The e+e-→pp¯ 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 469fb-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→pp¯ and ψ(2S)→pp¯ have also been measured.

Measurement of the e^{+}e^{-}→pp[over ¯] cross section in the energy range from 3.0 to 6.5 GeV / J. P., L., V., P., V., T., E., G., A., P., G., E., B., S., D. N., B., L. T., K., Kolomensky, Y.u.G., M. J., L., G., L., H., K., T., S., C., H., T. S., M., J. A., M., R. Y., S.o., A., K., V. E., B., et al.. - In: PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY. - ISSN 1550-7998. - 88:(2013), pp. 072009-1-072009-12. [10.1103/PhysRevD.88.072009]

Measurement of the e^{+}e^{-}→pp[over ¯] cross section in the energy range from 3.0 to 6.5 GeV

LANCERI, LIVIO;VITALE, LORENZO;
2013-01-01

Abstract

The e+e-→pp¯ 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 469fb-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→pp¯ and ψ(2S)→pp¯ have also been measured.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11368/2769161
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