• Open Access

Study of the process e+epp¯ via initial state radiation at BESIII

M. Ablikim et al. (BESIII Collaboration)
Phys. Rev. D 99, 092002 – Published 10 May 2019

Abstract

The Born cross section for the process e+epp¯ is measured using the initial state radiation technique with an undetected photon. This analysis is based on datasets corresponding to an integrated luminosity of 7.5fb1, 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+epp¯ and the proton effective form factor are determined in the pp¯ invariant mass range between 2.0 and 3.8GeV/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 3.0GeV/c2.

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  • Received 2 February 2019

DOI:https://doi.org/10.1103/PhysRevD.99.092002

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.

Published by the American Physical Society

Physics Subject Headings (PhySH)

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  1. Physical Systems
Particles & Fields

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Vol. 99, Iss. 9 — 1 May 2019

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