Supported in part by National Natural Science Foundation of China(NSFC)(11235011,11475187,11521505,U1632106);the Ministry of Science and Technology of China(2015CB856701);Key Research Program of Frontier Sciences,CAS,(QYZDJ-SSW-SLH011);the CAS Center for Excellence in Particle Physics(CCEPP)
The exclusive Born cross sections of the production of D0, D＋ and Ds＋ mesons in e＋e- annihilation at 13 energy points between 3.970 and 4.260 GeV are obtained by applying corrections for initial state radiation and...
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 Natural Science Foundation of China(11375205,11175146,11275266,11235011,11425524,11505010,11565006);Beijing Municipal Government Foundation(KM201610017009,2015000020124G064);Youth Innovation Promotion Association of CAS
We propose to measure the decay asymmetry parameters in the hadronic weak decays of singly charmed baryons, such as Λc^＋ →Λπ^＋, Σ^0π^＋, pK0, Ξ0c →Ξ-π＋and Ω^0c →Ω^-π^＋. The joint angular formulae for...
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 in part by National Natural Science Foundation of China(NSFC)(11375206,10775142,10825524,11125525,11235011);the Ministry of Science and Technology of China(2015CB856700,2015CB856705);State key laboratory of particle and detection and electronics and the CAS Center for Excellence in Particle Physics(CCEPP);the RFBR grant(14-02-00129-a);U.S.Department of Energy(DE-FG02-04ER41291,DE-FG02-05ER41374,DE-FG02-94ER40823,DESC0010118);U.S.National Science Foundation,part of this work related to the design of Zn Se viewports is supported by the Russian Science Foundation(14-50-00080)
The beam energy measurement system is of great importance for both BEPC-II accelerator and BES-III detector. The system is based on measuring the energies of Compton back-scattered photons. In order to meet the requir...
the National Natural Science Foundation of China (11235011);the National Basic Research Program of China (2015CB856701);CAS Center for Excellence in Particle Physics (CCEPP)
The charged lepton flavor violation process is a clean and sensitive probe of new physics beyond the Standard Model. A sensitivity study is performed to the process τ^-→γμ^- based on a 3 fb^(-1) inclusive Monte Ca...
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(NSFC)(11375206,10775142,10825524,11125525,11235011)
The beam energy is measured in the e^＋e^- collision by using Compton backscattering. The uncertainty of this measurement process is studied by virtue of analytical formulas, and the special effects of variant energy ...
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