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Study of e[superscript +]e[superscript -]→pp̅ via initial-state radiation at BABAR

Author(s)
Sciolla, Gabriella; Cowan, Ray F; Dujmic, Denis
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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.
Date issued
2013-05
URI
http://hdl.handle.net/1721.1/80800
Department
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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
ISSN
1550-7998
1550-2368

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