Determination of the number of ψ(3686) events at BESIII

Y. D. Wang, M. Ablikim, M. N. Achasov, X. C. Ai, D. J. Ambrose, A. Amoroso, F. F. An, Q. An, J. Z. Bai, R. Baldini Ferroli, Y. Ban, J. V. Bennett, M. Bertani, J. M. Bian, E. Boger, O. Bondarenko, I. Boyko, R. A. Briere, H. Cai, X. CaiO. Cakir, A. Calcaterra, G. F. Cao, S. A. Cetin, J. F. Chang, G. Chelkov, G. Chen, H. S. Chen, J. C. Chen, M. L. Chen, S. J. Chen, X. Chen, X. R. Chen, Y. B. Chen, X. K. Chu, Y. P. Chu, D. Cronin-Hennessy, H. L. Dai, J. P. Dai, D. Dedovich, Z. Y. Deng, A. Denig, I. Denysenko, M. Destefanis, Y. Ding, C. Dong, J. Dong, L. Y. Dong, M. Y. Dong, S. X. Du

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Abstract

The numbers of φ(3686) events accumulated by the BESIII detector for the data taken during 2009 and 2012 are determined to be (107:0±0:8) ×106 and (341:1±2:1)×106 , respectively, by counting inclusive hadronic events, where the uncertainties are systematic and the statistical uncertainties are negligible. The number of events for the sample taken in 2009 is consistent with that of the previous measurement. The total number of φ(3686) events for the two data taking periods is (448:1±2:9)×106 .

Original languageEnglish (US)
Article number023001
JournalChinese Physics C
Volume42
Issue number2
DOIs
StatePublished - Feb 2018

Bibliographical note

Publisher Copyright:
© Article funded by SCOAP3 and published under licence by Chinese Physical Society and the Institute of High Energy Physics of the Chinese Academy of Sciences and the Institute of Modern Physics of the Chinese Academy of Sciences and IOP Publishing Ltd.

Keywords

  • Bhabha process
  • hadronic events
  • inclusive process
  • φ(3686)

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