2018
DOI: 10.1088/1674-1137/42/6/063001
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Measurement of the integrated Luminosities of cross-section scan data samples around the ${\rm{\psi }}$(3770) mass region

Abstract: To investigate the nature of the ψ(3770) resonance and to measure the cross section for e + e − →D D, a cross-section scan data sample, distributed among 41 center-of-mass energy points from 3.73 to 3.89 GeV, was taken with the BESIII detector operated at the BEPCII collider in the year 2010. By analyzing the large angle Bhabha scattering events, we measure the integrated luminosity of the data sample at each center-of-mass energy point. The total integrated luminosity of the data sample is 76.16±0.04±0.61 pb … Show more

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“…It was already used to monitor the luminosity at e + e − flavor factories with c.m. energy at the GeV scale [10,11] and is still employed by BESIII Collaboration to cross-check the luminosity obtained by analyzing large-angle Bhabha scattering events [12]. Actually, e + e − → γγ turns out to be a particularly adequate normalization process from a theoretical point of view.…”
Section: Introductionmentioning
confidence: 99%
“…It was already used to monitor the luminosity at e + e − flavor factories with c.m. energy at the GeV scale [10,11] and is still employed by BESIII Collaboration to cross-check the luminosity obtained by analyzing large-angle Bhabha scattering events [12]. Actually, e + e − → γγ turns out to be a particularly adequate normalization process from a theoretical point of view.…”
Section: Introductionmentioning
confidence: 99%