Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2008-09-26
Physics
High Energy Physics
High Energy Physics - Phenomenology
12 pages including 4 EPS figures; updated version recomputes signal and background rates for LHC collisions at 10 TeV
Scientific paper
10.1016/j.physletb.2009.03.002
In the very early stages of LHC running, uncertainties in detector performance will lead to large ambiguities in jet, electron and photon energy measurements, along with inferred missing transverse energy. However, muon detection should be quite straightforward, with the added benefit that muons can be reliably detected down to transverse energies of order 5 GeV. Supersymmetry discovery through multimuon channels has been extensively explored in the literature, but always relying on hard ET^miss cuts. Here, we quantify signal and background rates for same-sign (SS) dimuon and multimuon production at the LHC without any ET^miss cuts. The LHC, operating at \sqrt{s}=10 TeV, should be able to discover a signal over expected background consistent with gluino pair production for m_{\tg}\alt 450 (550) GeV in the SS dimuon plus \ge 4 jets state with just 0.1 (0.2) fb^{-1} of integrated luminosity.
Baer Howard
Lessa Andre
Summy Heaya
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