Gluonic reggeons

Details Gluonic reggeons Gluonic reggeons

1997-05-12

arxiv.org/abs/hep-ph/9705291v3

Phys.Lett.B419:348-356,1998

Physics

High Energy Physics

High Energy Physics - Phenomenology

18 pages, LATEX, 2 EPS figures, revised, to be published in Phys. Lett. B

Scientific paper

10.1016/S0370-2693(97)01283-5

Contributions from gluon interactions, which are non-leading in high-energy semi-hard processes, are studied and represented in terms of reggeon exchanges. Unlike the leading gluonic reggeon, related to the BFKL pomeron, the non-leading reggeons are sensitive to the spin and transverse momentum distributions of scattering partons. There are several gluonic reggeons with poles in the vicinity of angular momentum $j=0$ contributing to the perturbative Regge asymptotics of QCD. We extend the high-energy effective action including sub-leading terms which describe these reggeons and their interactions with scattering quarks and gluons in the multi-Regge approximation.

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