We calculate the quark part of the kernel of the generalized nonforward BFKL equation at nonzero momentum transfer t in the next-to-leading logarithmic approximation. Along with the quark contribution to the gluon Regge trajectory, this part includes pieces coming from the quark-antiquark production and from the quark contribution to the radiative corrections in one-gluon production in Reggeon-Reggeon collisions. The results obtained can be used for an arbitrary representation of the color group in the t channel. Using the results for the adjoint representation, we demonstrate explicitly the fulfillment of the ‘‘bootstrap’’ condition for the gluon Reggeization in the next-to-leading logarithmic approximation in the part concerning the quark contribution.

Quark part of the non-forward BFKL kernel and the "bootstrap" for the gluon Reggeization

PAPA, Alessandro
1999-01-01

Abstract

We calculate the quark part of the kernel of the generalized nonforward BFKL equation at nonzero momentum transfer t in the next-to-leading logarithmic approximation. Along with the quark contribution to the gluon Regge trajectory, this part includes pieces coming from the quark-antiquark production and from the quark contribution to the radiative corrections in one-gluon production in Reggeon-Reggeon collisions. The results obtained can be used for an arbitrary representation of the color group in the t channel. Using the results for the adjoint representation, we demonstrate explicitly the fulfillment of the ‘‘bootstrap’’ condition for the gluon Reggeization in the next-to-leading logarithmic approximation in the part concerning the quark contribution.
QCD in the high-energy limit; Perturbative QCD; BFKL approach
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.11770/138526
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 69
  • ???jsp.display-item.citation.isi??? 64
social impact