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

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Date

2017-11

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Publisher

CHINESE PHYSICAL SOC

Access Rights

info:eu-repo/semantics/openAccess

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.

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Keywords

Bhabha scattering, luminosity, radiative dimuon events, center-of-mass energy

Journal or Series

CHINESE PHYSICS C

WoS Q Value

Q2

Scopus Q Value

Q2

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