Effects of QCD radiation on inclusive variables for determining the scale of new physics at hadron colliders

Details Effects of QCD radiation on inclusive variables for determining the scale of new physics at hadron colliders Effects of QCD radiation on inclusive variables for determining the scale of new physics at hadron colliders

2009-03-11

arxiv.org/abs/0903.2013v2

JHEP 0906:069,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

16 pages, 6 figures; v2 published version with added references

Scientific paper

10.1088/1126-6708/2009/06/069

We examine the effects of QCD initial-state radiation on a class of quantities, designed to probe the mass scale of new physics at hadron colliders, which involve longitudinal as well as transverse final-state momenta. In particular, we derive universal functions that relate the invariant mass and energy distribution of the visible part of the final state to that of the underlying hard subprocess. Knowledge of this relationship may assist in checking hypotheses about new processes, by providing additional information about their scales. We compare our results with those of Monte Carlo studies and find good general agreement.

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