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.


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Ablikim M., Achasov M., Adlarson P., Ahmed S., Albrecht M., Alekseev M., ...More

Physical Review D, vol.99, no.9, 2019 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 99 Issue: 9
  • Publication Date: 2019
  • Doi Number: 10.1103/physrevd.99.092002
  • Journal Name: Physical Review D
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Ankara University Affiliated: No

Abstract

© 2019 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the »https://creativecommons.org/licenses/by/4.0/» 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.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.