Nils Lavesson, Leif Lönnblad
Extending CKKW-merging to One-Loop Matrix Elements


We extend earlier schemes for merging tree-level matrix elements with parton showers to include also merging with one-loop matrix elements. In this paper we make a first study on how to include one-loop corrections, not only for events with a given jet multiplicity, but simultaneously for several different jet multiplicities. Results are presented for the simplest non-trivial case of hadronic events at LEP as a proof-of-concept.

LU TP 08-20, arXiv:0811.2912 [hep-ph]