NLO Vertex for a Forward Jet plus a Rapidity Gap at High Energies

Martin Hentschinski (1) , J.D. Madrigal Martinez (2) , Beatrice Murdaca (3) , Agustín Sabio Vera (4)

1 BNL - Brookhaven National Laboratory [Upton, NY]
2 IPHT - Institut de Physique Théorique - UMR CNRS 3681
3 INFN - INFN
4 IFT - Instituto de Física Teórica UAM/CSIC

We present the calculation of the forward jet vertex associated to a rapidity gap (coupling of a hard pomeron to the jet) in the BFKL formalism at next-to-leading order (NLO). Real emission contributions are computed via Lipatov's effective action. The NLO jet vertex turns out to be finite within collinear factorization and allows, together with the NLO non-forward gluon Green's function, to perform NLO studies of jet production in diffractive events (e.g. Mueller-Tang dijets).

Mots clés: Perturbative QCD; BFKL; Effective Action; Diffraction

Domaines: Physique des Hautes Energies - Phénoménologie [hep-ph]

Martin Hentschinski, J.D. Madrigal Martinez, Beatrice Murdaca, Agustín Sabio Vera. NLO Vertex for a Forward Jet plus a Rapidity Gap at High Energies. AIP Conference Proceedings, 2015, 1654, pp.070013. ⟨10.1063/1.4916003⟩. ⟨cea-01340161⟩