https://doi.org/10.1140/epjc/s2006-02499-4
Theoretical Physics
A description of the ratio between electric and magnetic proton form factors by using space-like, time-like data and dispersion relations
1
Centro Studi e Ricerche Enrico Fermi, Roma, Italy
2
Laboratori Nazionali di Frascati dell’INFN, Frascati, Italy
3
Università “La Sapienza” e Sezione INFN, Roma, Italy
4
Università di Ferrara e Sezione INFN, Ferrara, Italy
* e-mail: simone.pacetti@lnf.infn.it
Received:
8
July
2005
Published online:
31
March
2006
We use the available information on the ratio between the electric and magnetic proton form factors coming from recently published space-like data and from the few available time-like data. We apply a dispersive procedure on these data to evaluate the behavior of this ratio, as a complex function, for all values of q2.
© Springer-Verlag, 2006