The e+e-→pp̄ cross section and the proton magnetic form factor have been measured in the center-of-mass energy range from 3.0 to 6.5 GeV using the initial-state radiation technique with an undetected photon. This is the first measurement of the form factor at energies higher than 4.5 GeV. The analysis is based on 469 fb-1 of integrated luminosity collected with the BABAR detector at the PEP-II collider at e+e - center-of-mass energies near 10.6 GeV. The branching fractions for the decays J/ψ→pp̄ and ψ(2S)→pp̄ have also been measured. © 2013 American Physical Society.

Measurement of the e+e-→pp̄ cross section in the energy range from 3.0 to 6.5 GeV

A. Gaz;MARGONI, MARTINO;SIMI, GABRIELE;SIMONETTO, FRANCO;STROILI, ROBERTO;
2013

Abstract

The e+e-→pp̄ cross section and the proton magnetic form factor have been measured in the center-of-mass energy range from 3.0 to 6.5 GeV using the initial-state radiation technique with an undetected photon. This is the first measurement of the form factor at energies higher than 4.5 GeV. The analysis is based on 469 fb-1 of integrated luminosity collected with the BABAR detector at the PEP-II collider at e+e - center-of-mass energies near 10.6 GeV. The branching fractions for the decays J/ψ→pp̄ and ψ(2S)→pp̄ have also been measured. © 2013 American Physical Society.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11577/2801917
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