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


Ablikim M., Achasov M., Ahmed S., Ai X., Albayrak O., Albrecht M., ...Daha Fazla

Chinese Physics C, cilt.41, sa.11, 2017 (SCI-Expanded, Scopus) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 41 Sayı: 11
  • Basım Tarihi: 2017
  • Doi Numarası: 10.1088/1674-1137/41/11/113001
  • Dergi Adı: Chinese Physics C
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Anahtar Kelimeler: Bhabha scattering, center-of-mass energy, luminosity, radiative dimuon events
  • Ankara Üniversitesi Adresli: Evet

Özet

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.