Study of e[superscript +]e[superscript -]→pp̅ via initial-state radiation at BABAR
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Lees-2013-initial-state radiation at BABAR.pdf
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Author(s)
Sciolla, Gabriella
Cowan, Ray F
Dujmic, Denis
Date Issued
May 2013
Journal
Physical Review D
Publisher
American Physical Society
Citation
Lees, J. P., V. Poireau, V. Tisserand, E. Grauges, A. Palano, G. Eigen, B. Stugu, et al. “Study of e[superscript +]e[superscript -]→pp̅ via initial-state radiation at BABAR.” Physical Review D 87, no. 9 (May 2013). © 2013 American Physical Society
Version
Final published version
Abstract
The process e[superscript +]e[superscript -]→pp̅ γ is studied using 469 fb[superscript -1] of integrated luminosity collected with the BABAR detector at the SLAC National Accelerator Laboratory, at an e[superscript +]e[superscript -] center-of-mass energy of 10.6 GeV. From the analysis of the pp̅ invariant mass spectrum, the energy dependence of the cross section for e[superscript +]e[superscript -]→pp̅ is measured from threshold to 4.5 GeV. The energy dependence of the ratio of electric and magnetic form factors, |G[subscript E]/G[subscript M]|, and the asymmetry in the proton angular distribution are measured for pp̅ masses below 3 GeV. The branching fractions for the decays J/ψ→pp̅ and ψ(2S)→pp̅ are also determined.
MIT Department
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1103/PhysRevD.87.092005
