Study of the process e+e- →p p via initial state radiation at BESIII STUDY of the PROCESS e+e- →p p VIA INITIAL ⋯ M. ABLIKIM et al.

(BESIII Collaboration)

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Abstract

The Born cross section for the process e+e-→pp is measured using the initial state radiation technique with an undetected photon. This analysis is based on datasets corresponding to an integrated luminosity of 7.5 fb-1, collected with the BESIII detector at the BEPCII collider at center of mass energies between 3.773 and 4.600 GeV. The Born cross section for the process e+e-→pp and the proton effective form factor are determined in the pp invariant mass range between 2.0 and 3.8 GeV/c2 divided into 30 intervals. The proton form factor ratio (|GE|/|GM|) is measured in 3 intervals of the pp invariant mass between 2.0 and 3.0 GeV/c2.

Original languageEnglish (US)
Article number092002
JournalPhysical Review D
Volume99
Issue number9
DOIs
StatePublished - May 1 2019

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