We recalculate, within the BFKL approach and at the next-to-leading order, the jet vertex relevant for the production of Mueller-Navelet jets in proton collisions and of forward jets in DIS. We consider both processes with incoming quark and gluon. The starting point is the definition of quark and gluon impact factors in the BFKL approach. Following this procedure we show explicitly that all infrared divergences cancel when renor- malized parton densities are considered. We compare our results for the vertex with the former calculation of refs. [1, 2].

The next-to-leading order jet vertex for Mueller-Navelet and forward jets revisited

PAPA, Alessandro;
2012-01-01

Abstract

We recalculate, within the BFKL approach and at the next-to-leading order, the jet vertex relevant for the production of Mueller-Navelet jets in proton collisions and of forward jets in DIS. We consider both processes with incoming quark and gluon. The starting point is the definition of quark and gluon impact factors in the BFKL approach. Following this procedure we show explicitly that all infrared divergences cancel when renor- malized parton densities are considered. We compare our results for the vertex with the former calculation of refs. [1, 2].
2012
BFKL resummation; Jet production in proton-proton collisions; Next-to-leading-order computation
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.11770/158663
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