Higher-order soft corrections to squark hadro-production

Details Higher-order soft corrections to squark hadro-production Higher-order soft corrections to squark hadro-production

2009-01-07

arxiv.org/abs/0901.0802v2

Phys.Lett.B675:210-221,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

18 pages, 20 figures, minor changes

Scientific paper

We present new predictions for the total cross section of squark pair-production at Tevatron and LHC through next-to-next-to-leading order within the Minimal Supersymmetric Standard Model. The results are based on the numerically dominant soft corrections. They are exact in all logarithmically enhanced terms near threshold, include the Coulomb corrections at two loops and exact scale dependence. We translate the increased total cross section at next-to-next-to-leading order into improved exclusion limits for squark masses and we investigate the scale dependence as well as the sensitivity on the parton luminosity.

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