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

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

2002-10-23

arxiv.org/abs/hep-ph/0210306v2

Phys.Atom.Nucl.66:2143-2148,2003; Yad.Fiz.66:2193-2198,2003

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages, 2 figures; added references

Scientific paper

10.1134/1.1634321

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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