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

RAMA, MATTEO;ANGELINI, CARLO;BATIGNANI, GIOVANNI;BETTARINI, STEFANO;CASAROSA, GIULIA;CERVELLI, ALBERTO;FORTI, FRANCESCO;OBERHOF, BENJAMIN JEROME ANDREAS;PAOLONI, EUGENIO;RIZZO, GIULIANA;LUECK, THOMAS;
2013-01-01

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.
2013
Lees, J. P; Poireau, V.; Tisserand, V.; Grauges, E.; Palano, A.; Eigen, G.; Stugu, B.; Brown, D. N.; Kerth, L. T.; Kolomensky, Y. u. G.; Lee, M. J.; L...espandi
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11568/838134
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 84
  • ???jsp.display-item.citation.isi??? 64
social impact