Transverse-Momentum Resummation for Slepton-Pair Production at the LHC

Details Transverse-Momentum Resummation for Slepton-Pair Production at the LHC Transverse-Momentum Resummation for Slepton-Pair Production at the LHC

2006-03-09

arxiv.org/abs/hep-ph/0603074v1

Phys.Rev.D74:015001,2006

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, 2 figures

Scientific paper

10.1103/PhysRevD.74.015001

We perform a first precision calculation of the transverse-momentum (q_T) distribution of slepton pair and slepton-sneutrino associated production at the CERN Large Hadron Collider (LHC). We implement soft-gluon resummation at the next-to-leading logarithmic (NLL) level and consistently match the obtained result to the pure fixed-order perturbative result at leading order (LO) in the QCD coupling constant, i.e. O(alpha_s). We give numerical predictions for stau_1 stau_1^* and stau_1 sneutrino_tau^* + stau_1^* sneutrino_tau production, also implementing recent parameterizations of non-perturbative effects. The results show a relevant contribution of resummation both in the small and intermediate q_T-regions and little dependence on unphysical scales and non-perturbative contributions.

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