Light Stop Searches at the LHC with Monojet Events

Details Light Stop Searches at the LHC with Monojet Events Light Stop Searches at the LHC with Monojet Events

2012-01-27

arxiv.org/abs/1201.5714v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages

Scientific paper

We consider light top squarks (stops) in the minimal supersymmetric Standard Model at the Large Hadron Collider. Here, we assume that the lightest neutralino is the lightest supersymmetric particle (LSP) and the lighter stop is the next-to-LSP. Stop pair production is difficult to probe at the Large Hadron Collider for small stop-LSP mass splitting. It has been shown previously that even in this case stop detection is possible if one considers stop pair production in association with one hard jet. We reconsider this supersymmetric monojet signature and go beyond previous works by including the full Standard Model background and optimizing the cuts, working at the hadron level and including detector effects. As a result, a larger portion of the stop-LSP mass plane becomes accessible to monojet searches.

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