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arXiv:0905.4671
KA-TP-04-2009
MAN-HEP-2009-18
CERN-PH-TH-2009-066
MCNET-09-11
HERWIG-09-05

by: Bahr, Manuel (Karlsruhe U., ITP) et al.

Abstract:
We describe the recent developments to extend the multi-parton interaction model of underlying events in Herwig++ into the soft, non-perturbative, regime. This allows the program to describe also minimum bias collisions in which there is no hard interaction, for the first time. It is publicly available from versions 2.3 onwards and describes the Tevatron underlying event and minimum bias data. The extrapolations to the LHC nevertheless suffer considerable ambiguity, as we discuss.
Link: 
http://inspirehep.net/record/821555
Publ date: 
Wednesday, May 27, 2009 - 23:00