The process e+e−→pp⎯⎯γ is studied using 469  fb−1 of integrated luminosity collected with the BABAR detector at the SLAC National Accelerator Laboratory, at an e+e− 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−→pp⎯⎯ is measured from threshold to 4.5 GeV. The energy dependence of the ratio of electric and magnetic form factors, |GE/GM|, and the asymmetry in the proton angular distribution are measured for pp⎯⎯ masses below 3 GeV. The branching fractions for the decays J/ψ→pp⎯⎯ and ψ(2S)→pp⎯⎯ are also determined.

Lees, J.P., Poireau, V., Tisserand, V., Grauges, E., Palano, A., Eigen, G., et al. (2013). Study of e(+)e(-) -> p(p)over-bar via initial-state radiation at BABAR. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 87(9), 1-18 [10.1103/PhysRevD.87.092005].

Study of e(+)e(-) -> p(p)over-bar via initial-state radiation at BABAR

PATRIGNANI, CLAUDIA;
2013

Abstract

The process e+e−→pp⎯⎯γ is studied using 469  fb−1 of integrated luminosity collected with the BABAR detector at the SLAC National Accelerator Laboratory, at an e+e− 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−→pp⎯⎯ is measured from threshold to 4.5 GeV. The energy dependence of the ratio of electric and magnetic form factors, |GE/GM|, and the asymmetry in the proton angular distribution are measured for pp⎯⎯ masses below 3 GeV. The branching fractions for the decays J/ψ→pp⎯⎯ and ψ(2S)→pp⎯⎯ are also determined.
2013
Lees, J.P., Poireau, V., Tisserand, V., Grauges, E., Palano, A., Eigen, G., et al. (2013). Study of e(+)e(-) -> p(p)over-bar via initial-state radiation at BABAR. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 87(9), 1-18 [10.1103/PhysRevD.87.092005].
Lees, J. P.; Poireau, V.; Tisserand, V.; Grauges, E.; Palano, A.; Eigen, G.; Stugu, B.; Brown, D. N.; Kerth, L. T.; Kolomensky, Yu. G.; Lynch, G.; Koc...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/535527
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