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JOURNALS // Teoreticheskaya i Matematicheskaya Fizika // Archive

TMF, 1977 Volume 30, Number 2, Pages 168–182 (Mi tmf2779)

This article is cited in 4 papers

Asymptotic behavior of the pion electromagnetic form factor in a scale-invariant quark model

A. V. Efremov, A. V. Radyushkin


Abstract: Consistent relativistic approach is proposed to the investigation of asymptotic behaviour of form-factor of a system composed of two spinor particles, interacting with the vector or (pseudo) scalar neutral field. It is shown that the assumption of finite and small asymptotical value of the quark-gluon interaction invariant charge $(g_0^2\ll 1)$ leads to the “quark counting rules” in the parton region $(g_0^2\, \ln\, (-q^2)\ll 1)$ and to thereaking of these rules at greater $-q^2$ values.

Received: 11.05.1976


 English version:
Theoretical and Mathematical Physics, 1977, 30:2, 106–116


© Steklov Math. Inst. of RAS, 2026