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Measurement of integrated luminosity and center-of-mass energy of data taken by BESIII at √s =2.125 GeV M. Ablikim, M. N. Achasov, S. Ahmed [et al.]

Contributor(s): Achasov, M. N | Ahmed, S | Chelkov, G. A | Ablikim, MMaterial type: ArticleArticleSubject(s): BESIII, детектор | BEPCII, коллайдер | столкновение частицGenre/Form: статьи в журналах Online resources: Click here to access online In: Chinese physics C Vol. 41, № 11. P. 113001-1-113001-9Abstract: 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.
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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.

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