Process gamma* gamma -> sigma at large virtuality of gamma*

Volkov, M. K.; Radzhabov, A. E.; Yudichev, V. L.

Process gamma* gamma -> sigma at large virtuality of gamma*

Authors

Volkov, M. K.

Radzhabov, A. E.

Yudichev, V. L.

Description

The process gamma* gamma -> sigma is investigated in the framework of the SU(2)xSU(2) chiral NJL model. The form factor of the process is derived for arbitrary virtuality of gamma* in the Euclidean kinematic domain. The asymptotic behaviour of this form factor resembles the asymptotic behaviour of the gamma* gamma -> pi form factor.
11 pages, 2 figures; added references