Off-shell gluon production in interaction of a projectile with 2 or 3 targets

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作者：
M. A. Braun
M. Yu. Salykin
机构：
[1] Saint-Petersburg State University,Department of High Energy physics
来源：
The European Physical Journal C | 2017年 / 77卷
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摘要：
Within the effective QCD action for the Regge kinematics, the amplitudes for virtual gluon emission are studied in collision of a projectile with two and three targets. It is demonstrated that all non-Feynman singularities cancel between induced vertices and rescattering contributions. Formulas simplify considerably in a special gauge, which is a straightforward generalization of the light-cone gauge for emission of real gluons.
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