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Transverse-momentum resummation for slepton-pair production at the CERN Large Hadron Collider

Abstract : 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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http://hal.in2p3.fr/in2p3-00025783
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Submitted on : Wednesday, March 15, 2006 - 3:22:55 PM
Last modification on : Monday, July 20, 2020 - 9:18:27 AM

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G. Bozzi, B. Fuks, M. Klasen. Transverse-momentum resummation for slepton-pair production at the CERN Large Hadron Collider. Physical Review D, American Physical Society, 2006, 74, pp.015001. ⟨10.1103/PhysRevD.74.015001⟩. ⟨in2p3-00025783⟩

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