Stop Lepton Associated Production at Hadron Colliders

Details Stop Lepton Associated Production at Hadron Colliders Stop Lepton Associated Production at Hadron Colliders

2002-11-28

arxiv.org/abs/hep-ph/0211441v1

Phys.Lett.B558:165-172,2003

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages and 4 figures

Scientific paper

10.1016/S0370-2693(03)00266-1

At hadron colliders, the search for R-parity violating supersymmetry can probe scalar masses beyond what is covered by pair production processes. We evaluate the next-to-leading order SUSY-QCD corrections to the associated stop or sbottom production with a lepton through R-parity violating interactions. We show that higher order corrections render the theoretical predictions more stable with respect to variations of the renormalization and factorization scales and that the total cross section is enhanced by a factor up to 70% at the Tevatron and 50% at the LHC. We investigate in detail how the heavy supersymmetric states decouple from the next-to-leading order process, which gives rise to a theory with an additional scalar leptoquark. In this scenario the inclusion of higher order QCD corrections increases the Tevatron reach on leptoquark masses by up to 40 GeV and the LHC reach by up to 200 GeV.

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