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arXiv 2017年

作者： Acharya, S. Adam, J. Adamová, D. Adolfsson, J. Aggarwal, M.M. Aglieri Rinella, G. Agnello, M. Agrawal, N. Ahammed, Z. Ahmad, N. Ahn, S.U. Aiola, S. Akindinov, A. Al-Turany, M. Alam, S.N. Alba, J.L.B. Albuquerque, D.S.D. Aleksandrov, D. Alessandro, B. Alfaro Molina, R. Alici, A. Alkin, A. Alme, J. Alt, T. Altenkamper, L. Altsybeev, I. Alves Garcia Prado, C. Andrei, C. Andreou, D. Andrews, H.A. Andronic, A. Anguelov, V. Anson, C. Antičić, T. Antinori, F. Antonioli, P. Anwar, R. Aphecetche, L. Appelshäuser, H. Arcelli, S. Arnaldi, R. Arnold, O.W. Arsene, I.C. Arslandok, M. Audurier, B. Augustinus, A. Averbeck, R. Azmi, M.D. Badalà, A. Baek, Y.W. Bagnasco, S. Bailhache, R. Bala, R. Baldisseri, A. Ball, M. Baral, R.C. Barbano, A.M. Barbera, R. Barile, F. Barioglio, L. Barnaföldi, G.G. Barnby, L.S. Barret, V. Bartalini, P. Barth, K. Bartsch, E. Basile, M. Bastid, N. Basu, S. Batigne, G. Batyunya, B. Batzing, P.C. Bearden, I.G. Beck, H. Bedda, C. Behera, N.K. Belikov, I. Bellini, F. Bello Martinez, H. Bellwied, R. Beltran, L.G.E. Belyaev, V. Bencedi, G. Beole, S. Bercuci, A. Berdnikov, Y. Berenyi, D. Bertens, R.A. Berzano, D. Betev, L. Bhasin, A. Bhat, I.R. Bhati, A.K. Bhattacharjee, B. Bhom, J. Bianchi, A. Bianchi, L. Bianchi, N. Bianchin, C. Bielčík, J. Bielčíková, J. Bilandzic, A. Biro, G. Biswas, R. Biswas, S. Blair, J.T. Blau, D. Blume, C. Boca, G. Bock, F. Bogdanov, A. Boldizsár, L. Bombara, M. Bonomi, G. Bonora, M. Book, J. Borel, H. Borissov, A. Borri, M. Botta, E. Bourjau, C. Bratrud, L. Braun-Munzinger, P. Bregant, M. Broker, T.A. Broz, M. Brucken, E.J. Bruna, E. Bruno, G.E. Budnikov, D. Buesching, H. Bufalino, S. Buhler, P. Buncic, P. Busch, O. Buthelezi, Z. Butt, J.B. Buxton, J.T. Cabala, J. Caffarri, D. Caines, H. Caliva, A. Calvo Villar, E. Camerini, P. Capon, A.A. Carena, F. Carena, W. Carnesecchi, F. Castillo Castellanos, J. Castro, A.J. Casula, E.A.R. Ceballos Sanchez, C. Cerello, P. Dipartimento DET del Politecnico di Torino Turin Italy Georgia State University AtlantaGA United States M.V. Lomonosov Moscow State University D.V. Skobeltsyn Institute of Nuclear Physics Moscow Russia Department of Applied Physics Aligarh Muslim University Aligarh India Institute of Theoretical Physics University of Wroclaw Poland Foundation Yerevan Armenia Benemérita Universidad Autónoma de Puebla Puebla Mexico Bogolyubov Institute for Theoretical Physics Kiev Ukraine Kolkata India Budker Institute for Nuclear Physics Novosibirsk Russia California Polytechnic State University San Luis ObispoCA United States Central China Normal University Wuhan China Centre de Calcul de l’IN2P3 Villeurbanne Lyon France Havana Cuba Mexico City and Mérida Mexico Centro Fermi - Museo Storico della Fisica e Centro Studi e Ricerche "Enrico Fermi’ Rome Italy Chicago State University ChicagoIL United States China Institute of Atomic Energy Beijing China Islamabad Pakistan Department of Physics Aligarh Muslim University Aligarh India Department of Physics Ohio State University ColumbusOH United States Department of Physics Pusan National University Pusan Korea Republic of Department of Physics Sejong University Seoul Korea Republic of Department of Physics University of Oslo Oslo Norway Department of Physics and Technology University of Bergen Bergen Norway Dipartimento di Fisica dell’Università’La Sapienza’ and Sezione INFN Rome Italy Dipartimento di Fisica dell’Università and Sezione INFN Cagliari Italy Dipartimento di Fisica dell’Università Sezione INFN Trieste Italy Dipartimento di Fisica dell’Università and Sezione INFN Turin Italy Dipartimento di Fisica e Astronomia dell’Università Sezione INFN Bologna Italy Dipartimento di Fisica e Astronomia dell’Università Sezione INFN Catania Italy Dipartimento di Fisica e Astronomia dell’Università and Sezione INFN Padova Italy Dipartimento di Fisica ‘E.R. Caianiello’ dell’Università Gruppo Collegato I

An invariant differential cross section measurement of inclusive π 0 and η meson production at midrapidity in pp collisions at √s = 8 TeV was carried out by the ALICE experiment at the LHC. The spectra of π 0 and η mesons were measured in transverse momentum ranges of 0.3 T T 0 and AESSS for the η overestimate the cross sections of both neutral mesons, although such calculations agree with the measured η /π 0 ratio within uncertainties. The results were also compared with PYTHIA 8.2 predictions for which the Monash 2013 tune yields the best agreement with the measured neutral meson spectra. The measurements confirm a universal behavior of the η /π 0 ratio seen for NA27, PHENIX and ALICE data for pp collisions from √s = 27.5 GeV to √s = 8 TeV within experimental uncertainties. A relation between the π 0 and η production cross sections for pp collisions at √s = 8 TeV is given by mT scaling for pT > 3.5 GeV/c. However, a deviation from this empirical scaling rule is observed for transverse momenta below pT 0 ratio with a significance of 6.2σ . Copyright © 2017, The Authors. All rights reserved.

关键词： Bosons

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Constraining the magnitude of the Chiral Magnetic Effect with Event Shape Engineering in Pb–Pb collisions at √sNN= 2.76 TeV

arXiv

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arXiv 2017年

作者： Acharya, S. Adam, J. Adamová, D. Adolfsson, J. Aggarwal, M.M. Aglieri Rinella, G. Agnello, M. Agrawal, N. Ahammed, Z. Ahmad, N. Ahn, S.U. Aiola, S. Akindinov, A. Al-Turany, M. Alam, S.N. Albuquerque, D.S.D. Aleksandrov, D. Alessandro, B. Alfaro Molina, R. Alici, A. Alkin, A. Alme, J. Alt, T. Altenkamper, L. Altsybeev, I. Alves Garcia Prado, C. Andrei, C. Andreou, D. Andrews, H.A. Andronic, A. Anguelov, V. Anson, C. Antičić, T. Antinori, F. Antonioli, P. Anwar, R. Aphecetche, L. Appelshäuser, H. Arcelli, S. Arnaldi, R. Arnold, O.W. Arsene, I.C. Arslandok, M. Audurier, B. Augustinus, A. Averbeck, R. Azmi, M.D. Badalà, A. Baek, Y.W. Bagnasco, S. Bailhache, R. Bala, R. Baldisseri, A. Ball, M. Baral, R.C. Barbano, A.M. Barbera, R. Barile, F. Barioglio, L. Barnaföldi, G.G. Barnby, L.S. Barret, V. Bartalini, P. Barth, K. Bartsch, E. Basile, M. Bastid, N. Basu, S. Batigne, G. Batyunya, B. Batzing, P.C. Bazo Alba, J.L. Bearden, I.G. Beck, H. Bedda, C. Behera, N.K. Belikov, I. Bellini, F. Bello Martinez, H. Bellwied, R. Beltran, L.G.E. Belyaev, V. Bencedi, G. Beole, S. Bercuci, A. Berdnikov, Y. Berenyi, D. Bertens, R.A. Berzano, D. Betev, L. Bhasin, A. Bhat, I.R. Bhati, A.K. Bhattacharjee, B. Bhom, J. Bianchi, A. Bianchi, L. Bianchi, N. Bianchin, C. Bielčík, J. Bielčíková, J. Bilandzic, A. Biro, G. Biswas, R. Biswas, S. Blair, J.T. Blau, D. Blume, C. Boca, G. Bock, F. Bogdanov, A. Boldizsár, L. Bombara, M. Bonomi, G. Bonora, M. Book, J. Borel, H. Borissov, A. Borri, M. Botta, E. Bourjau, C. Bratrud, L. Braun-Munzinger, P. Bregant, M. Broker, T.A. Broz, M. Brucken, E.J. Bruna, E. Bruno, G.E. Budnikov, D. Buesching, H. Bufalino, S. Buhler, P. Buncic, P. Busch, O. Buthelezi, Z. Butt, J.B. Buxton, J.T. Cabala, J. Caffarri, D. Caines, H. Caliva, A. Calvo Villar, E. Camerini, P. Capon, A.A. Carena, F. Carena, W. Carnesecchi, F. Castillo Castellanos, J. Castro, A.J. Casula, E.A.R. Ceballos Sanchez, C. Cerello, P. Dipartimento DET del Politecnico di Torino Turin Italy Georgia State University AtlantaGA United States M.V. Lomonosov Moscow State University D.V. Skobeltsyn Institute of Nuclear Physics Moscow Russia Department of Applied Physics Aligarh Muslim University Aligarh India Institute of Theoretical Physics University of Wroclaw Poland Foundation Yerevan Armenia Benemérita Universidad Autónoma de Puebla Puebla Mexico Bogolyubov Institute for Theoretical Physics Kiev Ukraine Kolkata India Budker Institute for Nuclear Physics Novosibirsk Russia California Polytechnic State University San Luis ObispoCA United States Central China Normal University Wuhan China Centre de Calcul de l’IN2P3 Villeurbanne Lyon France Havana Cuba Madrid Spain Mexico City and Mérida Mexico Centro Fermi - Museo Storico della Fisica e Centro Studi e Ricerche "Enrico Fermi’ Rome Italy Chicago State University ChicagoIL United States China Institute of Atomic Energy Beijing China Islamabad Pakistan Departamento de Física de Partículas IGFAE Universidad de Santiago de Compostela Santiago de Compostela Spain Department of Physics Aligarh Muslim University Aligarh India Department of Physics Ohio State University ColumbusOH United States Department of Physics Pusan National University Pusan Korea Republic of Department of Physics Sejong University Seoul Korea Republic of Department of Physics University of Oslo Oslo Norway Department of Physics and Technology University of Bergen Bergen Norway Dipartimento di Fisica dell’Università’La Sapienza’ and Sezione INFN Rome Italy Dipartimento di Fisica dell’Università and Sezione INFN Cagliari Italy Dipartimento di Fisica dell’Università Sezione INFN Trieste Italy Dipartimento di Fisica dell’Università and Sezione INFN Turin Italy Dipartimento di Fisica e Astronomia dell’Università Sezione INFN Bologna Italy Dipartimento di Fisica e Astronomia dell’Università Sezione INFN Catania Italy Dipartimento di Fisica e Astron

In ultrarelativistic heavy-ion collisions, the event-by-event variation of the elliptic flow v2 reflects fluctuations in the shape of the initial state of the system. This allows to select events with the same centrality but different initial geometry. This selection technique, Event Shape Engineering, has been used in the analysis of charge-dependent two- and three-particle correlations in Pb–Pb collisions at √sNN = 2.76 TeV. The two-particle correlator hcos(α −β)i, calculated for different combinations of charges α and β, is almost independent of v2 (for a given centrality), while the three-particle correlator hcos(α + β −2Ψ2)i scales almost linearly both with the event v2 and charged-particle pseudorapidity density. The charge dependence of the three-particle correlator is often interpreted as evidence for the Chiral Magnetic Effect (CME), a parity violating effect of the strong interaction. However, its measured dependence on v2 points to a large non-CME contribution to the correlator. Comparing the results with Monte Carlo calculations including a magnetic field due to the spectators, the upper limit of the CME signal contribution to the three-particle correlator in the 10–50% centrality interval is found to be 26–33% at 95% confidence level. Copyright © 2017, The Authors. All rights reserved.

关键词： Heavy ions

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J/ψ elliptic flow in Pb–Pb collisions at √sNN = 5.02 TeV

arXiv

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arXiv 2017年

作者： Acharya, S. Adamová, D. Adolfsson, J. Aggarwal, M.M. Aglieri Rinella, G. Agnello, M. Agrawal, N. Ahammed, Z. Ahn, S.U. Aiola, S. Akindinov, A. Al-Turany, M. Alam, S.N. Albuquerque, D.S.D. Aleksandrov, D. Alessandro, B. Alfaro Molina, R. Ali, Y. Alici, A. Alkin, A. Alme, J. Alt, T. Altenkamper, L. Altsybeev, I. Alves Garcia Prado, C. Andrei, C. Andreou, D. Andrews, H.A. Andronic, A. Anguelov, V. Anson, C. Antičić, T. Antinori, F. Antonioli, P. Anwar, R. Aphecetche, L. Appelshäuser, H. Arcelli, S. Arnaldi, R. Arnold, O.W. Arsene, I.C. Arslandok, M. Audurier, B. Augustinus, A. Averbeck, R. Azmi, M.D. Badalà, A. Baek, Y.W. Bagnasco, S. Bailhache, R. Bala, R. Baldisseri, A. Ball, M. Baral, R.C. Barbano, A.M. Barbera, R. Barile, F. Barioglio, L. Barnaföldi, G.G. Barnby, L.S. Barret, V. Bartalini, P. Barth, K. Bartsch, E. Bastid, N. Basu, S. Batigne, G. Batyunya, B. Batzing, P.C. Bazo Alba, J.L. Bearden, I.G. Beck, H. Bedda, C. Behera, N.K. Belikov, I. Bellini, F. Bello Martinez, H. Bellwied, R. Beltran, L.G.E. Belyaev, V. Bencedi, G. Beole, S. Bercuci, A. Berdnikov, Y. Berenyi, D. Bertens, R.A. Berzano, D. Betev, L. Bhasin, A. Bhat, I.R. Bhattacharjee, B. Bhom, J. Bianchi, A. Bianchi, L. Bianchi, N. Bianchin, C. Bielčík, J. Bielčíková, J. Bilandzic, A. Biro, G. Biswas, R. Biswas, S. Blair, J.T. Blau, D. Blume, C. Boca, G. Bock, F. Bogdanov, A. Boldizsár, L. Bombara, M. Bonomi, G. Bonora, M. Book, J. Borel, H. Borissov, A. Borri, M. Botta, E. Bourjau, C. Bratrud, L. Braun-Munzinger, P. Bregant, M. Broker, T.A. Broz, M. Brucken, E.J. Bruna, E. Bruno, G.E. Budnikov, D. Buesching, H. Bufalino, S. Buhler, P. Buncic, P. Busch, O. Buthelezi, Z. Butt, J.B. Buxton, J.T. Cabala, J. Caffarri, D. Caines, H. Caliva, A. Calvo Villar, E. Camerini, P. Capon, A.A. Carena, F. Carena, W. Carnesecchi, F. Castillo Castellanos, J. Castro, A.J. Casula, E.A.R. Ceballos Sanchez, C. Chandra, S. Chang, B. Chang, W. Dipartimento DET del Politecnico di Torino Turin Italy M.V. Lomonosov Moscow State University D.V. Skobeltsyn Institute of Nuclear Physics Moscow Russia Department of Applied Physics Aligarh Muslim University Aligarh India Institute of Theoretical Physics University of Wroclaw Poland Foundation Yerevan Armenia Benemérita Universidad Autónoma de Puebla Puebla Mexico Bogolyubov Institute for Theoretical Physics Kiev Ukraine Kolkata India Budker Institute for Nuclear Physics Novosibirsk Russia California Polytechnic State University San Luis ObispoCA United States Central China Normal University Wuhan China Centre de Calcul de l’IN2P3 Villeurbanne Lyon France Havana Cuba Madrid Spain Mexico City and Mérida Mexico Centro Fermi - Museo Storico della Fisica e Centro Studi e Ricerche "Enrico Fermi’ Rome Italy Chicago State University ChicagoIL United States China Institute of Atomic Energy Beijing China Islamabad Pakistan Departamento de Física de Partículas IGFAE Universidad de Santiago de Compostela Santiago de Compostela Spain Department of Physics Aligarh Muslim University Aligarh India Department of Physics Ohio State University ColumbusOH United States Department of Physics Pusan National University Pusan Korea Republic of Department of Physics Sejong University Seoul Korea Republic of Department of Physics University of Oslo Oslo Norway Department of Physics and Technology University of Bergen Bergen Norway Dipartimento di Fisica dell’Università’La Sapienza’ and Sezione INFN Rome Italy Dipartimento di Fisica dell’Università and Sezione INFN Cagliari Italy Dipartimento di Fisica dell’Università Sezione INFN Trieste Italy Dipartimento di Fisica dell’Università and Sezione INFN Turin Italy Dipartimento di Fisica e Astronomia dell’Università Sezione INFN Bologna Italy Dipartimento di Fisica e Astronomia dell’Università Sezione INFN Catania Italy Dipartimento di Fisica e Astronomia dell’Università and Sezione INFN Padova Ital

We report a precise measurement of the J/ψ elliptic flow in Pb–Pb collisions at √sNN = 5.02 TeV with the ALICE detector at the LHC. The J/ψ mesons are reconstructed at mid-rapidity (|y| 2 of the J/ψ is studied as a function of transverse momentum and centrality. A positive v2 is observed in the transverse momentum range 2 T NN = 2.76 TeV in semi-central collisions. At mid-rapidity, the J/ψ v2 is investigated as a function of transverse momentum in semi-central collisions and found to be in agreement with the measurements at forward rapidity. These results are compared to transport model calculations. The comparison supports the idea that at low pT the elliptic flow of the J/ψ originates from the thermalization of charm quarks in the deconfined medium, but suggests that additional mechanisms might be missing in the models. Copyright © 2017, The Authors. All rights reserved.

关键词： Momentum

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Corrigendum to“First demonstration of improving laser propagation inside the spherical hohlraums by using the cylindrical laser entrance hole”[Matter Radiation Extremes 1(1)(2016)2-7]

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Matter and Radiation at Extremes 2016年第2期1卷 133-133页

作者： Wenyi Huo Zhichao Li Dong Yang Ke Lan Jie Liu Guoli Ren Sanwei Li Zhiwen Yang Liang Guo Lifei Hou Xuefei Xie Yukun Li Keli Deng Zheng Yuan Xiayu Zhan Guanghui Yuan Haijun Zhang Baibin Jiang Lizhen Huang Kai Du Runchang Zhao Ping Li Wei Wang Jingqin Su Yongkun Ding Xiantu He Weiyan Zhang Institute of Applied Physics and Computational Mathematics Beijing 100088China Research Center of Laser Fusion Chinese Academy of Engineering PhysicsMianyang 621900China Center for Applied Physics and Technology Peking UniversityBeijing 100871China Collaborative Innovation Center of IFSA Shanghai Jiao Tong UniversityShanghai 200240China China Academy of Engineering Physics Mianyang 621900China

Corrigendum Text:On page 2 of this letter,there is a misprint in the *** unit of the geometrical dimension of the spherical hohlraums on this page should always be“mm”rather than“mm”,*** the second paragraph,“…with 800 J per beam at 0.35 mm…”should be“…with 800 J per beam at 0.35 mm…”,“The slit of 400 mm width is parallel…”should be“The slit of 400 mm width is parallel…”,“The laser focal diameter is about 500 mm…”should be“The laser focal diameter is about 500 mm…”;in the third paragraph,“…we take 850 mm as the radius…”should be“…we take 850 mm as the radius…”,“The LEH radius R_(L) is 400 mm…”should be“The LEH radius R_(L) is 400 mm…”,“…the radius of the cylindrical LEH outer ring is taken as 1.5 R_(L)=600 mm”should be“…the radius of the cylindrical LEH outer ring is taken as 1.5 R_(L)=600 mm”.This mistake does not affect any of the main results of the original letter.

关键词： laser cylindrical radius

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Nonperturbative Leakage Elimination Operators and Control of a Three-Level System

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Physical Review Letters 2015年第19期114卷 190502-190502页

作者： Jun Jing Lian-Ao Wu Mark Byrd J. Q. You Ting Yu Zhao-Ming Wang Institute of Atomic and Molecular Physics and Jilin Provincial Key Laboratory of Applied Atomic and Molecular Spectroscopy Jilin University Changchun 130012 Jilin China Department of Theoretical Physics and History of Science The Basque Country University (EHU/UPV) P.O. Box 644 48080 Bilbao Spain Ikerbasque Basque Foundation for Science 48011 Bilbao Spain Physics Department Southern Illinois University Carbondale Illinois 62901-4401 USA Beijing Computational Science Research Center Beijing 100084 China Center for Controlled Quantum Systems and Department of Physics and Engineering Physics Stevens Institute of Technology Hoboken New Jersey 07030 USA Department of Physics Ocean University of China Qingdao 266100 China

Dynamical decoupling operations have been shown to reduce errors in quantum information processing. Leakage from an encoded subspace to the rest of the system space is a particularly serious problem for which leakage elimination operators (LEOs) were introduced. Here we provide an analysis of nonideal pulses, rather than the well-understood idealization or bang-bang controls. Under realistic conditions, we show that these controls will provide the same protection from errors as idealized controls. Our work indicates that the effectiveness of LEOs depends on the integral of the pulse sequence in the time domain, which has been missing because of the idealization of pulse sequences. Our results are applied to a three-level system for the nitrogen-vacancy centers under an external magnetic field and are illustrated by the fidelity dynamics of LEO sequences, ranging from regular rectangular pulses, random pulses, and even disordered (noisy) pulses.

关键词： LEAKAGE PERTURBATIVE quantum chromodynamics RECTANGULAR plates (Engineering) INFORMATION processing DECOUPLING (mathematics)

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Follow up of GW170817 and its electromagnetic counterpart by Australian-led observing programs

arXiv

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arXiv 2017年

作者： Andreoni, I. Ackley, K. Cooke, J. Acharyya, A. Allison, J.R. Anderson, G.E. Ashley, M.C.B. Baade, D. Bailes, M. Bannister, K. Beardsley, A. Bessell, M.S. Bian, F. Bland, P.A. Boer, M. Booler, T. Brandeker, A. Brown, I.S. Buckley, D.A.H. Chang, S.-W. Coward, D.M. Crawford, S. Crisp, H. Crosse, B. Cucchiara, A. Cupák, M. de Gois, J.S. Deller, A. Devillepoix, H.A.R. Dobie, D. Elmer, E. Emrich, D. Farah, W. Farrell, T.J. Franzen, T. Gaensler, B.M. Galloway, D.K. Gendre, B. Giblin, T. Goobar, A. Green, J. Hancock, P.J. Hartig, B.A.D. Howell, E.J. Horsley, L. Hotan, A. Howie, R.M. Hu, L. Hu, Y. James, C.W. Johnston, S. Johnston-Hollitt, M. Kaplan, D.L. Kasliwal, M. Keane, E.F. Kenney, D. Klotz, A. Lau, R. Laugier, R. Lenc, E. Li, X. Liang, E. Lidman, C. Luvaul, L.C. Lynch, C. Ma, B. Macpherson, D. Mao, J. McClelland, D.E. McCully, C. Möller, A. Morales, M.F. Morris, D. Murphy, T. Noysena, K. Onken, C.A. Orange, N.B. Oslowski, S. Pallot, D. Paxman, J. Potter, S.B. Pritchard, T. Raja, W. Ridden-Harper, R. Romero-Colmenero, E. Sadler, E.M. Sansom, E.K. Scalzo, R.A. Schmidt, B.P. Scott, S.M. Seghouani, N. Shang, Z. Shannon, R.M. Shao, L. Shara, M.M. Sharp, R. Sokolowski, M. Sollerman, J. Staff, J. Steele, K. Sun, T. Suntzeff, N.B. Tao, C. Tingay, S. Towner, M.C. Thierry, P. Trott, C. Tucker, B.E. Väisänen, P. Krishnan, V. Venkatraman Walker, M. Wang, L. Wang, X. Wayth, R. Whiting, M. Williams, A. Williams, T. Wolf, C. Wu, C. Wu, X. Yang, J. Yuan, X. Zhang, H. Zhou, J. Zovaro, H. Centre for Astrophysics and Supercomputing Swinburne University of Technology PO Box 218 H29 HawthornVIC3122 Australia Australian Astronomical Observatory 105 Delhi Rd North RydeNSW2113 Australia Monash Centre of Astrophysics Monash University VIC3800 Australia School of Physics & Astronomy Monash University VIC3800 Australia Research School of Astronomy and Astrophysics Australian National University CanberraACT2611 Australia Sydney Institute for Astronomy School of Physics University of Sydney NSW2006 Australia International Centre for Radio Astronomy Research Curtin University BentleyWA6102 Australia School of Physics University of New South Wales NSW2052 Australia Karl-Schwarzschild-Str. 2 Garching bei München85748 Germany ATNF CSIRO Astronomy and Space Science PO Box 76 EppingNSW1710 Australia School of Earth and Space Exploration Arizona State University TempeAZ85287 United States Department of Applied Geology Curtin University GPO Box U1987 PerthWA6845 Australia Artémis/Observatoire de la Cote d’Azur/ CNRS Boulevard de l’Observatoire CS 34229 NICE Cedex 4F 06304 France Department of Astronomy Stockholm University Albanova StockholmSE 10691 Sweden Department of Physics University of Wisconsin–Milwaukee MilwaukeeWI53201 United States South African Astronomical Observatory PO Box 9 Observatory7935 South Africa School of Physics University of Western Australia CrawleyWA6009 Australia University of the Virgin Islands 2 John Brewer’s Bay 00802 St ThomasUS Virgin Islands United States School of Physics and Astronomy University of Nottingham Nottingham United Kingdom ATNF CSIRO Astronomy and Space Science 26 Dick Perry Avenue KensingtonWA6152 Australia Dunlap Institute for Astronomy and Astrophysics University of Toronto ONM5S 3H4 Canada Department of Physics U.S. Air Force Academy 2354 Fairchild Drive CO 80840 United States The Oskar Klein Centre Department of Physics Stockholm University Albanova Stockh

The discovery of the first electromagnetic counterpart to a gravitational wave signal has generated follow-up observations by over 50 facilities world-wide, ushering in the new era of multi-messenger astronomy. In this paper, we present follow-up observations of the gravitational wave event GW170817 and its electromagnetic counterpart SSS17a/DLT17ck (IAU label AT2017gfo) by 14 Australian telescopes and partner observatories as part of Australian-based and Australian-led research programs. We report early- to late-time multi-wavelength observations, including optical imaging and spectroscopy, mid-infrared imaging, radio imaging, and searches for fast radio bursts. Our optical spectra reveal that the transient source afterglow cooled from approximately 6400K to 2100K over a 7-day period and produced no significant optical emission lines. The spectral profiles, cooling rate, and photometric light curves are consistent with the expected outburst and subsequent processes of a binary neutron star merger. Star formation in the host galaxy probably ceased at least a Gyr ago, although there is evidence for a galaxy merger. Binary pulsars with short (100 Myr) decay times are therefore unlikely progenitors, but pulsars like PSR B1534+12 with its 2.7 Gyr coalescence time could produce such a merger. The displacement (∼2.2 kpc) of the binary star system from the centre of the main galaxy is not unusual for stars in the host galaxy or stars originating in the merging galaxy, and therefore any constraints on the kick velocity imparted to the progenitor are poor. Copyright © 2017, The Authors. All rights reserved.

关键词： Gravity waves

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11th German Conference on Chemoinformatics (GCC 2015) Abstracts

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JOURNAL OF CHEMINFORMATICS 2016年第SUPPL 1期8卷 1-27页

作者： [Anonymous] GDCh-CIC Division Associated Board Member Beilstein-Institut zur Förderung der Chemischen Wissenschaften Trakehner Str. 7-9 60487 Frankfurt Germany. ufechner@beilstein-institut.de. Division Medicinal Chemistry Amsterdam Institute for Molecules Medicines and Systems (AIMMS) VU University Amsterdam The Netherlands. Centre for Bioinformatics Uni Hamburg Bundesstr. 43 20146 Hamburg Germany. Sanofi-Aventis Deutschland GmbH 65926 Frankfurt am Main Germany. stefan.guessregen@***. Sanofi-Aventis Deutschland GmbH 65926 Frankfurt am Main Germany. GlaxoSmithKline Stevenage SG1 2NY UK. nicola.j.richmond@***. Discngine Paris 75011 France. Organisch-Chemisches Institut Westfälische Wilhelms-Universität Münster Germany. marwin.segler@wwu.de. Organisch-Chemisches Institut Westfälische Wilhelms-Universität Münster Germany. Bundeskriminalamt Wiesbaden Central Analytics II 65173 Wiesbaden Germany. Department of Chemistry and Biochemistry University of California Santa Barbara CA 93111 USA. shea@chem.ucsb.edu. Department of Chemistry and Biochemistry University of California Santa Barbara CA 93111 USA. Chemistry Department Ludwig-Maximilians-Universität München Butenandtstr. 7 81377 Munich Germany. Inorganic Chemistry and Center for Nanointegration University of Duisburg-Essen Essen Germany. CAM-D Technologies Essen Germany. Institute for Bioinformatics and Chemoinformatics Westphalian University of Applied Sciences Recklinghausen Germany. Institute for Bioinformatics and Chemoinformatics Westphalian University of Applied Sciences Recklinghausen Germany. achim.zielesny@w-hs.de. Leiden University Leiden Netherlands. j.fraaije@chem.leidenuniv.nl. Culgi BV Berlin Germany. Physikalische Chemie III TU Dortmund 44227 Dortmund Germany. stefan.kast@tu-dortmund.de. Centre for Molecular Informatics Department of Chemistry University of Cambridge Lensfield Road Cambridge CB2 1EW United Kingdom. kcb27@cam.ac.uk. Centre for Molecular Informatics Department of Chemistry

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Anisotropic Flow of Charged Particles in Pb-Pb Collisions at sNN=5.02 TeV

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Physical Review Letters 2016年第13期116卷 132302-132302页

作者： J. Adam D. Adamová M. M. Aggarwal G. Aglieri Rinella M. Agnello N. Agrawal Z. Ahammed S. Ahmad S. U. Ahn S. Aiola A. Akindinov S. N. Alam D. S. D. Albuquerque D. Aleksandrov B. Alessandro D. Alexandre R. Alfaro Molina A. Alici A. Alkin J. R. M. Almaraz J. Alme T. Alt S. Altinpinar I. Altsybeev C. Alves Garcia Prado C. Andrei A. Andronic V. Anguelov T. Antičić F. Antinori P. Antonioli L. Aphecetche H. Appelshäuser S. Arcelli R. Arnaldi O. W. Arnold I. C. Arsene M. Arslandok B. Audurier A. Augustinus R. Averbeck M. D. Azmi A. Badalà Y. W. Baek S. Bagnasco R. Bailhache R. Bala S. Balasubramanian A. Baldisseri R. C. Baral A. M. Barbano R. Barbera F. Barile G. G. Barnaföldi L. S. Barnby V. Barret P. Bartalini K. Barth J. Bartke E. Bartsch M. Basile N. Bastid S. Basu B. Bathen G. Batigne A. Batista Camejo B. Batyunya P. C. Batzing I. G. Bearden H. Beck C. Bedda N. K. Behera I. Belikov F. Bellini H. Bello Martinez R. Bellwied R. Belmont E. Belmont-Moreno V. Belyaev P. Benacek G. Bencedi S. Beole I. Berceanu A. Bercuci Y. Berdnikov D. Berenyi R. A. Bertens D. Berzano L. Betev A. Bhasin I. R. Bhat A. K. Bhati B. Bhattacharjee J. Bhom L. Bianchi N. Bianchi C. Bianchin J. Bielčík J. Bielčíková A. Bilandzic G. Biro R. Biswas S. Biswas S. Bjelogrlic J. T. Blair D. Blau C. Blume F. Bock A. Bogdanov H. Bøggild L. Boldizsár M. Bombara J. Book H. Borel A. Borissov M. Borri F. Bossú E. Botta C. Bourjau P. Braun-Munzinger M. Bregant T. Breitner T. A. Broker T. A. Browning M. Broz E. J. Brucken E. Bruna G. E. Bruno D. Budnikov H. Buesching S. Bufalino P. Buncic O. Busch Z. Buthelezi J. B. Butt J. T. Buxton J. Cabala D. Caffarri X. Cai H. Caines L. Calero Diaz A. Caliva E. Calvo Villar P. Camerini F. Carena W. Carena F. Carnesecchi J. Castillo Castellanos A. J. Castro E. A. R. Casula C. Ceballos Sanchez J. Cepila P. Cerello J. Cerkala B. Chang S. Chapeland M. Chartier J. L. Charvet S. Chattopadhyay A. Chauvin V. Chelnokov M. Cherney C. Cheshkov B. Cheynis V. Chibante Barroso D. D. Chinellato S. Cho P. Chochula K. Choi M. Chojnacki S. Faculty of Nuclear Sciences and Physical Engineering Czech Technical University in Prague Prague Czech Republic Nuclear Physics Institute Academy of Sciences of the Czech Republic Řež u Prahy Czech Republic Physics Department Panjab University Chandigarh India European Organization for Nuclear Research (CERN) Geneva Switzerland Sezione INFN Turin Italy Indian Institute of Technology Bombay (IIT) Mumbai India Variable Energy Cyclotron Centre Kolkata India Department of Physics Aligarh Muslim University Aligarh India Korea Institute of Science and Technology Information Daejeon South Korea Yale University New Haven Connecticut USA Institute for Theoretical and Experimental Physics Moscow Russia Universidade Estadual de Campinas (UNICAMP) Campinas Brazil National Research Centre Kurchatov Institute Moscow Russia School of Physics and Astronomy University of Birmingham Birmingham United Kingdom Instituto de Física Universidad Nacional Autónoma de México Mexico City Mexico Sezione INFN Bologna Italy Centro Fermi—Museo Storico della Fisica e Centro Studi e Ricerche “Enrico Fermi ” Rome Italy Bogolyubov Institute for Theoretical Physics Kiev Ukraine Universidad Autónoma de Sinaloa Culiacán Mexico Faculty of Engineering Bergen University College Bergen Norway Frankfurt Institute for Advanced Studies Johann Wolfgang Goethe-Universität Frankfurt Frankfurt Germany Department of Physics and Technology University of Bergen Bergen Norway V. Fock Institute for Physics St. Petersburg State University St. Petersburg Russia Universidade de São Paulo (USP) São Paulo Brazil National Institute for Physics and Nuclear Engineering Bucharest Romania Research Division and ExtreMe Matter Institute EMMI GSI Helmholtzzentrum für Schwerionenforschung Darmstadt Germany Physikalisches Institut Ruprecht-Karls-Universität Heidelberg Heidelberg Germany Rudjer Bošković Institute Zagreb Croatia Sezione INFN Padova Italy SUBATECH Ecole des Mines de Nantes Université de Nantes C

We report the first results of elliptic (v2), triangular (v3), and quadrangular (v4) flow of charged particles in Pb-Pb collisions at a center-of-mass energy per nucleon pair of sNN=5.02 TeV with the ALICE detector at the CERN Large Hadron Collider. The measurements are performed in the central pseudorapidity region |η|<0.8 and for the transverse momentum range 0.2

关键词： Collective flow Relativistic heavy-ion collisions Hydrodynamic models

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Physical Review Letters 2016年第18期117卷 182301-182301页

作者： J. Adam D. Adamová M. M. Aggarwal G. Aglieri Rinella M. Agnello N. Agrawal Z. Ahammed S. Ahmad S. U. Ahn S. Aiola A. Akindinov S. N. Alam D. S. D. Albuquerque D. Aleksandrov B. Alessandro D. Alexandre R. Alfaro Molina A. Alici A. Alkin J. R. M. Almaraz J. Alme T. Alt S. Altinpinar I. Altsybeev C. Alves Garcia Prado C. Andrei A. Andronic V. Anguelov T. Antičić F. Antinori P. Antonioli L. Aphecetche H. Appelshäuser S. Arcelli R. Arnaldi O. W. Arnold I. C. Arsene M. Arslandok B. Audurier A. Augustinus R. Averbeck M. D. Azmi A. Badalà Y. W. Baek S. Bagnasco R. Bailhache R. Bala S. Balasubramanian A. Baldisseri R. C. Baral A. M. Barbano R. Barbera F. Barile G. G. Barnaföldi L. S. Barnby V. Barret P. Bartalini K. Barth J. Bartke E. Bartsch M. Basile N. Bastid S. Basu B. Bathen G. Batigne A. Batista Camejo B. Batyunya P. C. Batzing I. G. Bearden H. Beck C. Bedda N. K. Behera I. Belikov F. Bellini H. Bello Martinez R. Bellwied R. Belmont E. Belmont-Moreno L. G. E. Beltran V. Belyaev G. Bencedi S. Beole I. Berceanu A. Bercuci Y. Berdnikov D. Berenyi R. A. Bertens D. Berzano L. Betev A. Bhasin I. R. Bhat A. K. Bhati B. Bhattacharjee J. Bhom L. Bianchi N. Bianchi C. Bianchin J. Bielčík J. Bielčíková A. Bilandzic G. Biro R. Biswas S. Biswas S. Bjelogrlic J. T. Blair D. Blau C. Blume F. Bock A. Bogdanov H. Bøggild L. Boldizsár M. Bombara J. Book H. Borel A. Borissov M. Borri F. Bossú E. Botta C. Bourjau P. Braun-Munzinger M. Bregant T. Breitner T. A. Broker T. A. Browning M. Broz E. J. Brucken E. Bruna G. E. Bruno D. Budnikov H. Buesching S. Bufalino P. Buncic O. Busch Z. Buthelezi J. B. Butt J. T. Buxton J. Cabala D. Caffarri X. Cai H. Caines L. Calero Diaz A. Caliva E. Calvo Villar P. Camerini F. Carena W. Carena F. Carnesecchi J. Castillo Castellanos A. J. Castro E. A. R. Casula C. Ceballos Sanchez J. Cepila P. Cerello J. Cerkala B. Chang S. Chapeland M. Chartier J. L. Charvet S. Chattopadhyay A. Chauvin V. Chelnokov M. Cherney C. Cheshkov B. Cheynis V. Chibante Barroso D. D. Chinellato S. Cho P. Chochula K. Choi M. Chojna Faculty of Nuclear Sciences and Physical Engineering Czech Technical University in Prague Prague Czech Republic Nuclear Physics Institute Academy of Sciences of the Czech Republic Řežu Prahy Czech Republic Physics Department Panjab University Chandigarh India European Organization for Nuclear Research (CERN) Geneva Switzerland Sezione INFN Turin Italy Indian Institute of Technology Bombay (IIT) Mumbai India Variable Energy Cyclotron Centre Kolkata India Department of Physics Aligarh Muslim University Aligarh India Korea Institute of Science and Technology Information Daejeon South Korea Yale University New Haven Connecticut USA Institute for Theoretical and Experimental Physics Moscow Russia Universidade Estadual de Campinas (UNICAMP) Campinas Brazil National Research Centre Kurchatov Institute Moscow Russia School of Physics and Astronomy University of Birmingham Birmingham United Kingdom Instituto de Física Universidad Nacional Autónoma de México Mexico City Mexico Centro Fermi—Museo Storico della Fisica e Centro Studi e Ricerche “Enrico Fermi” Rome Italy Sezione INFN Bologna Italy Bogolyubov Institute for Theoretical Physics Kiev Ukraine Universidad Autónoma de Sinaloa Culiacán Mexico Department of Physics and Technology University of Bergen Bergen Norway Faculty of Engineering Bergen University College Bergen Norway Frankfurt Institute for Advanced Studies Johann Wolfgang Goethe-Universität Frankfurt Frankfurt Germany V. Fock Institute for Physics St. Petersburg State University St. Petersburg Russia Universidade de S ao Paulo (USP) Sao Paulo Brazil National Institute for Physics and Nuclear Engineering Bucharest Romania Research Division and ExtreMe Matter Institute EMMI GSI Helmholtzzentrum für Schwerionenforschung Darmstadt Germany Physikalisches Institut Ruprecht-Karls-Universität Heidelberg Heidelberg Germany Rudjer Bošković Institute Zagreb Croatia Sezione INFN Padova Italy SUBATECH Ecole des Mines de Nantes Université de Nantes C

We report the measurements of correlations between event-by-event fluctuations of amplitudes of anisotropic flow harmonics in nucleus-nucleus collisions, obtained for the first time using a new analysis method based on multiparticle cumulants in mixed harmonics. This novel method is robust against systematic biases originating from nonflow effects and by construction any dependence on symmetry planes is eliminated. We demonstrate that correlations of flow harmonics exhibit a better sensitivity to medium properties than the individual flow harmonics. The new measurements are performed in Pb-Pb collisions at the center-of-mass energy per nucleon pair of sNN=2.76 TeV by the ALICE experiment at the Large Hadron Collider. The centrality dependence of correlation between event-by-event fluctuations of the elliptic v2 and quadrangular v4 flow harmonics, as well as of anticorrelation between v2 and triangular v3 flow harmonics are presented. The results cover two different regimes of the initial state configurations: geometry dominated (in midcentral collisions) and fluctuation dominated (in the most central collisions). Comparisons are made to predictions from Monte Carlo Glauber, viscous hydrodynamics, ampt, and hijing models. Together with the existing measurements of the individual flow harmonics the presented results provide further constraints on the initial conditions and the transport properties of the system produced in heavy-ion collisions.

关键词： Collective flow Particle & resonance production Particle correlations & fluctuations Relativistic heavy-ion collisions

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Measurement of an Excess in the Yield of J/ψ at Very Low pT in Pb–Pb Collisions at sNN=2.76 TeV

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Physical Review Letters 2016年第22期116卷 222301-222301页

作者： J. Adam D. Adamová M. M. Aggarwal G. Aglieri Rinella M. Agnello N. Agrawal Z. Ahammed S. U. Ahn S. Aiola A. Akindinov S. N. Alam D. Aleksandrov B. Alessandro D. Alexandre R. Alfaro Molina A. Alici A. Alkin J. R. M. Almaraz J. Alme T. Alt S. Altinpinar I. Altsybeev C. Alves Garcia Prado C. Andrei A. Andronic V. Anguelov J. Anielski T. Antičić F. Antinori P. Antonioli L. Aphecetche H. Appelshäuser S. Arcelli R. Arnaldi O. W. Arnold I. C. Arsene M. Arslandok B. Audurier A. Augustinus R. Averbeck M. D. Azmi A. Badalà Y. W. Baek S. Bagnasco R. Bailhache R. Bala A. Baldisseri R. C. Baral A. M. Barbano R. Barbera F. Barile G. G. Barnaföldi L. S. Barnby V. Barret P. Bartalini K. Barth J. Bartke E. Bartsch M. Basile N. Bastid S. Basu B. Bathen G. Batigne A. Batista Camejo B. Batyunya P. C. Batzing I. G. Bearden H. Beck C. Bedda N. K. Behera I. Belikov F. Bellini H. Bello Martinez R. Bellwied R. Belmont E. Belmont-Moreno V. Belyaev G. Bencedi S. Beole I. Berceanu A. Bercuci Y. Berdnikov D. Berenyi R. A. Bertens D. Berzano L. Betev A. Bhasin I. R. Bhat A. K. Bhati B. Bhattacharjee J. Bhom L. Bianchi N. Bianchi C. Bianchin J. Bielčík J. Bielčíková A. Bilandzic R. Biswas S. Biswas S. Bjelogrlic J. T. Blair D. Blau C. Blume F. Bock A. Bogdanov H. Bøggild L. Boldizsár M. Bombara J. Book H. Borel A. Borissov M. Borri F. Bossú E. Botta S. Böttger C. Bourjau P. Braun-Munzinger M. Bregant T. Breitner T. A. Broker T. A. Browning M. Broz E. J. Brucken E. Bruna G. E. Bruno D. Budnikov H. Buesching S. Bufalino P. Buncic O. Busch Z. Buthelezi J. B. Butt J. T. Buxton D. Caffarri X. Cai H. Caines L. Calero Diaz A. Caliva E. Calvo Villar P. Camerini F. Carena W. Carena F. Carnesecchi J. Castillo Castellanos A. J. Castro E. A. R. Casula C. Ceballos Sanchez J. Cepila P. Cerello J. Cerkala B. Chang S. Chapeland M. Chartier J. L. Charvet S. Chattopadhyay V. Chelnokov M. Cherney C. Cheshkov B. Cheynis V. Chibante Barroso D. D. Chinellato S. Cho P. Chochula K. Choi M. Chojnacki S. Choudhury P. Christakoglou C. H. Christensen P. Christiansen T. C Faculty of Nuclear Sciences and Physical Engineering Czech Technical University in Prague Prague Czech Republic Nuclear Physics Institute Academy of Sciences of the Czech Republic Řež u Prahy Czech Republic Physics Department Panjab University Chandigarh India European Organization for Nuclear Research (CERN) Geneva Switzerland Sezione INFN Turin Italy Indian Institute of Technology Bombay (IIT) Mumbai India Variable Energy Cyclotron Centre Kolkata India Korea Institute of Science and Technology Information Daejeon South Korea Yale University New Haven Connecticut USA Institute for Theoretical and Experimental Physics Moscow Russia National Research Centre Kurchatov Institute Moscow Russia School of Physics and Astronomy University of Birmingham Birmingham United Kingdom Instituto de Física Universidad Nacional Autónoma de México Mexico City Mexico Centro Fermi—Museo Storico della Fisica e Centro Studi e Ricerche “Enrico Fermi ” Rome Italy Sezione INFN Bologna Italy Bogolyubov Institute for Theoretical Physics Kiev Ukraine Universidad Autónoma de Sinaloa Culiacán Mexico Faculty of Engineering Bergen University College Bergen Norway Frankfurt Institute for Advanced Studies Johann Wolfgang Goethe-Universität Frankfurt Frankfurt Germany Department of Physics and Technology University of Bergen Bergen Norway V. Fock Institute for Physics St. Petersburg State University St. Petersburg Russia Universidade de S ao Paulo (USP) S ao Paulo Brazil National Institute for Physics and Nuclear Engineering Bucharest Romania Research Division and ExtreMe Matter Institute EMMI GSI Helmholtzzentrum für Schwerionenforschung Darmstadt Germany Physikalisches Institut Ruprecht-Karls-Universität Heidelberg Heidelberg Germany Institut für Kernphysik Westfälische Wilhelms-Universität Münster Münster Germany Rudjer Bošković Institute Zagreb Croatia Sezione INFN Padova Italy SUBATECH Ecole des Mines de Nantes Université de Nantes CNRS-IN2P3 Nantes France Institut für K

We report on the first measurement of an excess in the yield of J/ψ at very low transverse momentum (pT<0.3 GeV/c) in peripheral hadronic Pb-Pb collisions at sNN=2.76 TeV, performed by ALICE at the CERN LHC. Rem... 详细信息

关键词： Particle & resonance production Relativistic heavy-ion collisions Hydrodynamic models

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