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arXiv 2017年

作者： Masuda, M. Uehara, S. Watanabe, Y. Adachi, I. Ahn, J.K. Aihara, H. Al Said, S. Asner, D.M. Atmacan, H. Aulchenko, V. Aushev, T. Ayad, R. Babu, V. Badhrees, I. Bansal, V. Behera, P. Berger, M. Bhardwaj, V. Bhuyan, B. Biswal, J. Bondar, A. Bonvicini, G. Bozek, A. Bračko, M. Červenkov, D. Chen, A. Cheon, B.G. Chilikin, K. Cho, K. Choi, Y. Choudhury, S. Cinabro, D. Czank, T. Dash, N. Di Carlo, S. Doležal, Z. Drásal, Z. Dutta, D. Eidelman, S. Epifanov, D. Fast, J.E. Ferber, T. Fulsom, B.G. Garg, R. Gaur, V. Gabyshev, N. Garmash, A. Gelb, M. Giri, A. Goldenzweig, P. Guido, E. Haba, J. Hayasaka, K. Hayashii, H. Hedges, M.T. Hou, W.-S. Iijima, T. Inami, K. Inguglia, G. Ishikawa, A. Itoh, R. Iwasaki, M. Iwasaki, Y. Jacobs, W.W. Jaegle, I. Jin, Y. Joo, K.K. Julius, T. Kang, K.H. Karyan, G. Kawasaki, T. Kichimi, H. Kiesling, C. Kim, D.Y. Kim, H.J. Kim, J.B. Kim, K.T. Kim, S.H. Kodyš, P. Kotchetkov, D. Križan, P. Kroeger, R. Krokovny, P. Kulasiri, R. Kuzmin, A. Kwon, Y.-J. Lee, I.S. Lee, S.C. Li, L.K. Li, Y. Li Gioi, L. Libby, J. Liventsev, D. Lubej, M. Luo, T. Matsuda, T. Matvienko, D. Merola, M. Miyabayashi, K. Miyata, H. Mizuk, R. Mohanty, G.B. Moon, H.K. Mori, T. Mussa, R. Nakao, M. Nakazawa, H. Nanut, T. Nath, K.J. Natkaniec, Z. Nayak, M. Niiyama, M. Nisar, N.K. Nishida, S. Ogawa, S. Okuno, S. Ono, H. Onuki, Y. Pakhlov, P. Pakhlova, G. Pal, B. Park, H. Paul, S. Pedlar, T.K. Pestotnik, R. Piilonen, L.E. Ritter, M. Rostomyan, A. Russo, G. Sakai, Y. Salehi, M. Sandilya, S. Santelj, L. Sanuki, T. Savinov, V. Schneider, O. Schnell, G. Schwanda, C. Seidl, R. Seino, Y. Senyo, K. Seon, O. Sevior, M.E. Shebalin, V. Shen, C.P. Shibata, T.-A. Shimizu, N. Shiu, J.-G. Shwartz, B. Sokolov, A. Solovieva, E. Starič, M. Strube, J.F. Sumihama, M. Sumiyoshi, T. Takizawa, M. Tamponi, U. Tanida, K. Tenchini, F. Teramoto, Y. Uchida, M. Uglov, T. University of the Basque Country UPV/EHU Bilbao48080 Spain Beihang University Beijing100191 China Budker Institute of Nuclear Physics SB RAS Novosibirsk630090 Russia Faculty of Mathematics and Physics Charles University Prague121 16 Czech Republic Chonnam National University Kwangju660-701 Korea Republic of University of Cincinnati CincinnatiOH45221 United States Deutsches Elektronen-Synchrotron Hamburg22607 Germany University of Florida GainesvilleFL32611 United States Gifu University Gifu501-1193 Japan SOKENDAI Graduate University for Advanced Studies Hayama240-0193 Japan Hanyang University Seoul133-791 Korea Republic of University of Hawaii HonoluluHI96822 United States Tsukuba305-0801 Japan Tsukuba305-0801 IKERBASQUE Basque Foundation for Science Bilbao48013 Spain Indian Institute of Science Education and Research Mohali SAS Nagar140306 India Indian Institute of Technology Bhubaneswar Satya Nagar751007 India Indian Institute of Technology Guwahati Assam781039 India Indian Institute of Technology Hyderabad Telangana502285 India Indian Institute of Technology Madras Chennai600036 India Indiana University BloomingtonIN47408 United States Institute of High Energy Physics Chinese Academy of Sciences Beijing100049 China Institute of High Energy Physics Vienna1050 Austria Institute for High Energy Physics Protvino142281 Russia University of Mississippi UniversityMS38677 United States INFN - Sezione di Napoli Napoli80126 Italy INFN - Sezione di Torino Torino10125 Italy Advanced Science Research Center Japan Atomic Energy Agency Naka319-1195 J. Stefan Institute Ljubljana1000 Slovenia Kanagawa University Yokohama221-8686 Japan Institut für Experimentelle Kernphysik Karlsruher Institut für Technologie Karlsruhe76131 Germany Kennesaw State University KennesawGA30144 United States King Abdulaziz City for Science and Technology Riyadh11442 Saudi Arabia Department of Physics Faculty of Science King Abdulaziz U

We report a measurement of the cross section for KS0 pair production in single-tag two-photon collisions, γ∗γ → KS0 KS0, for Q2 up to 30 GeV2, where Q2 is the negative of the invariant mass squared of the tagged photon. The measurement covers the kinematic range 1.0 GeV ∗| ∗γ center-of-mass system. These results are based on a data sample of 759 fb−1 collected with the Belle detector at the KEKB asymmetric-energy e+e− collider. For the first time, the transition form factor of the f2′ (1525) meson is measured separately for the helicity-0, -1, and -2 components and also compared with theoretical calculations. Finally, the partial decay widths of the χc0 and χc2 mesons are measured as a function of Q2. Copyright © 2017, The Authors. All rights reserved.

关键词： Hadrons

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Measurement of branching fractions of hadronic decays of the Ω0c baryon

arXiv

引用

arXiv 2017年

作者： Yelton, J. Adachi, I. Aihara, H. Al Said, S. Asner, D.M. Atmacan, H. Aulchenko, V. Aushev, T. Ayad, R. Aziz, T. Babu, V. Bakich, A.M. Bansal, V. Behera, P. Berger, M. Bhardwaj, V. Biswal, J. Bobrov, A. Bondar, A. Bozek, A. Bračko, M. Browder, T.E. Červenkov, D. Chang, M.-C. Chang, P. Chekelian, V. Chen, A. Cheon, B.G. Chilikin, K. Cho, K. Choi, S.-K. Choi, Y. Choudhury, S. Cinabro, D. Czank, T. Dash, N. Di Carlo, S. Doležal, Z. Eidelman, S. Fast, J.E. Ferber, T. Fulsom, B.G. Garg, R. Gaur, V. Gabyshev, N. Garmash, A. Gelb, M. Giri, A. Goldenzweig, P. Greenwald, D. Guan, Y. Guido, E. Haba, J. Hara, T. Hayasaka, K. Hayashii, H. Hou, W.-S. Iijima, T. Inami, K. Inguglia, G. Ishikawa, A. Itoh, R. Iwasaki, M. Iwasaki, Y. Jacobs, W.W. Jeon, H.B. Jin, Y. Joffe, D. Julius, T. Karyan, G. Kawasaki, T. Kichimi, H. Kiesling, C. Kim, D.Y. Kim, H.J. Kim, J.B. Kim, S.H. Kim, Y.J. Kinoshita, K. Kodyš, P. Korpar, S. Kotchetkov, D. Križan, P. Kroeger, R. Krokovny, P. Kuhr, T. Kulasiri, R. Kumita, T. Kuzmin, A. Kwon, Y.-J. Lalwani, K. Lange, J.S. Lee, I.S. Lee, S.C. Li, L.K. Li, Y. Li Gioi, L. Libby, J. Liventsev, D. Lubej, M. Luo, T. Masuda, M. Matsuda, T. Matvienko, D. Merola, M. Miyabayashi, K. Miyata, H. Mizuk, R. Mohanty, G.B. Moon, H.K. Mori, T. Mussa, R. Nakano, E. Nakao, M. Nanut, T. Nath, K.J. Nayak, M. Niiyama, M. Nisar, N.K. Nishida, S. Ogawa, S. Okuno, S. Pakhlov, P. Pakhlova, G. Pal, B. Pardi, S. Park, C.W. Park, H. Paul, S. Pavelkin, I. Pedlar, T.K. Pestotnik, R. Piilonen, L.E. Popov, V. Ritter, M. Russo, G. Sakai, Y. Sandilya, S. Sanuki, T. Savinov, V. Schneider, O. Schnell, G. Schwanda, C. Schwartz, A.J. Seino, Y. Sevior, M.E. Shebalin, V. Shen, C.P. Shibata, T.-A. Shimizu, N. Shiu, J.-G. Shwartz, B. Singh, J.B. Sokolov, A. Solovieva, E. Starič, M. Strube, J.F. Sumihama, M. Sumiyoshi, T. Suzuki, K. Takizawa, M. Tamponi, U. University of the Basque Country UPV/EHU Bilbao48080 Spain Beihang University Beijing100191 China Budker Institute of Nuclear Physics SB RAS Novosibirsk630090 Russia Faculty of Mathematics and Physics Charles University Prague121 16 Czech Republic University of Cincinnati CincinnatiOH45221 United States Deutsches Elektronen-Synchrotron Hamburg22607 Germany University of Florida GainesvilleFL32611 United States Department of Physics Fu Jen Catholic University Taipei24205 Justus-Liebig-Universität Gießen Gießen35392 Germany Gifu University Gifu501-1193 Japan SOKENDAI Graduate University for Advanced Studies Hayama240-0193 Japan Gyeongsang National University Chinju660-701 Korea Republic of Hanyang University Seoul133-791 Korea Republic of University of Hawaii HonoluluHI96822 United States Tsukuba305-0801 Japan Tsukuba305-0801 IKERBASQUE Basque Foundation for Science Bilbao48013 Spain Indian Institute of Science Education and Research Mohali SAS Nagar140306 India Indian Institute of Technology Bhubaneswar Satya Nagar751007 India Indian Institute of Technology Guwahati Assam781039 India Indian Institute of Technology Hyderabad Telangana502285 India Indian Institute of Technology Madras Chennai600036 India Indiana University BloomingtonIN47408 United States Institute of High Energy Physics Chinese Academy of Sciences Beijing100049 China Institute of High Energy Physics Vienna1050 Austria Institute for High Energy Physics Protvino142281 Russia University of Mississippi UniversityMS38677 United States INFN Sezione di Napoli Napoli80126 Italy INFN Sezione di Torino Torino10125 Italy Advanced Science Research Center Japan Atomic Energy Agency Naka319-1195 J. Stefan Institute Ljubljana1000 Slovenia Kanagawa University Yokohama221-8686 Japan Institut für Experimentelle Kernphysik Karlsruher Institut für Technologie Karlsruhe76131 Germany Kennesaw State University KennesawGA30144 United States Department

Using a data sample of 980 fb−1 of e+e− annihilation data taken with the Belle detector operating at the KEKB asymmetric-energy e+e− collider, we report the results of a study of the decays of the Ω0c charmed baryon into hadronic final states. We report the most precise measurements to date of the relative branching fractions of the Ω0c into Ω−π+π0, Ω−π+π−π+, Ξ−K−π+π+, and Ξ0K−π+, as well as the first measurements of the branching fractions of the Ω0c into Ξ−K¯ 0π+, Ξ0K¯ 0, and ΛK¯ 0K¯ 0, all with respect to the Ω−π+ decay. In addition, we investigate the resonant substructure of these modes. Finally, we present a limit on the branching fraction for the decay Ω0c → Σ+K−K−π+. Copyright © 2017, The Authors. All rights reserved.

关键词： Hadrons

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Search for ϒ(1S,2S)→Zc+Zc(′)− and e+e−→Zc+Zc(′)− at s=10.52, 10.58, and 10.867 GeV

引用

Physical Review D 2018年第11期97卷 112004-112004页

作者： S. Jia C. P. Shen C. Z. Yuan I. Adachi H. Aihara S. Al Said D. M. Asner V. Aulchenko T. Aushev R. Ayad V. Babu I. Badhrees V. Bansal P. Behera C. Beleño B. Bhuyan T. Bilka J. Biswal A. Bozek M. Bračko D. Červenkov V. Chekelian A. Chen B. G. Cheon K. Chilikin K. Cho S.-K. Choi Y. Choi S. Choudhury D. Cinabro S. Cunliffe N. Dash S. Di Carlo Z. Doležal S. Eidelman J. E. Fast T. Ferber B. G. Fulsom R. Garg V. Gaur N. Gabyshev A. Garmash M. Gelb A. Giri P. Goldenzweig E. Guido J. Haba T. Hara K. Hayasaka H. Hayashii M. T. Hedges S. Hirose W.-S. Hou T. Iijima K. Inami G. Inguglia A. Ishikawa R. Itoh M. Iwasaki W. W. Jacobs I. Jaegle H. B. Jeon Y. Jin T. Julius G. Karyan T. Kawasaki C. Kiesling D. Y. Kim H. J. Kim J. B. Kim K. T. Kim S. H. Kim K. Kinoshita P. Kodyš S. Korpar D. Kotchetkov P. Križan R. Kroeger P. Krokovny T. Kuhr R. Kulasiri T. Kumita Y.-J. Kwon J. S. Lange I. S. Lee S. C. Lee L. K. Li Y. Li Y. B. Li L. Li Gioi J. Libby D. Liventsev M. Lubej T. Luo J. MacNaughton M. Masuda T. Matsuda M. Merola K. Miyabayashi H. Miyata R. Mizuk H. K. Moon R. Mussa E. Nakano M. Nakao T. Nanut K. J. Nath Z. Natkaniec M. Nayak M. Niiyama S. Nishida S. Ogawa S. Okuno H. Ono P. Pakhlov G. Pakhlova B. Pal S. Pardi H. Park S. Paul T. K. Pedlar R. Pestotnik L. E. Piilonen V. Popov M. Ritter A. Rostomyan G. Russo Y. Sakai M. Salehi S. Sandilya L. Santelj T. Sanuki V. Savinov O. Schneider G. Schnell C. Schwanda Y. Seino K. Senyo M. E. Sevior V. Shebalin T.-A. Shibata J.-G. Shiu B. Shwartz F. Simon A. Sokolov E. Solovieva S. Stanič M. Starič J. F. Strube M. Sumihama T. Sumiyoshi M. Takizawa U. Tamponi K. Tanida F. Tenchini K. Trabelsi M. Uchida T. Uglov S. Uno P. Urquijo Y. Usov C. Van Hulse G. Varner A. Vinokurova V. Vorobyev A. Vossen B. Wang C. H. Wang M.-Z. Wang P. Wang X. L. Wang M. Watanabe E. Widmann E. Won H. Ye S. Zakharov Z. P. Zhang V. Zhilich V. Zhukova V. Zhulanov A. Zupanc Beihang University Beijing 100191 Institute of High Energy Physics Chinese Academy of Sciences Beijing 100049 High Energy Accelerator Research Organization (KEK) Tsukuba 305-0801 SOKENDAI (The Graduate University for Advanced Studies) Hayama 240-0193 Department of Physics University of Tokyo Tokyo 113-0033 Department of Physics Faculty of Science University of Tabuk Tabuk 71451 Department of Physics Faculty of Science King Abdulaziz University Jeddah 21589 Brookhaven National Laboratory Upton New York 11973 Budker Institute of Nuclear Physics SB RAS Novosibirsk 630090 Novosibirsk State University Novosibirsk 630090 Moscow Institute of Physics and Technology Moscow Region 141700 Tata Institute of Fundamental Research Mumbai 400005 King Abdulaziz City for Science and Technology Riyadh 11442 Pacific Northwest National Laboratory Richland Washington 99352 Indian Institute of Technology Madras Chennai 600036 II. Physikalisches Institut Georg-August-Universität Göttingen 37073 Göttingen Indian Institute of Technology Guwahati Assam 781039 Faculty of Mathematics and Physics Charles University 121 16 Prague J. Stefan Institute 1000 Ljubljana H. Niewodniczanski Institute of Nuclear Physics Krakow 31-342 University of Maribor 2000 Maribor Max-Planck-Institut für Physik 80805 München National Central University Chung-li 32054 Hanyang University Seoul 133-791 P. N. Lebedev Physical Institute of the Russian Academy of Sciences Moscow 119991 Korea Institute of Science and Technology Information Daejeon 305-806 Gyeongsang National University Chinju 660-701 Sungkyunkwan University Suwon 440-746 Indian Institute of Technology Hyderabad Telangana 502285 Wayne State University Detroit Michigan 48202 Deutsches Elektronen–Synchrotron 22607 Hamburg Indian Institute of Technology Bhubaneswar Satya Nagar 751007 LAL Univ. Paris-Sud CNRS/IN2P3 Université Paris-Saclay Orsay Panjab University Chandigarh 160014 Virginia Polytechnic Institute and State University Blacksburg Virginia 24061 Inst

The first search for double charged charmoniumlike state production in ϒ(1S) and ϒ(2S) decays and in e+e− annihilation at s=10.52, 10.58, and 10.867 GeV is conducted using data collected with the Belle detector at the KEKB asymmetric energy electron-positron collider. No significant signals are observed in any of the studied modes, and the 90% credibility level upper limits on their product branching fractions in ϒ(1S) and ϒ(2S) decays [B(ϒ(1S,2S)→Zc+Zc(′)−)×B(Zc+→π++cc¯) (cc¯=J/ψ, χc1(1P), ψ(2S))] and the product of Born cross section and branching fraction for e+e−→Zc+Zc(′)− (σ(e+e−→Zc+Zc(′)−)×B(Zc+→π++cc¯)) at s=10.52, 10.58, and 10.867 GeV are determined. Here, Zc refers to the Zc(3900) and Zc(4200) observed in the πJ/ψ final state, the Zc1(4050) and Zc2(4250) in the πχc1(1P) final state, and the Zc(4050) and Zc(4430) in the πψ(2S) final state.

关键词： Exotic mesons Quarkonia

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Measurement of the tau Michel parameters η¯ and ξκ in the radiative leptonic decay τ − → −ντ ν¯γ

arXiv

引用

arXiv 2017年

作者： Shimizu, N. Aihara, H. Epifanov, D. Adachi, I. Al Said, S. Asner, D.M. Aulchenko, V. Aushev, T. Ayad, R. Babu, V. Badhrees, I. Bakich, A.M. Bansal, V. Barberio, E. Bhardwaj, V. Bhuyan, B. Biswal, J. Bobrov, A. Bozek, A. Bračko, M. Browder, T.E. Červenkov, D. Chang, M.-C. Chang, P. Chekelian, V. Chen, A. Cheon, B.G. Chilikin, K. Cho, K. Choi, S.-K. Choi, Y. Cinabro, D. Czank, T. Dash, N. Di Carlo, S. Doležal, Z. Dutta, D. Eidelman, S. Fast, J.E. Ferber, T. Fulsom, B.G. Garg, R. Gaur, V. Gabyshev, N. Garmash, A. Gelb, M. Goldenzweig, P. Greenwald, D. Guido, E. Haba, J. Hayasaka, K. Hayashii, H. Hedges, M.T. Hirose, S. Hou, W.-S. Iijima, T. Inami, K. Inguglia, G. Ishikawa, A. Itoh, R. Iwasaki, M. Jaegle, I. Jeon, H.B. Jia, S. Jin, Y. Joo, K.K. Julius, T. Kang, K.H. Karyan, G. Kawasaki, T. Kiesling, C. Kim, D.Y. Kim, J.B. Kim, S.H. Kim, Y.J. Kinoshita, K. Kodyš, P. Korpar, S. Kotchetkov, D. Križan, P. Kroeger, R. Krokovny, P. Kulasiri, R. Kuzmin, A. Kwon, Y.-J. Lange, J.S. Lee, I.S. Li, L.K. Li, Y. Li Gioi, L. Libby, J. Liventsev, D. Masuda, M. Merola, M. Miyabayashi, K. Miyata, H. Mohanty, G.B. Moon, H.K. Mori, T. Mussa, R. Nakano, E. Nakao, M. Nanut, T. Nath, K.J. Natkaniec, Z. Nayak, M. Niiyama, M. Nisar, N.K. Nishida, S. Ogawa, S. Okuno, S. Ono, H. Pakhlova, G. Pal, B. Park, C.W. Park, H. Paul, S. Pedlar, T.K. Pestotnik, R. Piilonen, L.E. Popov, V. Ritter, M. Rostomyan, A. Sakai, Y. Salehi, M. Sandilya, S. Sato, Y. Savinov, V. Schneider, O. Schnell, G. Schwanda, C. Seino, Y. Senyo, K. Sevior, M.E. Shebalin, V. Shibata, T.-A. Shiu, J.-G. Shwartz, B. Sokolov, A. Solovieva, E. Starič, M. Strube, J.F. Sumisawa, K. Sumiyoshi, T. Tamponi, U. Tanida, K. Tenchini, F. Trabelsi, K. Uchida, M. Uglov, T. Unno, Y. Uno, S. Usov, Y. van Hulse, C. Varner, G. Vorobyev, V. Vossen, A. Wang, C.H. Wang, M.-Z. Wang, P. Watanabe, M. Widmann, E. Won, E. Yamashita, Y. Ye, H. Yuan, C.Z. Zhang, Z.P. Zhilich, V. Zhukova, V. Zhulanov, V. Zupanc, A. University of the Basque Country UPV/EHU Bilbao48080 Spain Beihang University Beijing100191 China Budker Institute of Nuclear Physics SB RAS Novosibirsk630090 Russia Faculty of Mathematics and Physics Charles University Prague121 16 Czech Republic Chonnam National University Kwangju660-701 Korea Republic of University of Cincinnati CincinnatiOH45221 United States Deutsches Elektronen-Synchrotron Hamburg22607 Germany University of Florida GainesvilleFL32611 United States Department of Physics Fu Jen Catholic University Taipei24205 Justus-Liebig-Universität Gießen Gießen35392 Germany Hayama240-0193 Japan Gyeongsang National University Chinju660-701 Korea Republic of Hanyang University Seoul133-791 Korea Republic of University of Hawaii HonoluluHI96822 United States Tsukuba305-0801 Japan IKERBASQUE Basque Foundation for Science Bilbao48013 Spain Indian Institute of Science Education and Research Mohali SAS Nagar140306 India Indian Institute of Technology Bhubaneswar Satya Nagar751007 India Indian Institute of Technology Guwahati Assam781039 India Indian Institute of Technology Madras Chennai600036 India Indiana University BloomingtonIN47408 United States Institute of High Energy Physics Chinese Academy of Sciences Beijing100049 China Institute of High Energy Physics Vienna1050 Austria Institute for High Energy Physics Protvino 142281 Russia University of Mississippi UniversityMS38677 United States INFN - Sezione di Napoli Napoli80126 Italy INFN - Sezione di Torino Torino10125 Italy Advanced Science Research Center Japan Atomic Energy Agency Naka319-1195 J. Stefan Institute Ljubljana1000 Slovenia Kanagawa University Yokohama221-8686 Japan Institut für Experimentelle Kernphysik Karlsruher Institut für Technologie Karlsruhe76131 Germany Kennesaw State University KennesawGA30144 United States King Abdulaziz City for Science and Technology Riyadh11442 Saudi Arabia Department of Physics Faculty of Science K

We present a measurement of the Michel parameters of the τ lepton, η¯ and ξκ, in the radiative leptonic decay τ− → −ντν¯γ using 711 fb−1 of collision data collected with the Belle detector at the KEKB e+e− collider. The Michel parameters are measured in an unbinned maximum likelihood fit to the kinematic distribution of e+e− → τ+τ− → (π+π0ν¯τ)(−ντν¯γ) ( = e or µ). The measured values of the Michel parameters are η¯ = −1.3 ± 1.5 ± 0.8 and ξκ = 0.5 ± 0.4 ± 0.2, where the first error is statistical and the second is systematic. This is the first measurement of these parameters. These results are consistent with the Standard Model predictions within their uncertainties and constrain the coupling constants of the generalized weak interaction. Copyright © 2017, The Authors. All rights reserved.

关键词： Maximum likelihood

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Measurements of the absolute branching fractions of B+ → Xcc¯K+ and B+ → D¯ (∗)0π+ at Belle

arXiv

引用

arXiv 2017年

作者： Kato, Y. Iijima, T. Adachi, I. Aihara, H. Al Said, S. Asner, D.M. Aulchenko, V. Aushev, T. Ayad, R. Babu, V. Badhrees, I. Bakich, A.M. Bansal, V. Barberio, E. Behera, P. Bhardwaj, V. Bhuyan, B. Biswal, J. Bozek, A. Bračko, M. Browder, T.E. Červenkov, D. Chang, P. Cheaib, R. Chekelian, V. Chen, A. Cheon, B.G. Chilikin, K. Cho, K. Choi, S.-K. Choi, Y. Cinabro, D. Czank, T. Dash, N. Di Carlo, S. Doležal, Z. Drásal, Z. Dutta, D. Eidelman, S. Epifanov, D. Fast, J.E. Ferber, T. Fulsom, B.G. Gaur, V. Gabyshev, N. Garmash, A. Gelb, M. Goldenzweig, P. Greenwald, D. Guido, E. Haba, J. Hayasaka, K. Hayashii, H. Hedges, M.T. Hirose, S. Hou, W.-S. Inami, K. Inguglia, G. Ishikawa, A. Itoh, R. Iwasaki, M. Iwasaki, Y. Jacobs, W.W. Jaegle, I. Jeon, H.B. Jin, Y. Joo, K.K. Julius, T. Kaliyar, A.B. Kang, K.H. Karyan, G. Kawasaki, T. Kichimi, H. Kiesling, C. Kim, D.Y. Kim, J.B. Kim, S.H. Kim, Y.J. Kinoshita, K. Kodyš, P. Korpar, S. Kotchetkov, D. Križan, P. Kroeger, R. Krokovny, P. Kuhr, T. Kulasiri, R. Kuzmin, A. Kwon, Y.-J. Lange, J.S. Lee, I.S. Li, C.H. Li, L. Li Gioi, L. Libby, J. Liventsev, D. Lubej, M. Luo, T. Masuda, M. Matsuda, T. Merola, M. Miyabayashi, K. Miyata, H. Mizuk, R. Mohanty, G.B. Moon, H.K. Mori, T. Mussa, R. Nakano, E. Nakao, M. Nanut, T. Nath, K.J. Natkaniec, Z. Nayak, M. Niiyama, M. Nisar, N.K. Nishida, S. Ogawa, S. Okuno, S. Ono, H. Pakhlov, P. Pakhlova, G. Pal, B. Park, C.-S. Park, C.W. Park, H. Paul, S. Pedlar, T.K. Pestotnik, R. Piilonen, L.E. Ritter, M. Rostomyan, A. Sakai, Y. Salehi, M. Sandilya, S. Sato, Y. Savinov, V. Schneider, O. Schnell, G. Schwanda, C. Schwartz, A.J. Seino, Y. Senyo, K. Sevior, M.E. Shebalin, V. Shen, C.P. Shibata, T.-A. Shiu, J.-G. Simon, F. Sokolov, A. Solovieva, E. Starič, M. Strube, J.F. Sumihama, M. Sumisawa, K. Sumiyoshi, T. Takizawa, M. Tamponi, U. Tanida, K. Tenchini, F. Trabelsi, K. Uchida, M. University of the Basque Country UPV/EHU Bilbao48080 Spain Beihang University Beijing100191 China Budker Institute of Nuclear Physics SB RAS Novosibirsk630090 Russia Faculty of Mathematics and Physics Charles University Prague121 16 Czech Republic Chonnam National University Kwangju660-701 Korea Republic of University of Cincinnati CincinnatiOH45221 United States Deutsches Elektronen-Synchrotron Hamburg22607 Germany University of Florida GainesvilleFL32611 United States Justus-Liebig-Universität Gießen Gießen35392 Germany Gifu University Gifu501-1193 Japan Hayama240-0193 Japan Gyeongsang National University Chinju660-701 Korea Republic of Hanyang University Seoul133-791 Korea Republic of University of Hawaii HonoluluHI96822 United States Tsukuba305-0801 Japan Tsukuba305-0801 IKERBASQUE Basque Foundation for Science Bilbao48013 Spain Indian Institute of Science Education and Research Mohali SAS Nagar 140306 India Indian Institute of Technology Bhubaneswar Satya Nagar751007 India Indian Institute of Technology Guwahati Assam781039 India Indian Institute of Technology Madras Chennai600036 India Indiana University BloomingtonIN47408 United States Institute of High Energy Physics Chinese Academy of Sciences Beijing100049 China Institute of High Energy Physics Vienna1050 Austria Institute for High Energy Physics Protvino 142281 Russia University of Mississippi UniversityMS38677 United States INFN - Sezione di Napoli Napoli80126 Italy INFN - Sezione di Torino Torino10125 Italy Advanced Science Research Center Japan Atomic Energy Agency Naka319-1195 J. Stefan Institute Ljubljana1000 Slovenia Kanagawa University Yokohama221-8686 Japan Institut für Experimentelle Kernphysik Karlsruher Institut für Technologie Karlsruhe76131 Germany Kennesaw State University KennesawGA30144 United States King Abdulaziz City for Science and Technology Riyadh11442 Saudi Arabia Department of Physics Faculty of Science King Abd

We present the measurement of the absolute branching fractions of B+ → Xcc¯K+ and B+ → D¯ (∗)0π+ decays, using a data sample of 772×106 BB¯ pairs collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e− collider. Here, Xcc¯ denotes ηc, J/ψ, χc0, χc1, ηc(2S), ψ(2S), ψ(3770), X(3872), and X(3915). We do not observe significant signals for X(3872) nor X(3915), and set the 90% confidence level upper limits: B(B+ → X(3872)K+) −4 and B(B+ → X(3915)K+) −4. These represent the most stringent upper limit for B(B+ → X(3872)K+) to date and the first limit for B(B+ → X(3915)K+). The measured branching fractions for ηc and ηc(2S) are the most precise to date: B(B+ → ηcK+) = (12.0 ± 0.8 ± 0.7) × 10−4 and B(B+ → ηc(2S)K+) = (4.8 ± 1.1 ± 0.3) × 10−4, where the first and second uncertainties are statistical and systematic, respectively. Copyright © 2017, The Authors. All rights reserved.

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Search for CP violation and measurement of the branching fraction in the decay D0 → KS0KS0

arXiv

引用

arXiv 2017年

作者： Dash, N. Bahinipati, S. Bhardwaj, V. Trabelsi, K. Adachi, I. Aihara, H. Al Said, S. Asner, D.M. Aulchenko, V. Aushev, T. Ayad, R. Babu, V. Badhrees, I. Bakich, A.M. Bansal, V. Barberio, E. Bhuyan, B. Biswal, J. Bobrov, A. Bondar, A. Bonvicini, G. Bozek, A. Bračko, M. Breibeck, F. Browder, T.E. Červenkov, D. Chang, M.-C. Chekelian, V. Chen, A. Cheon, B.G. Chilikin, K. Cho, K. Choi, Y. Cinabro, D. Di Carlo, S. Doležal, Z. Drásal, Z. Dutta, D. Eidelman, S. Epifanov, D. Farhat, H. Fast, J.E. Ferber, T. Fulsom, B.G. Gaur, V. Gabyshev, N. Garmash, A. Gillard, R. Goldenzweig, P. Haba, J. Hara, T. Hayasaka, K. Hayashii, H. Hedges, M.T. Hou, W.-S. Iijima, T. Inami, K. Ishikawa, A. Itoh, R. Iwasaki, Y. Jacobs, W.W. Jaegle, I. Jeon, H.B. Jin, Y. Joffe, D. Joo, K.K. Julius, T. Kahn, J. Kaliyar, A.B. Karyan, G. Katrenko, P. Kawasaki, T. Kiesling, C. Kim, D.Y. Kim, H.J. Kim, J.B. Kim, K.T. Kim, M.J. Kim, S.H. Kim, Y.J. Kinoshita, K. Kodyš, P. Korpar, S. Kotchetkov, D. Križan, P. Krokovny, P. Kuhr, T. Kulasiri, R. Kumar, R. Kumita, T. Kuzmin, A. Kwon, Y.-J. Lange, J.S. Lee, I.S. Li, C.H. Li, L. Li, Y. Li Gioi, L. Libby, J. Liventsev, D. Lubej, M. Luo, T. Masuda, M. Matvienko, D. Merola, M. Miyabayashi, K. Miyata, H. Mizuk, R. Mohanty, G.B. Mohanty, S. Moon, H.K. Mori, T. Mussa, R. Nakano, E. Nakao, M. Nanut, T. Nath, K.J. Natkaniec, Z. Nayak, M. Niiyama, M. Nisar, N.K. Nishida, S. Ogawa, S. Okuno, S. Ono, H. Pakhlov, P. Pakhlova, G. Pal, B. Pardi, S. Park, C.-S. Park, H. Paul, S. Pedlar, T.K. Pesántez, L. Pestotnik, R. Piilonen, L.E. Prasanth, K. Ritter, M. Rostomyan, A. Sahoo, H. Sakai, Y. Sandilya, S. Santelj, L. Sanuki, T. Sato, Y. Savinov, V. Schneider, O. Schnell, G. Schwanda, C. Schwartz, A.J. Seino, Y. Senyo, K. Sevior, M.E. Shebalin, V. Shen, C.P. Shibata, T.-A. Shiu, J.-G. Shwartz, B. Simon, F. Sokolov, A. Solovieva, E. University of the Basque Country UPV/EHU Bilbao48080 Spain Beihang University Beijing100191 China University of Bonn Bonn53115 Germany Budker Institute of Nuclear Physics SB RAS Novosibirsk630090 Russia Faculty of Mathematics and Physics Charles University Prague121 16 Czech Republic Chonnam National University Kwangju660-701 Korea Republic of University of Cincinnati CincinnatiOH45221 United States Deutsches Elektronen-Synchrotron Hamburg22607 Germany University of Florida GainesvilleFL32611 United States Department of Physics Fu Jen Catholic University Taipei24205 Justus-Liebig-Universität Gießen Gießen35392 Germany SOKENDAI Graduate University for Advanced Studies Hayama240-0193 Japan Hanyang University Seoul133-791 Korea Republic of University of Hawaii HonoluluHI96822 United States Tsukuba305-0801 Japan Tsukuba305-0801 IKERBASQUE Basque Foundation for Science Bilbao48013 Spain Indian Institute of Science Education and Research Mohali SAS Nagar 140306 India Indian Institute of Technology Bhubaneswar Satya Nagar751007 India Indian Institute of Technology Guwahati Assam781039 India Indian Institute of Technology Madras Chennai600036 India Indiana University BloomingtonIN47408 United States Institute of High Energy Physics Chinese Academy of Sciences Beijing100049 China Institute of High Energy Physics Vienna1050 Austria Institute for High Energy Physics Protvino 142281 Russia INFN - Sezione di Napoli Napoli80126 Italy INFN - Sezione di Torino Torino10125 Italy Advanced Science Research Center Japan Atomic Energy Agency Naka319-1195 J. Stefan Institute Ljubljana1000 Slovenia Kanagawa University Yokohama221-8686 Japan Institut für Experimentelle Kernphysik Karlsruher Institut für Technologie Karlsruhe76131 Germany Kennesaw State University KennesawGA30144 United States King Abdulaziz City for Science and Technology Riyadh11442 Saudi Arabia Department of Physics Faculty of Science King Abdulaziz Univer

We report a study of the decay D0 → KS0KS0 using 921 fb−1 of data collected at or near the Υ(4S) and Υ(5S) resonances with the Belle detector at the KEKB asymmetric energy e+e− collider. The measured time-integrated CP asymmetry is ACP(D0 → KS0KS0) = (−0.02±1.53±0.02±0.17)%, and the branching fraction is B(D0 → KS0KS0) = (1.321 ± 0.023 ± 0.036 ± 0.044) × 10−4, where the first uncertainty is statistical, the second is systematic, and the third is due to the normalization mode (D0 → KS0π0). These results are significantly more precise than previous measurements available for this mode. The ACP measurement is consistent with the standard model expectation. Copyright © 2017, The Authors. All rights reserved.

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Evidence for isospin violation and measurement of CP asymmetries in B → K∗(892)γ

arXiv

引用

arXiv 2017年

作者： Horiguchi, T. Ishikawa, A. Yamamoto, H. Adachi, I. Aihara, H. Al Said, S. Asner, D.M. Aulchenko, V. Aushev, T. Ayad, R. Babu, V. Badhrees, I. Bakich, A.M. Bansal, V. Behera, P. Bhardwaj, V. Bhuyan, B. Biswal, J. Bobrov, A. Bonvicini, G. Bozek, A. Bračko, M. Browder, T.E. Červenkov, D. Chekelian, V. Chen, A. Cheon, B.G. Chilikin, K. Cho, K. Choi, Y. Cinabro, D. Czank, T. Dash, N. Di Carlo, S. Doležal, Z. Drásal, Z. Dutta, D. Eidelman, S. Epifanov, D. Farhat, H. Fast, J.E. Ferber, T. Fulsom, B.G. Gaur, V. Gabyshev, N. Garmash, A. Gelb, M. Gillard, R. Goldenzweig, P. Golob, B. Guan, Y. Guido, E. Haba, J. Hara, T. Hayasaka, K. Hayashii, H. Hedges, M.T. Higuchi, T. Hirose, S. Hou, W.-S. Iijima, T. Inami, K. Inguglia, G. Itoh, R. Iwasaki, Y. Jacobs, W.W. Jaegle, I. Jeon, H.B. Jia, S. Jin, Y. Joffe, D. Joo, K.K. Julius, T. Kang, K.H. Kawasaki, T. Kim, D.Y. Kim, J.B. Kim, K.T. Kim, M.J. Kim, S.H. Kim, Y.J. Kinoshita, K. Kodyš, P. Korpar, S. Kotchetkov, D. Križan, P. Krokovny, P. Kuhr, T. Kulasiri, R. Kumar, R. Kumita, T. Kuzmin, A. Kwon, Y.-J. Lange, J.S. Li, C.H. Li, L. Li Gioi, L. Libby, J. Liventsev, D. Lubej, M. Luo, T. Masuda, M. Matsuda, T. Matvienko, D. Merola, M. Miyabayashi, K. Miyata, H. Mizuk, R. Mohanty, G.B. Mohanty, S. Moon, H.K. Mori, T. Mussa, R. Nakano, E. Nakao, M. Nanut, T. Nath, K.J. Natkaniec, Z. Nayak, M. Nisar, N.K. Nishida, S. Ogawa, S. Okuno, S. Ono, H. Pakhlov, P. Pakhlova, G. Pal, B. Pardi, S. Park, C.-S. Park, H. Paul, S. Pedlar, T.K. Pestotnik, R. Piilonen, L.E. Prasanth, K. Pulvermacher, C. Rauch, J. Rostomyan, A. Sakai, Y. Sandilya, S. Santelj, L. Savinov, V. Schneider, O. Schnell, G. Schwanda, C. Schwartz, A.J. Seino, Y. Senyo, K. Seong, I.S. Sevior, M.E. Shebalin, V. Shen, C.P. Shibata, T.-A. Shiu, J.-G. Simon, F. Sokolov, A. Solovieva, E. Starič, M. Strube, J.F. Sumisawa, K. Sumiyoshi, T. University of the Basque Country UPV/EHU Bilbao48080 Spain Beihang University Beijing100191 China Budker Institute of Nuclear Physics SB RAS Novosibirsk630090 Russia Faculty of Mathematics and Physics Charles University Prague121 16 Czech Republic Chonnam National University Kwangju660-701 Korea Republic of University of Cincinnati CincinnatiOH45221 United States Deutsches Elektronen-Synchrotron Hamburg22607 Germany University of Florida GainesvilleFL32611 United States Justus-Liebig-Universität Gießen Gießen35392 Germany SOKENDAI Graduate University for Advanced Studies Hayama240-0193 Japan Hanyang University Seoul133-791 Korea Republic of University of Hawaii HonoluluHI96822 United States Tsukuba305-0801 Japan Tsukuba305-0801 IKERBASQUE Basque Foundation for Science Bilbao48013 Spain Indian Institute of Science Education and Research Mohali SAS Nagar140306 India Indian Institute of Technology Bhubaneswar Satya Nagar751007 India Indian Institute of Technology Guwahati Assam781039 India Indian Institute of Technology Madras Chennai600036 India Indiana University BloomingtonIN47408 United States Institute of High Energy Physics Chinese Academy of Sciences Beijing100049 China Institute of High Energy Physics Vienna1050 Austria Institute for High Energy Physics Protvino142281 Russia INFN - Sezione di Napoli Napoli80126 Italy INFN - Sezione di Torino Torino10125 Italy Advanced Science Research Center Japan Atomic Energy Agency Naka319-1195 J. Stefan Institute Ljubljana1000 Slovenia Kanagawa University Yokohama221-8686 Japan Institut für Experimentelle Kernphysik Karlsruher Institut für Technologie Karlsruhe76131 Germany University of Tokyo Kashiwa277-8583 Japan Kennesaw State University KennesawGA30144 United States King Abdulaziz City for Science and Technology Riyadh11442 Saudi Arabia Department of Physics Faculty of Science King Abdulaziz University Jeddah21589 Korea Institute of Science and Technolog

We report the first evidence for isospin violation in B → K∗γ and the first measurement of difference of CP asymmetries between B+ → K∗+γ and B0 → K∗0γ. This analysis is based on the data sample containing 772 × 106BB¯ pairs that was collected with the Belle detector at the KEKB energy-asymmetric e+e− collider. We find evidence for the isospin violation with a significance of 3.1σ, ∆0+ = (+6.2 ± 1.5(stat.) ± 0.6(syst.) ± 1.2(f+−/f00))%, where the third uncertainty is due to the uncertainty on the fraction of B+B− to B0B¯0 production in Υ(4S) decays. The measured value is consistent with predictions of the SM. The result for the difference of CP asymmetries is ∆ACP = (+2.4 ± 2.8(stat.) ± 0.5(syst.))%, consistent with zero. The measured branching fractions and CP asymmetries for charged and neutral B meson decays are the most precise to date. We also calculate the ratio of branching fractions of B0 → K∗0γ to Bs0 → φγ. Copyright © 2017, The Authors. All rights reserved.

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Production cross sections of hyperons and charmed baryons from e+e− annihilation near √s = 10.52 GeV

arXiv

引用

arXiv 2017年

作者： Niiyama, M. Sumihama, M. Nakano, T. Adachi, I. Aihara, H. Al Said, S. Asner, D.M. Aulchenko, V. Aushev, T. Ayad, R. Babu, V. Badhrees, I. Bakich, A.M. Bansal, V. Barberio, E. Berger, M. Bhardwaj, V. Bhuyan, B. Biswal, J. Bobrov, A. Bonvicini, G. Bozek, A. Bračko, M. Browder, T.E. Červenkov, D. Chang, M.-C. Chekelian, V. Chen, A. Cheon, B.G. Chilikin, K. Chistov, R. Cho, K. Choi, Y. Cinabro, D. Dash, N. Di Carlo, S. Doležal, Z. Drásal, Z. Dutta, D. Eidelman, S. Farhat, H. Fast, J.E. Ferber, T. Fulsom, B.G. Gaur, V. Gabyshev, N. Garmash, A. Gillard, R. Goldenzweig, P. Haba, J. Hara, T. Hayasaka, K. Hayashii, H. Iijima, T. Inami, K. Ishikawa, A. Itoh, R. Iwasaki, Y. Jacobs, W.W. Jaegle, I. Jin, Y. Joffe, D. Joo, K.K. Julius, T. Karyan, G. Kato, Y. Katrenko, P. Kim, D.Y. Kim, H.J. Kim, J.B. Kim, K.T. Kim, M.J. Kim, S.H. Kim, Y.J. Kinoshita, K. Kodyš, P. Kotchetkov, D. Križan, P. Krokovny, P. Kulasiri, R. Kuzmin, A. Kwon, Y.-J. Lange, J.S. Lee, I.S. Li, C.H. Li, L. Li, Y. Li Gioi, L. Libby, J. Liventsev, D. Luo, T. Masuda, M. Matsuda, T. Matvienko, D. Merola, M. Miyabayashi, K. Miyata, H. Mizuk, R. Moon, H.K. Mori, T. Mussa, R. Nakano, E. Nakao, M. Nanut, T. Nath, K.J. Natkaniec, Z. Nayak, M. Nisar, N.K. Nishida, S. Ogawa, S. Ono, H. Pakhlov, P. Pakhlova, G. Pal, B. Pardi, S. Park, H. Pedlar, T.K. Piilonen, L.E. Pulvermacher, C. Ritter, M. Sahoo, H. Sakai, Y. Sandilya, S. Santelj, L. Sato, Y. Savinov, V. Schneider, O. Schnell, G. Schwanda, C. Seidl, R. Seino, Y. Senyo, K. Sevior, M.E. Shebalin, V. Shen, C.P. Shibata, T.-A. Shiu, J.-G. Shwartz, B. Simon, F. Sokolov, A. Solovieva, E. Starič, M. Sumiyoshi, T. Takizawa, M. Tanida, K. Tenchini, F. Uchida, M. Uehara, S. Uglov, T. Unno, Y. Uno, S. van Hulse, C. Varner, G. Vossen, A. Wang, C.H. Wang, M.-Z. Wang, P. Watanabe, Y. Widmann, E. Williams, K.M. Won, E. Yamashita, Y. Ye, H. Yuan, C.Z. Yusa, Y. Zhang, Z.P. Zhilich, V. Zhulanov, V. Zupanc, A. University of the Basque Country UPV/EHU Bilbao48080 Spain Beihang University Beijing100191 China Budker Institute of Nuclear Physics SB RAS Novosibirsk630090 Russia Faculty of Mathematics and Physics Charles University Prague121 16 Czech Republic Chonnam National University Kwangju660-701 Korea Republic of University of Cincinnati CincinnatiOH45221 United States Deutsches Elektronen-Synchrotron Hamburg22607 Germany University of Florida GainesvilleFL32611 United States Department of Physics Fu Jen Catholic University Taipei24205 Justus-Liebig-Universität Gießen Gießen35392 Germany Gifu University Gifu501-1193 Japan SOKENDAI Graduate University for Advanced Studies Hayama240-0193 Japan Hanyang University Seoul133-791 Korea Republic of University of Hawaii HonoluluHI96822 United States Tsukuba305-0801 Japan Tsukuba305-0801 IKERBASQUE Basque Foundation for Science Bilbao48013 Spain Indian Institute of Science Education and Research Mohali SAS Nagar 140306 India Indian Institute of Technology Bhubaneswar Satya Nagar751007 India Indian Institute of Technology Guwahati Assam781039 India Indian Institute of Technology Madras Chennai600036 India Indiana University BloomingtonIN47408 United States Institute of High Energy Physics Chinese Academy of Sciences Beijing100049 China Institute of High Energy Physics Vienna1050 Austria Institute for High Energy Physics Protvino142281 Russia INFN - Sezione di Napoli Napoli80126 Italy INFN - Sezione di Torino Torino10125 Italy Advanced Science Research Center Japan Atomic Energy Agency Naka319-1195 J. Stefan Institute Ljubljana1000 Slovenia Kanagawa University Yokohama221-8686 Japan Institut für Experimentelle Kernphysik Karlsruher Institut für Technologie Karlsruhe76131 Germany Kennesaw State University KennesawGA30144 United States King Abdulaziz City for Science and Technology Riyadh11442 Saudi Arabia Department of Physics Faculty of Science King Abdulaziz Universit

We measure the inclusive production cross sections of hyperons and charmed baryons from e+e− annihilation using a 800 fb−1 data sample taken near the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e− collider. The feed-down contributions from heavy particles are subtracted using our data, and the direct production cross sections are presented for the first time. The production cross sections divided by the number of spin states for S = −1 hyperons follow an exponential function with a single slope parameter except for the Σ(1385)+ resonance. Suppression for Σ(1385)+ and Ξ(1530)0 hyperons is observed. Among the production cross sections of charmed baryons, a factor of three difference for Λ+c states over Σc states is observed. This observation suggests a diquark structure for these baryons. Copyright © 2017, The Authors. All rights reserved.

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Observation of excited Ωc charmed baryons in e+e− collisions

arXiv

引用

arXiv 2017年

作者： Yelton, J. Adachi, I. Aihara, H. Al Said, S. Asner, D.M. Aulchenko, V. Aushev, T. Ayad, R. Aziz, T. Babu, V. Bakich, A.M. Bansal, V. Barberio, E. Behera, P. Berger, M. Bhardwaj, V. Bhuyan, B. Biswal, J. Bobrov, A. Bozek, A. Bračko, M. Browder, T.E. Červenkov, D. Chang, P. Chen, A. Cheon, B.G. Chilikin, K. Cho, K. Choi, S.-K. Choi, Y. Choudhury, S. Cinabro, D. Czank, T. Dash, N. Di Carlo, S. Doležal, Z. Dutta, D. Eidelman, S. Fast, J.E. Ferber, T. Fulsom, B.G. Garg, R. Gaur, V. Gabyshev, N. Garmash, A. Gelb, M. Giri, A. Goldenzweig, P. Golob, B. Greenwald, D. Guido, E. Haba, J. Hayasaka, K. Hayashii, H. Hedges, M.T. Hou, W.-S. Inami, K. Inguglia, G. Ishikawa, A. Itoh, R. Iwasaki, M. Iwasaki, Y. Jacobs, W.W. Jeon, H.B. Jin, Y. Julius, T. Kang, K.H. Karyan, G. Kato, Y. Kawasaki, T. Kichimi, H. Kim, D.Y. Kim, H.J. Kim, J.B. Kim, S.H. Kinoshita, K. Kodyš, P. Korpar, S. Kotchetkov, D. Križan, P. Kroeger, R. Krokovny, P. Kuhr, T. Kulasiri, R. Kumita, T. Kuzmin, A. Kwon, Y.-J. Lange, J.S. Lee, I.S. Lee, S.C. Li, C.H. Li, L.K. Li, Y. Li Gioi, L. Liventsev, D. Lubej, M. Luo, T. Masuda, M. Matvienko, D. Merola, M. Miyata, H. Mizuk, R. Mohanty, G.B. Moon, H.K. Mori, T. Mussa, R. Nakano, E. Nakao, M. Nanut, T. Nath, K.J. Nayak, M. Niiyama, M. Nisar, N.K. Nishida, S. Ogawa, S. Okuno, S. Ono, H. Pakhlov, P. Pakhlova, G. Pal, B. Park, H. Paul, S. Pavelkin, I. Pedlar, T.K. Pestotnik, R. Piilonen, L.E. Popov, V. Ritter, M. Russo, G. Sakai, Y. Sandilya, S. Savinov, V. Schneider, O. Schnell, G. Schwanda, C. Seino, Y. Sevior, M.E. Shebalin, V. Shen, C.P. Shibata, T.-A. Shimizu, N. Shiu, J.-G. Shwartz, B. Simon, F. Singh, J.B. Solovieva, E. Starič, M. Strube, J.F. Sumihama, M. Sumiyoshi, T. Suzuki, K. Takizawa, M. Tamponi, U. Tanida, K. Tenchini, F. Uchida, M. Uglov, T. Unno, Y. Uno, S. Usov, Y. Varner, G. Varvell, K.E. Vinokurova, A. University of the Basque Country UPV/EHU Bilbao48080 Spain Beihang University Beijing100191 China Budker Institute of Nuclear Physics SB RAS Novosibirsk630090 Russia Faculty of Mathematics and Physics Charles University Prague121 16 Czech Republic University of Cincinnati CincinnatiOH45221 United States Deutsches Elektronen-Synchrotron Hamburg22607 Germany University of Florida GainesvilleFL32611 United States Gifu University Gifu501-1193 Japan SOKENDAI Graduate University for Advanced Studies Hayama240-0193 Japan Gyeongsang National University Chinju660-701 Korea Republic of Hanyang University Seoul133-791 Korea Republic of University of Hawaii HonoluluHI96822 United States Tsukuba305-0801 Japan Tsukuba305-0801 IKERBASQUE Basque Foundation for Science Bilbao48013 Spain Indian Institute of Science Education and Research Mohali SAS Nagar140306 India Indian Institute of Technology Bhubaneswar Satya Nagar751007 India Indian Institute of Technology Guwahati Assam781039 India Indian Institute of Technology Hyderabad Telangana502285 India Indian Institute of Technology Madras Chennai600036 India Indiana University BloomingtonIN47408 United States Institute of High Energy Physics Chinese Academy of Sciences Beijing100049 China Institute of High Energy Physics Vienna1050 Austria University of Mississippi UniversityMS38677 United States INFN - Sezione di Napoli Napoli80126 Italy INFN - Sezione di Torino Torino10125 Italy Advanced Science Research Center Japan Atomic Energy Agency Naka319-1195 J. Stefan Institute Ljubljana1000 Slovenia Kanagawa University Yokohama221-8686 Japan Institut für Experimentelle Kernphysik Karlsruher Institut für Technologie Karlsruhe76131 Germany Kennesaw State University KennesawGA30144 United States Department of Physics Faculty of Science King Abdulaziz University Jeddah21589 Korea Institute of Science and Technology Information Daejeon305-806 Korea Republic of Korea University

Using the entire Belle data sample of 980 fb−1 of e+e− collisions, we present the results of a study of excited Ωc charmed baryons in the decay mode Ξ+c K−. We show confirmation of four of the five narrow states reported by the LHCb Collaboration: the Ωc(3000), Ωc(3050), Ωc(3066), and Ωc(3090). Copyright © 2017, The Authors. All rights reserved.

关键词： Hadrons

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Study of η and dipion transitions in γ(4S) decays to lower bottomonia

arXiv

引用

arXiv 2017年

作者： Guido, E. Mussa, R. Tamponi, U. Adachi, I. Aihara, H. Al Said, S. Asner, D.M. Aulchenko, V. Aushev, T. Ayad, R. Badhrees, I. Bakich, A.M. Bansal, V. Behera, P. Bhardwaj, V. Bhuyan, B. Biswal, J. Bobrov, A. Bondar, A. Bozek, A. Bračko, M. Browder, T.E. Červenkov, D. Chekelian, V. Chen, A. Cheon, B.G. Chilikin, K. Cho, K. Choi, S.-K. Choi, Y. Cinabro, D. Dash, N. Di Carlo, S. Doležal, Z. Drásal, Z. Eidelman, S. Epifanov, D. Farhat, H. Fast, J.E. Ferber, T. Fulsom, B.G. Gaur, V. Gabyshev, N. Garmash, A. Gelb, M. Gillard, R. Goldenzweig, P. Haba, J. Hara, T. Hayasaka, K. Hayashii, H. Hedges, M.T. Hou, W.-S. Iijima, T. K., Inami G., Inguglia A., Ishikawa R., Itoh Y., Iwasaki W.W., Jacobs I., Jaegle H.B., Jeon S., Jia Y., Jin D., Joffe K.K., Joo T., Julius K.H., Kang G., Karyan T., Kawasaki D.Y., Kim J.B., Kim K.T., Kim M.J., Kim S.H., Kim Y.J., Kim K., Kinoshita P., Kodyš S., Korpar D., Kotchetkov P., Križan P., Krokovny R., Kulasiri T., Kumita A., Kuzmin Y.-J., Kwon J.S., Lange P., Lewis C.H., Li L., Li L., Li Gioi J., Libby D., Liventsev M., Lubej T., Luo M., Masuda T., Matsuda D., Matvienko M., Merola K., Miyabayashi H., Miyata R., Mizuk H.K., Moon T., Mori E., Nakano M., Nakao T., Nanut K.J., Nath Z., Natkaniec M., Nayak M., Niiyama N.K., Nisar S., Nishida S., Ogawa H., Ono P., Pakhlov G., Pakhlova B., Pal S., Pardi C.-S., Park H., Park S., Paul T.K., Pedlar R., Pestotnik L.E., Piilonen C., Pulvermacher M., Ritter A., Rostomyan Y., Sakai S., Sandilya L., Santelj T., Sanuki V., Savinov O., Schneider G., Schnell C., Schwanda Y., Seino K., Senyo M.E., Sevior V., Shebalin C.P., Shen T.-A., Shibata J.-G., Shiu B., Shwartz F., Simon A., Sokolov E., Solovieva M., Starič J.F., Strube K., Sumisawa T., Sumiyoshi M., Takizawa K., Tanida F., Tenchini K., Trabelsi M., Uchida T., Uglov Y., Unno S., Uno Y., Usov C., Van Hulse G., Varner University of the Basque Country UPV/EHU Bilbao48080 Spain Beihang University Beijing100191 China Budker Institute of Nuclear Physics SB RAS Novosibirsk630090 Russia Faculty of Mathematics and Physics Charles University Prague121 16 Czech Republic Chonnam National University Kwangju660-701 Korea Republic of University of Cincinnati CincinnatiOH45221 United States Deutsches Elektronen-Synchrotron Hamburg22607 Germany University of Florida GainesvilleFL32611 United States Justus-Liebig-Universität Gießen Gießen35392 Germany Hayama240-0193 Japan Gyeongsang National University Chinju660-701 Korea Republic of Hanyang University Seoul133-791 Korea Republic of University of Hawaii HonoluluHI96822 United States Tsukuba305-0801 Japan Tsukuba305-0801 IKERBASQUE Basque Foundation for Science Bilbao48013 Spain Indian Institute of Science Education and Research Mohali SAS Nagar140306 India Indian Institute of Technology Bhubaneswar Satya Nagar751007 India Indian Institute of Technology Guwahati Assam781039 India Indian Institute of Technology Madras Chennai600036 India Indiana University BloomingtonIN47408 United States Institute of High Energy Physics Chinese Academy of Sciences Beijing100049 China Institute of High Energy Physics Vienna1050 Austria Institute for High Energy Physics Protvino142281 Russia INFN - Sezione di Napoli Napoli80126 Italy INFN - Sezione di Torino Torino10125 Italy Advanced Science Research Center Japan Atomic Energy Agency Naka319-1195 J. Stefan Institute Ljubljana1000 Slovenia Kanagawa University Yokohama221-8686 Japan Institut für Experimentelle Kernphysik Karlsruher Institut für Technologie Karlsruhe76131 Germany Kennesaw State University KennesawGA30144 United States King Abdulaziz City for Science and Technology Riyadh11442 Saudi Arabia Department of Physics Faculty of Science King Abdulaziz University Jeddah21589 Korea Institute of Science and Technology Information Daejeon305-806

We study hadronic transitions between bottomonium states using 496 fb-1data collected at the γ(4S) resonance with the Belle detector at the KEKB asymmetric energy e+e-collider. We measure: B(γ(4S) → π+π-γ(1S)) = (8.2 ± 0.5(stat.) ± 0.4(syst.)) × 10-5, b(γ(4S) → π+p-γ(2S)) = (7.9 ± 1.0(stat.) ± 0.4(syst.)) × 10-5, and b(γ(4S) → ηγ(1S)) = (1.70 ± 0.23(stat.) ± 0.08(syst.)) × 10-4. We measure the ratio of branching fractions R = B(γ(4S) → ηγ(1S))/B(γ(4S) → p+p-γ(1S)) = 2.07 ± 0.30(stat.) ± 0.11(syst.). We search for the decay γ(13D1,2) → ηγ(1S), but do not find significant evidence for such a transition. We also measure the initial state radiation production cross sections of the γ(2S, 3S) resonances and we find values compatible with the expected ones. Finally, the analysis of the γ(4S) → π+π-γ(1S) events shows indications for a resonant contribution due to the f0(980) meson. Copyright © 2017, The Authors. All rights reserved.

关键词： Bosons

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