2005-2020 ? 白城師范學院 | 備案號:吉ICP備12003635號
地址:吉林省白城市中興西大路57號 | 郵編:137000
作者機構:Centro Brasileiro de Pesquisas Físicas(CBPF)Rio de JaneiroBrazil Universidade Federal do Rio de Janeiro(UFRJ)Rio de JaneiroBrazil Center for High Energy PhysicsTsinghua UniversityBeijingChina School of Physics State Key Laboratory of Nuclear Physics and TechnologyPeking UniversityBeijingChina University of Chinese Academy of SciencesBeijingChina Institute Of High Energy Physics(IHEP)BeijingChina Institute of Particle PhysicsCentral China Normal UniversityWuhanHubeiChina Univ.Grenoble AlpesUniv.Savoie Mont BlancCNRSIN2P3-LAPPAnnecyFrance UniversitéClermont AuvergneCNRS/IN2P3LPCClermont-FerrandFrance Aix Marseille UnivCNRS/IN2P3CPPMMarseilleFrance LALUniv.Paris-SudCNRS/IN2P3UniversitéParis-SaclayOrsayFrance LPNHESorbonne UniversitéParis Diderot Sorbonne Paris CitéCNRS/IN2P3ParisFrance I.Physikalisches InstitutRWTH Aachen UniversityAachenGermany Fakult?t PhysikTechnische Universit?t DortmundDortmundGermany Max-Planck-Institut für Kernphysik(MPIK)HeidelbergGermany Physikalisches InstitutRuprecht-Karls-Universit?t HeidelbergHeidelbergGermany School of PhysicsUniversity College DublinDublinIreland INFN Sezione di BariBariItaly INFN Sezione di BolognaBolognaItaly INFN Sezione di FerraraFerraraItaly INFN Sezione di FirenzeFirenzeItaly INFN Laboratori Nazionali di FrascatiFrascatiItaly INFN Sezione di GenovaGenovaItaly INFN Sezione di Milano-BicoccaMilanoItaly INFN Sezione di MilanoMilanoItaly INFN Sezione di CagliariMonserratoItaly INFN Sezione di PadovaPadovaItaly INFN Sezione di PisaPisaItaly INFN Sezione di Roma Tor VergataRomaItaly INFN Sezione di Roma La SapienzaRomaItaly Nikhef National Institute for Subatomic PhysicsAmsterdamNetherlands Nikhef National Institute for Subatomic Physics and VU University AmsterdamAmsterdamNetherlands Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of SciencesKrakówPoland AGH-University of Science and TechnologyFaculty of Physics and Applied Computer ScienceKrakówPoland
出 版 物:《中國物理C:英文版》 (Chinese Physics C)
年 卷 期:2020年第44卷第2期
頁 面:13-23
核心收錄:
學科分類:07[理學] 0702[理學-物理學] 070202[理學-粒子物理與原子核物理]
基 金:Supported by CERN national agencies:CAPES CNPq FAPERJ FINEP(Brazil) MOST NSFC(China) CNRS/IN2P3(France) BMBF DFG MPG(Germany) INFN(Italy) NWO(Netherlands) MNiSW NCN(Poland) MEN/IFA(Romania) MSHE(Russia) MinECo(Spain) SNSF SER(Switzerland) NASU(Ukraine) STFC(United Kingdom) DOE NP NSF(USA) Key Research Program of Frontier Sciences of CAS,CAS PIFI the Thousand Talents Program(China) RFBR RSF Yandex LLC(Russia) GVA XuntaGal GENCAT(Spain) the Royal Society and the Leverhulme Trust(United Kingdom)。
主 題:doubly charmed baryons hadron production QCD
摘 要:The production of ■baryons in proton-proton collisions at a centre-of-mass energy of √s = 13 TeV is measured in the transverse-momentum range 4pT15GeV/c and the rapidity range2.0y4.5.The data used in this measurement correspond to an integrated luminosity of 1.7fb^-1,recorded by the LHCb experiment during 2016.The ratio of the ■ production cross-section times the branching fraction of the■→∧^+cK^-π^+ π^+decay relative to the prompt ∧^+c production cross-section is found to be(2.22±0.27±0.29)×10^-4,assuming the central value of the measured lifetime,where the first uncertainty is statistical and the second systematic.