arXiv subjects

Jeppe R. Andersen

Publications and source records attributed to Jeppe R. Andersen.

56 records · Page 4Linked to original sources

arXiv2002

Forward Jets and BFKL at Hadron Colliders

We present results on dijet and W+dijet production at hadron colliders obtained by supplementing the leading log BFKL resummation with energy and momentum conservation. For pure dijet production, the inclusion of the BFKL radiation in the energy conservation leads to a decrease in the parton flux sufficient to counter-act the expected exponential increase in the cross section obtained for the partonic cross section. Other BFKL signatures such as the dijet azimuthal angle decorrelation do still survive.

hep-ph↗

arXiv2000

Renormalon Model of Twist-4 Corrections to the Pion Distribution Amplitude

In this paper we describe a renormalon-inspired model of twist--4 power corrections to the light-cone pion distribution amplitude, and compare it to the results obtained using the conformal wave expansion. We find that the overall functional form predicted in this renormalon model is similar to the one predicted in the standard approach to higher twist contributions involving an expansion in conformal operators. However, small discrepancies at the end-points allow for a discussion on the convergence properties of the conformal expansion.

hep-ph↗