Search for supersymmetry at the CMS in all-hadronic final state

Details Search for supersymmetry at the CMS in all-hadronic final state Search for supersymmetry at the CMS in all-hadronic final state

2009-10-17

arxiv.org/abs/0910.3310v1

Physics

High Energy Physics

High Energy Physics - Experiment

To be published in the proceedings of DPF-2009, Detroit, MI, July 2009, eConf C090726

Scientific paper

We present a search for supersymmetry (SUSY) in the fully hadronic final state with the CMS detector at the LHC. This final state contains at least two jets and a significant transverse energy imbalance due to neutralinos escaping detection. The background to all-hadronic signature arise from QCD multijet production, ttbar and electroweak boson+jet production. These background can be estimated by utilizing a data-driven approach using events thus enabling a possible discovery of SUSY in the early physics data. In addition to the generic search, we also present an analysis which utilizes a new quantity, alpha_T, constructed exclusively from the transverse energies of the jets to effectively eliminate the QCD background.

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