Supported by the National Natural Science Foundation of China(10935007,11305180);the National Program on Key Basic Research Project of China(973 Program)(2009CB825200,2015CB856700)
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 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)(10625524,10821063,10825524,10835001,10935007,11125525,10975143,10979058),Joint Funds of the National Natural Science Foundation of China(11079008,11179007);Chinese Academy of Sciences(CAS)Large-Scale Scientific Facility Program;CAS(KJCX2-YW-N29,KJCX2-YW-N45);100 Talents Program of CAS,Istituto Nazionale di Fisica Nucleare,Italy,Ministry of Development of Turkey(DPT2006K-120470);U.S.Department of Energy(DE-FG02-04ER41291,DE-FG02-91ER40682,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)
The number of φ' events accumulated by the BESIII experiment from March 3 through April 14, 2009, is determined by counting inclusive hadronic events. The result is 106.41×(1.00±0.81%)×10^6. The error is system...
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 (10935007);National Key Basic Research Program (973 by MOST) (2009CB825200XX)
We present the physics program of the open charm and heavy cc states above the DD production energy threshold, which will be studied with the BES-Ⅲ detector at the BEPC- Ⅱ collider in the coming years. Based on some...
Supported by Ministry of Science and Technology of China (2009CB825200);National Natural Science Foundation of China(NSFC) (10625524,10821063,10825524,10835001,10935007);Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility Program,CAS (KJCX2-YW-N29,KJCX2-YW-N45);100 Talents Program of CAS;Istituto Nazionale di Fisica Nucleare,Italy,Russian Foundation for Basic Research (08-02-2221, 08-02-92200-NSFC-a);Siberian Branch of Russian Academy of Science,joint project No 32 with CAS,Chinese University of Hong Kong Focused Investment Grant (3110031);U. S. Department of Energy(DE-FG02-04ER41291,DE-FG02-91ER40682,DE-FG02-94ER40823);WCU Program of National Research Foundation of Korea(R32-2008-000-10155-0);the A.P. Sloan Foundation
The decay channel ψ′→ π 〉+π^-J/ψ(J/ψ 〉 γp^-p) is studied using a sample of 1.06 × 10^8 ψ′ events collected by the BESIII experiment at BEPCII. A strong enhancement at threshold is observed in the p^-p ...