Measurement of integrated luminosity and center-of-mass energy of data taken by BESIII at √<i>s</i>=2.125 GeV


Ablikim M., Achasov M. N., Ahmed S., Ai X. C., AlbayraK O., Albrecht M., ...More

CHINESE PHYSICS C, vol.41, no.11, 2017 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 41 Issue: 11
  • Publication Date: 2017
  • Doi Number: 10.1088/1674-1137/41/11/113001
  • Journal Name: CHINESE PHYSICS C
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Bursa Uludag University Affiliated: Yes

Abstract

To study the nature of the state Y (2175), a dedicated data set of e(+)e(-) collision data was collected at the center-of-mass energy of 2.125 GeV with the BESIII detector at the BEPCII collider. By analyzing large-angle Bhabha scattering events, the integrated luminosity of this data set is determined to be 108.49 +/- 0.02 +/- 0.85 pb(-1), where the first uncertainty is statistical and the second one is systematic. In addition, the center-of-mass energy of the data set is determined with radiative dimuon events to be 2126.55 +/- 0.03 +/- 0.85 MeV, where the first uncertainty is statistical and the second one is systematic.