TY - SER AU - Achasov,M.N. AU - Ahmed,S. AU - Chelkov,G.A. AU - Ablikim,M. TI - Measurement of integrated luminosity and center-of-mass energy of data taken by BESIII at √s =2.125 GeV KW - BESIII, детектор KW - BEPCII, коллайдер KW - столкновение частиц KW - статьи в журналах N1 - Библиогр.: 23 назв N2 - 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 UR - http://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000644990 ER -