Study ofe+e−→pp¯via initial-state radiation atBABAR

2013/02/01 by J. P. Lees, The BABAR Collaboration, V. Poireau +98 · 5 citations
Engineering · Physics and Astronomy · #Particle Accelerators and Free-Electron Lasers #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ex

paper · pdf · doi:10.1103/physrevd.87.092005

23 pages, 20 postscript figures, submitted to Phys. Rev. D

arxiv created 2013/02/01 · openalex publication_date 2013/05/10 · arxiv updated 2013/05/15 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/04

Abstract

The process e⁺e^\ensuremath-\ensuremath→pp\ensuremathγ is studied using 469 fb^\ensuremath-1 of integrated luminosity collected with the BABAR detector at the SLAC National Accelerator Laboratory, at an e⁺e^\ensuremath- center-of-mass energy of 10.6 GeV. From the analysis of the pp invariant mass spectrum, the energy dependence of the cross section for e⁺e^\ensuremath-\ensuremath→pp is measured from threshold to 4.5 GeV. The energy dependence of the ratio of electric and magnetic form factors, |G_E/G_M|, and the asymmetry in the proton angular distribution are measured for pp masses below 3 GeV. The branching fractions for the decays J/\ensuremathψ\ensuremath→pp and \ensuremathψ(2S)\ensuremath→pp are also determined.

Citations

• Review of Particle Physics
• Timelike and spacelike nucleon electromagnetic form factors beyond relativistic constituent quark models
• Electromagnetic form factors of nucleons with QCD constraints: Systematic study of space- and time-like regions

Cited by

• Nucleon form factors and final state radiative corrections toe+e−→p¯pγ
• Real and virtualNN¯pair production near the threshold
• New structures in the proton-antiproton system
• Study of the processe+e−→nn¯at the VEPP-2000e+e−collider with the SND detector
• Precision Measurement of the e+e−→Λc+Λ¯c− Cross Section Near Threshold

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• Precise Measurement of thee+e−→π+π−(γ)Cross Section with the Initial State Radiation Method atBABAR
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• Study of the process e⁺e^-→ π⁺π^-π⁰ using initial state radiation with BABAR
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