Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2002-07-19
Nucl.Phys. B660 (2003) 343-361
Physics
High Energy Physics
High Energy Physics - Phenomenology
21 pages, 8 figures
Scientific paper
10.1016/S0550-3213(03)00233-5
We consider resonant production of sneutrino and slepton at hadronic colliders such as the Tevatron and the LHC within the context of a R-parity violating supersymmetric model. We present next to leading order QCD corrections to total cross sections which originate from both quark- as well as gluon-initiated processes. For couplings involving only the first generation quarks, the K factor at the Tevatron can be as large as 1.5 for a 100 GeV sfermion and falls to nearly 1.1 as the sfermion mass reaches 1 TeV. At the LHC, the variation is between 1.2 and 1.45 for masses less than 2 TeV. While the dependence on the parton density parametrization is found to be mild, this ceases to be true if the strange quark plays a dominant role in the production process. We also study the renormalization and factorization-scale dependence and find it to be less pronounced for the NLO cros sections as compared to the LO. The results obtained in this article are also applicable to resonant production of any color-neutral scalar.
Choudhury Debajyoti
Majhi Swapan
Ravindran V.
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