Institute for Theoretical Particle Physics (TTP)

TTP04-05 Nucleon form factors, B-meson factories and the radiative return

TTP04-05 Nucleon form factors, B-meson factories and the radiative return

TTP04-05 Nucleon form factors, B-meson factories and the radiative return

The feasibility of a measurement of the electric and magnetic nucleon form factors at $B$-meson factories through the radiative return is studied. Angular distributions allow a separation of the contributions from the two form factors. The distributions are presented for the laboratory and the hadronic rest frame, and the advantages of different coordinate systems are investigated. It is demonstrated that $Q^2$ values up to 8 or even 9 GeV$^2$ are within reach. The Monte Carlo event generator PHOKHARA is extended to nucleon final states, and results are presented which include Next-to-Leading Order radiative corrections from initial-state radiation. The impact of angular cuts on rates and distributions is investigated and the relative importance of radiative corrections is analysed.

H. Czyz, J. H. K“uhn, E. Nowak, G. Rodrigo
Eur.Phys.J.C 35 527-536 2004
PDF PostScript arXiv
This website uses cookies. By using the website, you agree with storing cookies on your computer. Also you acknowledge that you have read and understand our Privacy Policy. If you do not agree leave the website.More information about cookies