Search for a heavy neutral particle decaying into an electron and a muon using 1 fb^-1 of ATLAS data

Details Search for a heavy neutral particle decaying into an electron and a muon using 1 fb^-1 of ATLAS data Search for a heavy neutral particle decaying into an electron and a muon using 1 fb^-1 of ATLAS data

2011-09-14

arxiv.org/abs/1109.3089v3

Eur.Phys.J.C 71 (2011) 1809

Physics

High Energy Physics

High Energy Physics - Experiment

5 pages plus author list (17 pages total), 3 figures, 2 tables, final version published in European Physical Journal C (Letter

Scientific paper

10.1140/epjc/s10052-011-1809-9

A search is presented for a high mass neutral particle that decays directly to the emu final state. The data sample was recorded by the ATLAS detector in sqrt(s) = 7 TeV pp collisions at the LHC from March to June 2011 and corresponds to an integrated luminosity of 1.07 fb^-1. The data are found to be consistent with the Standard Model background. The high emu mass region is used to set 95% confidence level upper limits on the production of two possible new physics processes: tau sneutrinos in an R-parity violating supersymmetric model and Z'-like vector bosons in a lepton flavor violating model.

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