Supported by the Ministry of Science and Technology of China(2009CB825200);National Natural Science Foundation of China(NSFC)(11235011,11322544,11335008,11425524,11475207);the Chinese Academy of Sciences(CAS)Large-Scale Scientific Facility Program;the Collaborative Innovation Center for Particlcs and Interactions(CICPI);Joint Large-Scale Scientific Facility Funds of the NSFC and CAS(11179014);Joint Large-Scale Scientific Facility Funds of the NSFC and CAS(11179007,U1232201,U1532257,U1532258);Joint Funds of the National Natural Science Foundation of China(11079008);CAS(KJCX2-YW-N29,KJCX2-YW-N45);100 Talents Program of CAS;National 1000 Talents Program of China;German Research Foundation DFG(Collaborative Research Center CRC 1044);Istituto Nazionale di Fisica Nucleare,Italy;Koninklijke Nederlandse Akademie van Wetenschappen(KNAW)(530-4CDP03);Ministry of Development of Turkey(DPT2006K-120470);National Natural Science Foundation of China(11205082);The Swedish Research Council,U.S.Department of Energy(DE-FG02-05ER41374,DE-SC-0010118,DE-SC-0010504);U.S.National Science Foundation,University of Groningen(RuG);the Helmholtzzentrum fuer Schwerionenforschung GmbH(GSI);Darmstadt,WCU Program of National Research Foundation of Korea(R32-2008-000-10155-0)
The numbers of ψ（3686） events accumulated by the BESⅢ detector for the data taken during 2009 and 2012 are determined to be（107.0±0.8）×10^6 and（341.1±2.1）×10^6, respectively, by counting inclusive hadronic...
Supported by National Key Basic Research Program of China(2015CB856700);National Natural Science Foundation of China(NSFC)(10805053,11125525,11175188,11235011,11322544,11335008,11425524);Chinese Academy of Sciences(CAS)Large-Scale Scientific Facility Program;the CAS Center for Excellence in Particle Physics(CCEPP);Collaborative Innovation Center for Particles and Interactions(CICPI);Joint Large-Scale Scientific Facility Funds of NSFC and CAS(11179007,U1232201,U1232107,U1332201);CAS(KJCX2-YW-N29,KJCX2-YW-N45);100 Talents Program of CAS,INPAC;Shanghai Key Laboratory for Particle Physics and Cosmology;German Research Foundation DFG(Collaborative Research Center CRC-1044);Istituto Nazionale di Fisica Nucleare,Italy;Ministry of Development of Turkey(DPT2006K-120470);Russian Foundation for Basic Research(14-07-91152);U.S.Department of Energy(DE-FG02-04ER41291,DE-FG02-05ER41374,DE-FG02-94ER40823,DESC0010118);U.S.National Science Foundation;University of Groningen(RuG);the Helmholtzzentrum fuer Schwerionenforschung GmbH(GSI),Darmstadt;WCU Program of National Research Foundation of Korea(R32-2008-000-10155-0)
A measurement of the number of J/ψ events collected with the BESⅢ detector in 2009 and 2012 is performed using inclusive decays of the J/ψ. The number of J/ψ events taken in 2009 is recalculated to be（223.7±1.4...
Supported by National Key Basic Research Program of China(2015CB856700);National Natural Science Foundation of China(NSFC)(11125525,11235011,11322544,11335008,11425524);Chinese Academy of Sciences(CAS)Large-Scale Scientific Facility Program,Joint Large-Scale Scientific Facility Funds of the NSFC and CAS(11179007,U1232201,U1332201)CAS(KJCX2-YW-N29,KJCX2-YW-N45);100 Talents Program of CAS,INPAC and Shanghai Key Laboratory for Particle Physics and Cosmology,German Research Foundation DFG(Collaborative Research Center CRC-1044),Istituto Nazionale di Fisica Nucleare,Italy;Ministry of Development of Turkey(DPT2006K-120470);Russian Foundation for Basic Research(14-07-91152);U.S.Department of Energy(DE-FG02-04ER41291,DE-FG02-05ER41374,DE-FG02-94ER40823,DESC0010118);U.S.National Science Foundation,University of Groningen(RUG)and the Helmholtzzentrum fuer Schwerionenforschung GmbH(GSI),Darmstadt and WCU Program of National Research Foundation of Korea(R32-2008-000-10155-0)
From December 2011 to May 2014, about 5 fb^-1 of data were taken with the BESIII detector at center-of- mass energies between 3.810 GeV and 4.600 GeV to study the charmonium-like states and higher excited charmonium s...
Supported by National Key Basic Research Program of China(2015CB856700);Joint Funds of National Natural Science Foundation of China(11079008,11179007,U1232201,U1332201,U1232107);National Natural Science Foundation of China(NSFC)(10935007,11121092,11125525,11235011,11322544,11335008);Chinese Academy of Sciences(CAS)Large-Scale Scientific Facility Program,CAS(KJCX2-YW-N29,KJCX2-YW-N45);100 Talents Program of CAS,INPAC and Shanghai Key Laboratory for Particle Physics and Cosmology;German Research Foundation DFG(Collaborative Research Center CRC-1044);Istituto Nazionale di Fisica Nucleare,Italy,Ministry of Development of Turkey(DPT2006K-120470);Russian Foundation for Basic Research(14-07-91152);U.S.Department of Energy(DE-FG02-04ER41291,DE-FG02-05ER41374,DE-FG02-94ER40823,DESC0010118);U.S.National Science Foundation,University of Groningen(RuG)and Helmholtzzentrum fuer Schwerionenforschung GmbH(GSI),Darmstadt,WCU Program of National Research Foundation of Korea(R32-2008-000-10155-0)
Using data samples collected at center-of-mass energies of √s=4.009, 4.230, 4.260, and 4.360 GeV with the BES0 detector operating at the BEPC/ collider, we perform a search for the process e＋e-→γχc,j （J =0, 1, 2...
Supported by National Natural Science Foundation of China(11275188,11179007,11135009)
We propose to understand the mixing angles and CP-violating phases from the A（48） family symmetry combined with the generalized CP symmetry. A model-independent analysis is performed by scanning all the possible sym...
Supported by the Ministry of Science and Technology of China(2009CB825204);National Natural Science Foundation of China(10625524,10821063,10825524,10835001,10935007,11125525,11235011);Joint Funds of the National Natural Science Foundation of China(11079008,11179007);Chinese Academy of Sciences Large-Scale Scientific Facility Program,CAS(KJCX2-YW-N29,KJCX2-YW-N45);100 Talents Program of CAS,German Research Foundation DFG(Collaborative Research Center CRC-1044);Istituto Nazionale di Fisica Nucleare,Italy,Ministry of Development of Turkey(DPT2006K-120470);U.S.Department of Energy(DE-FG02-04ER41291,DE-FG02-05ER41374,DE-FG02-94ER40823);U.S.National Science Foundation,University of Groningen(RuG);the Helmholtzzentrum fuer Schwerionenforschung GmbH(GSI);Darmstadt,WCU Program of National Research Foundation of Korea(R32-2008-000-10155-0)
Data sets were collected with the BESⅢ detector at the BEPCⅡ collider at the center-of-mass energy of √s=3.650 GeV during May 2009 and at √s=3.773 GeV from January 2010 to May 2011. By analyzing the large angle Bh...
Supported by Ministry of Science and Technology of China (2009CB825200);National Natural Science Foundation of China (NSFC) (10625524, 10821063, 10825524, 10835001, 10935007, 11125525);Joint Funds of National Natural Science Foundation of China (11079008, 11179007);Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility Program (KJCX2-YW-N29, KJCX2-YW-N45);100 Talents Program of CAS, Istituto Nazionale di Fisica Nucleare, Italy, U. S. Department of Energy (DE-FG02-04ER41291, DE-FG02-91ER40682, DE-FG02-94ER40823);U.S. National Science Foundation, University of Groningen (RuG) and the Helmholtzzentrum fuer Schwerionenforschung GmbH (GSI), Darmstadt, WCU Program of National Research Foundation of Korea (R32-2008-000-10155-0)
The number of J/ψ events collected with the BES detector at the BEPC from June 12 to July 28, 2009 is determined to be （225.3 ± 2.8） × 10^ 6 using J/ψ→inclusive events, where the uncertainty is the systematic e...
Supported by National Natural Science Foundation of China(10875113,10875138,11079030,11179007)
A photon conversion finder （PCF） based on track information from the main drift chamber （MDC） of the Beijing Spectrometer （BESⅢ） at the Beijing Electron Positron Collider （BEPCⅡ） is developed. The validation...
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