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

M. K. Volkov·A. E. Radzhabov·V. L. Yudichev
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Abstract

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.

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M. K. Volkov, A. E. Radzhabov, V. L. Yudichev. 2002-10-30. Process gamma* gamma -> sigma at large virtuality of gamma*. https://doi.org/10.1134/1.1634321

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