摘要
The number ofψ(3686)events collected by the BESⅢdetector during the 2021 run period is determined to be(2259.3±11.1)×10~6 by counting inclusiveψ(3686)hadronic events.The uncertainty is systematic and the statistical uncertainty is negligible.Meanwhile,the numbers ofψ(3686)events collected during the 2009 and 2012run periods are updated to be(107.7±0.6)×10~6 and(345.4±2.6)×10~6,respectively.Both numbers are consistent with the previous measurements within one standard deviation.The total number ofψ(3686)events in the three data samples is(2712.4±14.3)×10~6.
基金
supported in part by National Key R&D Program of China under Contracts Nos.2020YFA0406300,2020YFA0406400
National Natural Science Foundation of China(NSFC)under Contracts Nos.12150004,11635010,11735014,11835012,11935015,11935016,11935018,11961141012,12025502,12035009,12035013,12061131003,12192260,12192261,12192262,12192263,12192264,12192265,12221005,12225509,12235017
the Program of Science and Technology Development Plan of Jilin Province of China under Contract Nos.20210508047RQ and 20230101021JC
the Chinese Academy of Sciences(CAS)Large-Scale Scientific Facility Program
the CAS Center for Excellence in Particle Physics(CCEPP)
Joint Large-Scale Scientific Facility Funds of the NSFC and CAS under Contract No.U1832207
CAS Key Research Program of Frontier Sciences under Contracts Nos.QYZDJ-SSW-SLH003,QYZDJ-SSW-SLH040
100 Talents Program of CAS
The Institute of Nuclear and Particle Physics(INPAC)
Shanghai Key Laboratory for Particle Physics and Cosmology
European Union's Horizon 2020 research and innovation programme under Marie Sklodowska-Curie grant agreement under Contract No.894790
German Research Foundation DFG under Contracts Nos.455635585,Collaborative Research Center CRC 1044,FOR5327,GRK 2149
Istituto Nazionale di Fisica Nucleare,Italy
Ministry of Development of Turkey under Contract No.DPT2006K-120470
National Research Foundation of Korea under Contract No.NRF-2022R1A2C1092335
National Science and Technology fund of Mongolia
National Science Research and Innovation Fund(NSRF)via the Program Management Unit for Human Resources&Institutional Development,Research and Innovation of Thailand under Contract No.B16F640076
Polish National Science Centre under Contract No.2019/35/O/ST2/02907
The Swedish Research Council
U.S.Department of Energy under Contract No.DE-FG02-05ER41374。
