检索结果-内蒙古大学图书馆

Improved Upper Limit on the Neutrino Mass from a Direct Kinematic Method by KATRIN

Physical Review Letters 2019年第22期123卷 221802-221802页

作者： M. Aker K. Altenmüller M. Arenz M. Babutzka J. Barrett S. Bauer M. Beck A. Beglarian J. Behrens T. Bergmann U. Besserer K. Blaum F. Block S. Bobien K. Bokeloh J. Bonn B. Bornschein L. Bornschein H. Bouquet T. Brunst T. S. Caldwell L. La Cascio S. Chilingaryan W. Choi T. J. Corona K. Debowski M. Deffert M. Descher P. J. Doe O. Dragoun G. Drexlin J. A. Dunmore S. Dyba F. Edzards L. Eisenblätter K. Eitel E. Ellinger R. Engel S. Enomoto M. Erhard D. Eversheim M. Fedkevych A. Felden S. Fischer B. Flatt J. A. Formaggio F. M. Fränkle G. B. Franklin H. Frankrone F. Friedel D. Fuchs A. Fulst D. Furse K. Gauda H. Gemmeke W. Gil F. Glück S. Görhardt S. Groh S. Grohmann R. Grössle R. Gumbsheimer M. Ha Minh M. Hackenjos V. Hannen F. Harms J. Hartmann N. Haußmann F. Heizmann K. Helbing S. Hickford D. Hilk B. Hillen D. Hillesheimer D. Hinz T. Höhn B. Holzapfel S. Holzmann T. Houdy M. A. Howe A. Huber T. M. James A. Jansen A. Kaboth C. Karl O. Kazachenko J. Kellerer N. Kernert L. Kippenbrock M. Kleesiek M. Klein C. Köhler L. Köllenberger A. Kopmann M. Korzeczek A. Kosmider A. Kovalík B. Krasch M. Kraus H. Krause L. Kuckert B. Kuffner N. Kunka T. Lasserre T. L. Le O. Lebeda M. Leber B. Lehnert J. Letnev F. Leven S. Lichter V. M. Lobashev A. Lokhov M. Machatschek E. Malcherek K. Müller M. Mark A. Marsteller E. L. Martin C. Melzer A. Menshikov S. Mertens L. I. Minter S. Mirz B. Monreal P. I. Morales Guzmán U. Naumann W. Ndeke H. Neumann S. Niemes M. Noe N. S. Oblath H.-W. Ortjohann A. Osipowicz B. Ostrick E. Otten D. S. Parno D. G. Phillips, II P. Plischke A. Pollithy A. W. P. Poon J. Pouryamout M. Prall F. Priester M. Röllig C. Röttele P. C.-O. Ranitzsch O. Rest R. Rinderspacher R. G. H. Robertson C. Rodenbeck P. Rohr Ch. Roll S. Rupp M. Ryšavý R. Sack A. Saenz P. Schäfer L. Schimpf K. Schlösser M. Schlösser L. Schlüter H. Schön K. Schönung M. Schrank B. Schulz J. Schwarz H. Seitz-Moskaliuk W. Seller V. Sibille D. Siegmann A. Skasyrskaya M. Slezák A. Špalek F. Spanier M. Steidl N. Steinbrink M. Sturm M. Suesser M. Sun D. Tcherniak Institute for Nuclear Physics (IKP) Karlsruhe Institute of Technology (KIT) Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany Institute for Technical Physics (ITEP) Karlsruhe Institute of Technology (KIT) Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany Max-Planck-Institut für Physik Föhringer Ring 6 80805 München Germany Technische Universität München James-Franck-Straße 1 85748 Garching Germany IRFU (DPhP & APC) CEA Université Paris-Saclay 91191 Gif-sur-Yvette France Helmholtz-Institut für Strahlen- und Kernphysik Rheinische Friedrich-Wilhelms-Universität Bonn Nussallee 14-16 53115 Bonn Germany Institute of Experimental Particle Physics (ETP) Karlsruhe Institute of Technology (KIT) Wolfgang-Gaede-Straße 1 76131 Karlsruhe Germany Laboratory for Nuclear Science Massachusetts Institute of Technology 77 Massachusetts Avenue Cambridge Massachusetts 02139 USA Institut für Kernphysik Westfälische Wilhelms-Universität Münster Wilhelm-Klemm-Straße 9 48149 Münster Germany Institut für Physik Johannes-Gutenberg-Universität Mainz 55099 Mainz Germany Institute for Data Processing and Electronics (IPE) Karlsruhe Institute of Technology (KIT) Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany Max-Planck-Institut für Kernphysik Saupfercheckweg 1 69117 Heidelberg Germany Department of Physics and Astronomy University of North Carolina Chapel Hill North Carolina 27599 USA Triangle Universities Nuclear Laboratory Durham North Carolina 27708 USA Department of Physics Faculty of Mathematics and Natural Sciences University of Wuppertal Gaußstraße 20 42119 Wuppertal Germany Center for Experimental Nuclear Physics and Astrophysics and Department of Physics University of Washington Seattle Washington 98195 USA Nuclear Physics Institute of the CAS v. v. i. CZ-250 68 Řež Czech Republic Department of Physics Carnegie Mellon University Pittsburgh Pennsylvania 15213 USA Institute for Nuclear Research of Russian Acade

We report on the neutrino mass measurement result from the first four-week science run of the Karlsruhe Tritium Neutrino experiment KATRIN in spring 2019. Beta-decay electrons from a high-purity gaseous molecular tritium source are energy analyzed by a high-resolution MAC-E filter. A fit of the integrated electron spectrum over a narrow interval around the kinematic end point at 18.57 keV gives an effective neutrino mass square value of (−1.0−1.1+0.9) eV2. From this, we derive an upper limit of 1.1 eV (90% confidence level) on the absolute mass scale of neutrinos. This value coincides with the KATRIN sensitivity. It improves upon previous mass limits from kinematic measurements by almost a factor of 2 and provides model-independent input to cosmological studies of structure formation.

关键词： Neutrinos

来源：评论

学校读者我要写书评

暂无评论

Erratum: Real-time digital trigger system for GTAF-II at CSNS Back-n white neutron source

引用

Journal of Instrumentation 2022年第8期17卷 E08006-E08006页

作者： L. Xie P. Cao T. Yu X. Tang Z. Jiang Q. An Xi. Huang C. Li J. Li M. Gu Q. Zhang G. Luan X. Ruan G. He J. Ren J. Bai J. Bao Y. Bao H. Chen Q. Chen Y. Chen Z. Chen Z. Cui R. Fan C. Feng K. Gao X. Gao C. Han Z. Han Y. He Y. Hong Y. Hu H. Huang H. Jiang W. Jiang H. Jing L. Kang B. Li Q. Li X. Li Y. Li J. Liu R. Liu S. Liu X. Liu Z. Long C. Ning M. Niu B. Qi Z. Ren Z. Song K. Sun Z. Sun Z. Tan J. Tang B. Tian L. Wang P. Wang Z. Wang Z. Wen X. Wu X. Yang Y. Yang H. Yi L. Yu Y. Yu G. Zhang L. Zhang X. Zhang Y. Zhang Z. Zhang L. Zhou Z. Zhou K. Zhu State Key Laboratory of Particle Detection and Electronics University of Science and Technology of China Hefei China Department of Modern Physics University of Science and Technology of China Hefei China Institute of High Energy Physics Chinese Academy of Sciences (CAS) Beijing China State Key Laboratory of Particle Detection and Electronics Institute of High Energy Physics Chinese Academy of Sciences Beijing China Key Laboratory of Nuclear Data China Institute of Atomic Energy Beijing China Institute of Nuclear Physics and Chemistry China Academy of Engineering Physics Mianyang China Spallation Neutron Source Science Center Dongguan China State Key Laboratory of Nuclear Physics and Technology School of Physics Peking University Beijing China Northwest Institute of Nuclear Technology Xi'an China University of Chinese Academy of Sciences Beijing China

来源：评论

学校读者我要写书评

暂无评论

Design and commissioning of a 600 L Time Projection Chamber with Microbulk Micromegas

arXiv

引用

arXiv 2018年

作者： Lin, Heng Calvet, Denis Chen, Lei Chen, Xun Dafni, Theopisti Fu, Changbo Galan, Javier Han, Ke Hu, Shouyang Huo, Yikai Irastorza, Igor G. Ji, Xiangdong Li, Xiaomei Li, Xinglong Liu, Jianglai Mirallas, Hector Neyret, Damien Ni, Kaixiang Qiao, Hao Ren, Xiangxiang Wang, Shaobo Wang, Siguang Yang, Yong Yuan, Ying Zhang, Tao Zhao, Li INPAC and School of Physics and Astronomy Shanghai Jiao Tong University Shanghai Laboratory for Particle Physics and Cosmology 800 Dongchuan Rd. Shanghai200240 China IRFU CEA Université Paris-Saclay Gif-sur-YvetteF-91191 France Science and Technology on Nuclear Data Laboratory China Institute of Atomic Energy 1 Sanqiang Rd. Beijing102413 China Grupo de Física Nuclear y Astropartículas Departamento de Física Teórica Universidad de Zaragoza C/ Pedro Cerbuna 12 Zaragoza50009 Spain Department of Physics University of Maryland 82 Regents Dr. College ParkMD20742 United States School of Physics Peking University 5 Yiheyuan Rd. Beijing100871 China SJTU-Paris Tech Elite Institute of Technology Shanghai Jiao Tong University 800 Dongchuan Rd. Shanghai200240 China

We report the design, construction, and initial commissioning results of a large high pressure gaseous Time Projection Chamber (TPC) with Micromegas modules for charge readout. The detector vessel has an inner volume of about 600 L and an active volume of 270 L. At 10 bar operating pressure, the active volume contains about 20 kg of xenon gas and can image charged particle tracks. Drift electrons are collected by the charge readout plane, which accommodates a tessellation of seven Micromegas modules. Each of the Micromegas covers a square of 20 cm by 20 cm. A new type of Microbulk Micromegas is chosen for this application due to its good gain uniformity and low radioactive contamination. Initial commissioning results with 1 Micromegas module running with 1 bar argon and isobutane gas mixture and 5 bar xenon and trimethylamine (TMA) gas mixture are reported. We also recorded extended background tracks from cosmic ray events and highlighted the unique tracking feature of this gaseous TPC. Copyright © 2018, The Authors. All rights reserved.

关键词： Gas mixtures

来源：评论

学校读者我要写书评

暂无评论

Analysis methods for the first KATRIN neutrino-mass measurement

引用

Physical Review D 2021年第1期104卷 012005-012005页

作者： M. Aker K. Altenmüller A. Beglarian J. Behrens A. Berlev U. Besserer B. Bieringer K. Blaum F. Block B. Bornschein L. Bornschein M. Böttcher T. Brunst T. S. Caldwell L. La Cascio S. Chilingaryan W. Choi D. Díaz Barrero K. Debowski M. Deffert M. Descher P. J. Doe O. Dragoun G. Drexlin S. Dyba F. Edzards K. Eitel E. Ellinger R. Engel S. Enomoto M. Fedkevych A. Felden J. A. Formaggio F. M. Fränkle G. B. Franklin F. Friedel A. Fulst K. Gauda W. Gil F. Glück R. Grössle R. Gumbsheimer T. Höhn V. Hannen N. Haußmann K. Helbing S. Hickford R. Hiller D. Hillesheimer D. Hinz T. Houdy A. Huber A. Jansen L. Köllenberger C. Karl J. Kellerer L. Kippenbrock M. Klein A. Kopmann M. Korzeczek A. Kovalík B. Krasch H. Krause T. Lasserre T. L. Le O. Lebeda B. Lehnert A. Lokhov J. M. Lopez Poyato K. Müller M. Machatschek E. Malcherek M. Mark A. Marsteller E. L. Martin C. Melzer S. Mertens S. Niemes P. Oelpmann A. Osipowicz D. S. Parno A. W. P. Poon F. Priester M. Röllig C. Röttele O. Rest R. G. H. Robertson C. Rodenbeck M. Ryšavý R. Sack A. Saenz A. Schaller (née Pollithy) P. Schäfer L. Schimpf K. Schlösser M. Schlösser L. Schlüter M. Schrank B. Schulz M. Šefčík H. Seitz-Moskaliuk V. Sibille D. Siegmann M. Slezák F. Spanier M. Steidl M. Sturm M. Sun H. H. Telle T. Thümmler L. A. Thorne N. Titov I. Tkachev N. Trost D. Vénos K. Valerius A. P. Vizcaya Hernández S. Wüstling M. Weber C. Weinheimer C. Weiss S. Welte J. Wendel J. F. Wilkerson J. Wolf W. Xu Y.-R. Yen S. Zadoroghny G. Zeller Tritium Laboratory Karlsruhe (TLK) Karlsruhe Institute of Technology (KIT) Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany Technische Universität München James-Franck-Str. 1 85748 Garching Germany IRFU (DPhP & APC) CEA Université Paris-Saclay 91191 Gif-sur-Yvette France Institute for Data Processing and Electronics (IPE) Karlsruhe Institute of Technology (KIT) Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany Institute of Experimental Particle Physics (ETP) Karlsruhe Institute of Technology (KIT) Wolfgang-Gaede-Str. 1 76131 Karlsruhe Germany Institute for Astroparticle Physics (IAP) Karlsruhe Institute of Technology (KIT) Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany Institute for Nuclear Research of Russian Academy of Sciences 60th October Anniversary Prospect 7a 117312 Moscow Russia Institut für Kernphysik Westfälische Wilhelms-Universität Münster Wilhelm-Klemm-Str. 9 48149 Münster Germany Max-Planck-Institut für Kernphysik Saupfercheckweg 1 69117 Heidelberg Germany Max-Planck-Institut für Physik Föhringer Ring 6 80805 München Germany Department of Physics and Astronomy University of North Carolina Chapel Hill North Carolina 27599 USA Triangle Universities Nuclear Laboratory Durham North Carolina 27708 USA Departamento de Química Física Aplicada Universidad Autonoma de Madrid Campus de Cantoblanco 28049 Madrid Spain Department of Physics Faculty of Mathematics and Natural Sciences University of Wuppertal Gaußstr. 20 42119 Wuppertal Germany Center for Experimental Nuclear Physics and Astrophysics and Department of Physics University of Washington Seattle Washington 98195 USA Nuclear Physics Institute of the CAS v. v. i. CZ-250 68 Řež Czech Republic Laboratory for Nuclear Science Massachusetts Institute of Technology 77 Massachusetts Ave Cambridge Massachusetts 02139 USA Department of Physics Carnegie Mellon University Pittsburgh Pennsylvania 15213 USA Institute for Nuclear and Parti

We report on the dataset, data handling, and detailed analysis techniques of the first neutrino-mass measurement by the Karlsruhe Tritium Neutrino (KATRIN) experiment, which probes the absolute neutrino-mass scale via the β-decay kinematics of molecular tritium. The source is highly pure, cryogenic T2 gas. The β electrons are guided along magnetic field lines toward a high-resolution, integrating spectrometer for energy analysis. A silicon detector counts β electrons above the energy threshold of the spectrometer, so that a scan of the thresholds produces a precise measurement of the high-energy spectral tail. After detailed theoretical studies, simulations, and commissioning measurements, extending from the molecular final-state distribution to inelastic scattering in the source to subtleties of the electromagnetic fields, our independent, blind analyses allow us to set an upper limit of 1.1 eV on the neutrino-mass scale at a 90% confidence level. This first result, based on a few weeks of running at a reduced source intensity and dominated by statistical uncertainty, improves on prior limits by nearly a factor of two. This result establishes an analysis framework for future KATRIN measurements, and provides important input to both particle theory and cosmology.

关键词： Neutrinos

来源：评论

学校读者我要写书评

暂无评论

Measurement of the higher-order anisotropic flow coefficients for identified hadrons in Au + Au collisions at sNN=200GeV

引用

Physical Review C 2016年第5期93卷 051902(R)-051902(R)页

作者： A. Adare S. Afanasiev C. Aidala N. N. Ajitanand Y. Akiba H. Al-Bataineh J. Alexander K. Aoki Y. Aramaki E. T. Atomssa R. Averbeck T. C. Awes B. Azmoun V. Babintsev M. Bai G. Baksay L. Baksay K. N. Barish B. Bassalleck A. T. Basye S. Bathe V. Baublis C. Baumann A. Bazilevsky S. Belikov R. Belmont R. Bennett A. Berdnikov Y. Berdnikov A. A. Bickley J. S. Bok K. Boyle M. L. Brooks H. Buesching V. Bumazhnov G. Bunce S. Butsyk C. M. Camacho S. Campbell C.-H. Chen C. Y. Chi M. Chiu I. J. Choi R. K. Choudhury P. Christiansen T. Chujo P. Chung O. Chvala V. Cianciolo Z. Citron B. A. Cole M. Connors P. Constantin M. Csanád T. Csörgő T. Dahms S. Dairaku I. Danchev K. Das A. Datta G. David A. Denisov A. Deshpande E. J. Desmond O. Dietzsch A. Dion M. Donadelli O. Drapier A. Drees K. A. Drees J. M. Durham A. Durum D. Dutta S. Edwards Y. V. Efremenko F. Ellinghaus T. Engelmore A. Enokizono H. En'yo S. Esumi B. Fadem D. E. Fields M. Finger M. Finger, Jr. F. Fleuret S. L. Fokin Z. Fraenkel J. E. Frantz A. Franz A. D. Frawley K. Fujiwara Y. Fukao T. Fusayasu I. Garishvili A. Glenn H. Gong M. Gonin Y. Goto R. Granier de Cassagnac N. Grau S. V. Greene M. Grosse Perdekamp Y. Gu T. Gunji H.-Å. Gustafsson J. S. Haggerty K. I. Hahn H. Hamagaki J. Hamblen R. Han J. Hanks E. P. Hartouni E. Haslum R. Hayano X. He M. Heffner T. K. Hemmick T. Hester J. C. Hill M. Hohlmann W. Holzmann K. Homma B. Hong T. Horaguchi D. Hornback S. Huang T. Ichihara R. Ichimiya J. Ide Y. Ikeda K. Imai M. Inaba D. Isenhower M. Ishihara T. Isobe M. Issah A. Isupov D. Ivanischev B. V. Jacak J. Jia J. Jin B. M. Johnson K. S. Joo D. Jouan D. S. Jumper F. Kajihara S. Kametani N. Kamihara J. Kamin J. H. Kang J. Kapustinsky K. Karatsu D. Kawall M. Kawashima A. V. Kazantsev T. Kempel A. Khanzadeev K. M. Kijima B. I. Kim D. H. Kim D. J. Kim E. Kim E.-J. Kim S. H. Kim Y.-J. Kim E. Kinney K. Kiriluk Á. Kiss E. Kistenev L. Kochenda B. Komkov M. Konno J. Koster D. Kotchetkov A. Kozlov A. Král A. Kravitz G. J. Kunde K. Kurita M. Kurosawa Y. Kwon G. S. Kyle R. Lacey Y. S. Lai J. University of Colorado Boulder Colorado 80309 USA Joint Institute for Nuclear Research 141980 Dubna Moscow Region Russia Department of Physics University of Massachusetts Amherst Massachusetts 01003-9337 USA Department of Physics University of Michigan Ann Arbor Michigan 48109-1040 USA Department of Chemistry Stony Brook University SUNY Stony Brook New York 11794-3400 USA RIKEN Nishina Center for Accelerator-Based Science Wako Saitama 351-0198 Japan RIKEN BNL Research Center Brookhaven National Laboratory Upton New York 11973-5000 USA New Mexico State University Las Cruces New Mexico 88003 USA Kyoto University Kyoto 606-8502 Japan Center for Nuclear Study Graduate School of Science University of Tokyo 7-3-1 Hongo Bunkyo Tokyo 113-0033 Japan Laboratoire Leprince-Ringuet Ecole Polytechnique CNRS-IN2P3 Route de Saclay F-91128 Palaiseau France Department of Physics and Astronomy Stony Brook University SUNY Stony Brook New York 11794-3800 USA Oak Ridge National Laboratory Oak Ridge Tennessee 37831 USA Physics Department Brookhaven National Laboratory Upton New York 11973-5000 USA IHEP Protvino State Research Center of Russian Federation Institute for High Energy Physics Protvino 142281 Russia Collider-Accelerator Department Brookhaven National Laboratory Upton New York 11973-5000 USA Florida Institute of Technology Melbourne Florida 32901 USA University of California-Riverside Riverside California 92521 USA University of New Mexico Albuquerque New Mexico 87131 USA Abilene Christian University Abilene Texas 79699 USA Baruch College City University of New York New York New York 10010 USA PNPI Petersburg Nuclear Physics Institute Gatchina Leningrad Region 188300 Russia Institut für Kernphysik University of Muenster D-48149 Muenster Germany Vanderbilt University Nashville Tennessee 37235 USA Saint Petersburg State Polytechnic University St. Petersburg 195251 Russia Yonsei University IPAP Seoul 120-749 Korea Los Alamos National Lab

Measurements of the anisotropic flow coefficients v2{Ψ2},v3{Ψ3},v4{Ψ4}, and v4{Ψ2} for identified particles (π±,K±, and p+p¯) at midrapidity, obtained relative to the event planes Ψm at forward rapidities in Au + Au collisions at sNN=200GeV, are presented as a function of collision centrality and particle transverse momenta pT. The vn coefficients show characteristic patterns consistent with hydrodynamical expansion of the matter produced in the collisions. For each harmonic n, a modified valence quark-number Nq scaling [plotting vn{Ψm}/(Nq)n/2 versus transverse kinetic energies (KET)/Nq] is observed to yield a single curve for all the measured particle species for a broad range of KET. A simultaneous blast-wave model fit to the observed vn{Ψm}(pT) coefficients and published particle spectra identifies radial flow anisotropies ρn{Ψm} and spatial eccentricities sn{Ψm} at freeze-out. These are generally smaller than the initial-state participant-plane geometric eccentricities ɛn{ΨmPP} as also observed in the final eccentricity from quantum interferometry measurements with respect to the event plane.

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

来源：评论

学校读者我要写书评

暂无评论

The γ-ray strength function for thallium isotopes relevant to the 205Pb-205Tl chronometry

arXiv

引用

arXiv 2018年

作者： Utsunomiya, H. Renstrøm, T. Tveten, G.M. Goriely, S. Ari-Izumi, T. Filipescu, D. Kaur, J. Lui, Y.-W. Luo, W. Miyamoto, S. Larsen, A.C. Hilaire, S. Péru, S. Koning, A.J. Konan University Department of Physics 8-9-1 Okamoto Higashinada Japan Department of Physics University of Oslo OsloN-0316 Norway Institut d'Astronomie et d'Astrophysique Université Libre de Bruxelles Campus de la Plaine CP-226 Brussels1050 Belgium 407 Atomistilor Str. P.O. Box MG6 Bucharest-Magurele Romania 30 Reactorului Bucharest-Magurele077125 Romania Cyclotron Institute Texas A& M University College StationTX77843 United States School of Nuclear Science and Technology University of South China Hengyang421001 China Laboratory of Advanced Science and Technology for Industry University of Hyogo 3-1-2 Kouto Kamigori Ako-gun Hyogo678-1205 Japan CEA DAM DIF ArpajonF-91297 France Nuclear Data Section International Atomic Energy Agency ViennaA-1400 Austria

Photoneutron cross sections were measured for 203Tl and 205Tl at energies between the one- and two-neutron thresholds using quasi-monochromatic γ-ray beams produced in laser Compton-scattering at the NewSUBARU synchrotron radiation facility. Our new measurement results in cross sections significantly different from the previously reported bremsstrahlung experiment, leading to rather different GDR parameters, in particular to lower GDR peak energies and higher peak cross sections. The photoneutron data are used to constrain the γ-ray strength function on the basis of the Hartree-Fock-Bogolyubov plus quasi-particle random phase approximation using the Gogny D1M interaction. Supplementing the experimentally constrained γ-ray strength function with the zero-limit E1 and M1 contributions for the de-excitation mode, we estimate the Maxwellian-averaged cross section for the s-process branching-point nucleus 204Tl in the context of the 205Pb - 205Tl chronometry. Copyright © 2018, The Authors. All rights reserved.

关键词： Approximation algorithms

来源：评论

学校读者我要写书评

暂无评论

Photoneutron cross sections for Ni isotopes: Toward understanding (n,γ) cross sections relevant to weak s-process nucleosynthesis

引用

Physical Review C 2018年第5期98卷 054619-054619页

作者： H. Utsunomiya T. Renstrøm G. M. Tveten S. Goriely S. Katayama T. Ari-izumi D. Takenaka D. Symochko B. V. Kheswa V. W. Ingeberg T. Glodariu Y.-W. Lui S. Miyamoto A. C. Larsen J. E. Midtbø A. Görgen S. Siem L. Crespo Campo M. Guttormsen S. Hilaire S. Péru A. J. Koning Department of Physics Konan University Okamoto 8-9-1 Higashinada Kobe 658-8501 Japan Department of Physics University of Oslo N-0316 Oslo Norway Institut d'Astronomie et d'Astrophysique Université Libre de Bruxelles Campus de la Plaine CP-226 1050 Brussels Belgium Technische Universität Darmstadt Karolinenplatz 5 64289 Darmstadt Germany Department of Applied Physics and Engineering Mathematics University of Johannesburg Doornfontein Johannesburg 2028 South Africa Extreme Light Infrastructure Nuclear Physics “Horia Hulubei” National Institute for Physics and Nuclear Engineering (IFIN-HH) 30 Reactorului 077125 Bucharest-Magurele Romania Cyclotron Institute Texas A&M University College Station Texas 77843 USA Laboratory of Advanced Science and Technology for Industry University of Hyogo 3-1-2 Kouto Kamigori Ako-gun Hyogo 678-1205 Japan CEA DAM DIF F-91297 Arpajon France Nuclear Data Section International Atomic Energy Agency A-1400 Vienna Austria

Photoneutron cross sections were measured for Ni58,Ni60,Ni61, and Ni64 at energies between the one-neutron and two-neutron thresholds using quasimonochromatic γ-ray beams produced in laser Compton scattering at the NewSUBARU synchrotron radiation facility. These photoneutron data are used to extract the γ-ray strength function above the neutron threshold, complementing the information obtained by the Oslo method below the threshold. We discuss radiative neutron-capture cross sections and the Maxwellian-averaged cross sections for Ni isotopes including Ni63, a branching point nucleus along the weak s-process path. The cross sections are calculated with the experimentally constrained γ-ray strength functions from the Hartree-Fock-Bogolyubov plus quasiparticle–random-phase approximation based on the Gogny D1M interaction for both E1 and M1 components and supplemented with the M1 upbend.

关键词： Energy levels & level densities nuclear astrophysics nuclear reactions Photonuclear reactions 59 ≤ A ≤ 89

来源：评论

学校读者我要写书评

暂无评论

Erratum to: Measurement of the neutron total cross sections of aluminum at the back-n white neutron source of CSNS

引用

The European Physical Journal A 2021年第8期57卷 1-1页

作者： Liu, Xingyan Yang, Yiwei Liu, Rong Wen, Zhongwei Wen, Jie Han, Zijie Chen, Yonghao Jing, Hantao Yi, Han Bao, Jie Ren, Zhizhou An, Qi Bai, Huaiyong Cao, Ping Chen, Qiping Cheng, Pinjing Cui, Zengqi Fan, Ruirui Feng, Changqing Gu, Minhao Guo, Fengqin Han, Changcai He, Guozhu He, Yongcheng He, Yuefeng Huang, Hanxiong Huang, Weiling Huang, Xiru Ji, Xiaolu Ji, Xuyang Jiang, Haoyu Jiang, Wei Kang, Ling Kang, Mingtao Li, Bo Li, Lun Li, Qiang Li, Xiao Li, Yang Liu, Shubin Luan, Guangyuan Ma, Yinglin Ning, Changjun Qi, Binbin Ren, Jie Ruan, Xichao Song, Zhaohui Sun, Hong Sun, Xiaoyang Sun, Zhijia Tan, Zhixin Tang, Hongqing Tang, Jingyu Wang, Pengcheng Wang, Qi Wang, Taofeng Wang, Yanfeng Wang, Zhaohui Wang, Zheng Wu, Qingbiao Wu, Xiaoguang Wu, Xuan Xie, Likun Yu, Li Yu, Tao Yu, Yongji Zhang, Guohui Zhang, Jing Zhang, Linhao Zhang, Liying Zhang, Qingmin Zhang, Qiwei Zhang, Xianpeng Zhang, Yuliang Zhang, Zhiyong Zhao, Yingtan Zhou, Liang Zhou, Zuying Zhu, Danyang Zhu, Kejun Zhu, Peng Institute of Nuclear Physics and Chemistry China Academy of Engineering Physics Mianyang China Institute of High Energy Physics Chinese Academy of Sciences (CAS) Beijing China Spallation Neutron Source Science Center Dongguan China Key Laboratory of Nuclear Data China Institute of Atomic Energy Beijing China State Key Laboratory of Particle Detection and Electronics Beijing China Department of Modern Physics University of Science and Technology of China Hefei China State Key Laboratory of Nuclear Physics and Technology School of Physics Peking University Beijing China University of South China Hengyang China Northwest Institute of Nuclear Technology Xi’an China Department of Engineering and Applied Physics University of Science and Technology of China Hefei China School of Physics Beihang University Beijing China Xi’an Jiaotong University Xi’an China

来源：评论

学校读者我要写书评

暂无评论

Search for Lorentz-invariance violation with the first KATRIN data

引用

Physical Review D 2023年第8期107卷 082005-082005页

作者： M. Aker D. Batzler A. Beglarian J. Behrens A. Berlev U. Besserer B. Bieringer F. Block S. Bobien B. Bornschein L. Bornschein M. Böttcher T. Brunst T. S. Caldwell R. M. D. Carney S. Chilingaryan W. Choi K. Debowski M. Descher D. Díaz Barrero P. J. Doe O. Dragoun G. Drexlin F. Edzards K. Eitel E. Ellinger R. Engel S. Enomoto A. Felden J. A. Formaggio F. M. Fränkle G. B. Franklin F. Friedel A. Fulst K. Gauda A. S. Gavin W. Gil F. Glück R. Grössle R. Gumbsheimer V. Hannen N. Haußmann K. Helbing S. Hickford R. Hiller D. Hillesheimer D. Hinz T. Höhn T. Houdy A. Huber A. Jansen C. Karl J. Kellerer M. Kleifges M. Klein C. Köhler L. Köllenberger A. Kopmann M. Korzeczek A. Kovalík B. Krasch H. Krause L. La Cascio T. Lasserre T. L. Le O. Lebeda B. Lehnert A. Lokhov M. Machatschek E. Malcherek M. Mark A. Marsteller E. L. Martin C. Melzer S. Mertens J. Mostafa K. Müller H. Neumann S. Niemes P. Oelpmann D. S. Parno A. W. P. Poon J. M. L. Poyato F. Priester J. Ráliš S. Ramachandran R. G. H. Robertson W. Rodejohann C. Rodenbeck M. Röllig C. Röttele M. Ryšavý R. Sack A. Saenz R. Salomon P. Schäfer L. Schimpf M. Schlösser K. Schlösser L. Schlüter S. Schneidewind M. Schrank A. Schwemmer M. Šefčík V. Sibille D. Siegmann M. Slezák F. Spanier M. Steidl M. Sturm H. H. Telle L. A. Thorne T. Thümmler N. Titov I. Tkachev K. Urban K. Valerius D. Vénos A. P. Vizcaya Hernández C. Weinheimer S. Welte J. Wendel M. Wetter J. Wickles C. Wiesinger J. F. Wilkerson J. Wolf S. Wüstling J. Wydra W. Xu S. Zadoroghny G. Zeller Institute for Astroparticle Physics (IAP) Karlsruhe Institute of Technology (KIT) Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany Institute for Data Processing and Electronics (IPE) Karlsruhe Institute of Technology (KIT) Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany Institute for Nuclear Research of Russian Academy of Sciences 60th October Anniversary Prospect 7a 117312 Moscow Russia Institute for Nuclear Physics University of Münster Wilhelm-Klemm-Str. 9 48149 Münster Germany Institute of Experimental Particle Physics (ETP) Karlsruhe Institute of Technology (KIT) Wolfgang-Gaede-Str. 1 76131 Karlsruhe Germany Institute for Technical Physics (ITEP) Karlsruhe Institute of Technology (KIT) Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany Technische Universität München James-Franck-Str. 1 85748 Garching Germany Max-Planck-Institut für Physik Föhringer Ring 6 80805 München Germany Department of Physics and Astronomy University of North Carolina Chapel Hill North Carolina 27599 USA Triangle Universities Nuclear Laboratory Durham North Carolina 27708 USA Institute for Nuclear and Particle Astrophysics and Nuclear Science Division Lawrence Berkeley National Laboratory Berkeley California 94720 USA Department of Physics Faculty of Mathematics and Natural Sciences University of Wuppertal Gaußtraße 20 42119 Wuppertal Germany Departamento de Química Física Aplicada Universidad Autonoma de Madrid Campus de Cantoblanco 28049 Madrid Spain Center for Experimental Nuclear Physics and Astrophysics and Department of Physics University of Washington Seattle Washington 98195 USA Nuclear Physics Institute Czech Academy of Sciences 25068 Řež Czech Republic Laboratory for Nuclear Science Massachusetts Institute of Technology 77 Massachusetts Ave Cambridge Massachusetts 02139 USA Department of Physics Carnegie Mellon University Pittsburgh Pennsylvania 15213 USA IRFU (DPhP & APC) CEA Université Paris-Saclay

Some extensions of the Standard Model of particle physics allow for Lorentz invariance and charge-parity-time invariance violations. In the neutrino sector strong constraints have been set by neutrino-oscillation and time-of-flight experiments. However, some Lorentz-invariance-violating parameters are not accessible via these probes. In this work, we focus on the parameters (aof(3))00, (aof(3))10, and (aof(3))11 which would manifest themselves in a nonisotropic β-decaying source as a sidereal oscillation and an overall shift of the spectral endpoint. Based on the data of the first scientific run of the KATRIN experiment, we set the first 90% confidence-level limit on |(aof(3))11| of <0.9×10−6 GeV to 3.7×10−6 GeV, depending on the phase. Moreover, we derive new constraints on (aof(3))00 and (aof(3))10.

关键词： Particle astrophysics Neutrinos Lorentz symmetry Particle properties Spectroscopy

来源：评论

学校读者我要写书评

暂无评论

Erratum to: Neutron energy spectrum measurement of the Back-n white neutron source at CSNS

引用

The European Physical Journal A 2019年第8期55卷 1-1页

作者： Chen, Yonghao Luan, Guangyuan Bao, Jie Jing, Hantao Zhang, Liying An, Qi Bai, Huaiyong Cao, Ping Chen, Qiping Cheng, Pinjing Cui, Zengqi Fan, Ruirui Feng, Changqing Gu, Minhao Guo, Fengqin Han, Changcai Han, Zijie He, Guozhu He, Yongcheng He, Yuefeng Huang, Hanxiong Huang, Weiling Huang, Xiru Ji, Xiaolu Ji, Xuyang Jiang, Haoyu Jiang, Wei Kang, Ling Kang, Mingtao Li, Bo Li, Lun Li, Qiang Li, Xiao Li, Yang Liu, Rong Liu, Shubin Liu, Xingyan Ma, Yinglin Ning, Changjun Qi, Binbin Ren, Jie Ruan, Xichao Song, Zhaohui Sun, Hong Sun, Xiaoyang Sun, Zhijia Tan, Zhixin Tang, Hongqing Tang, Jingyu Wang, Pengcheng Wang, Qi Wang, Taofeng Wang, Yanfeng Wang, Zhaohui Wang, Zheng Wen, Jie Wen, Zhongwei Wu, Qingbiao Wu, Xiaoguang Wu, Xuan Xie, Likun Yang, Yiwei Yi, Han Yu, Li Yu, Tao Yu, Yongji Zhang, Guohui Zhang, Jing Zhang, Linhao Zhang, Qingmin Zhang, Qiwei Zhang, Xianpeng Zhang, Yuliang Zhang, Zhiyong Zhao, Yingtan Zhou, Liang Zhou, Zuying Zhu, Danyang Zhu, Kejun Zhu, Peng Institute of High Energy Physics Chinese Academy of Sciences (CAS) Beijing China Dongguan Neutron Science Center Dongguan China Key Laboratory of Nuclear Data China Institute of Atomic Energy Beijing China State Key Laboratory of Particle Detection and Electronics University of Science and Technology of China Hefei China Department of Modern Physics University of Science and Technology of China Hefei China State Key Laboratory of Nuclear Physics and Technology School of Physics Peking University Beijing China Institute of Nuclear Physics and Chemistry China Academy of Engineering Physics Mianyang China University of South China Hengyang China State Key Laboratory of Particle Detection and Electronics Institute of High Energy Physics CAS Beijing China Northwest Institute of Nuclear Technology Xi’an China Department of Engineering and Applied Physics University of Science and Technology of China Hefei China School of Physics Beihang University Beijing China Xi’an Jiaotong University Xi’an China

In the original article, there were some errors in the list of authors and affiliations. Their correct version is given in this erratum.

关键词：

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：