Search for a heavy neutral particle decaying into an electron and a muon using 1 fb^(-1) of ATLAS data
2011
Abstract
A search is presented for a high mass neutral particle that decays directly to the e(+/-) mu(-/+) final state. The data sample was recorded by the ATLAS detector in root 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 e(+/-) mu(-/+) mass region is used to set 95% confidence level upper limits on the production of two possible new physics processes: tau s-neutrinos in an R-parity violating supersymmetric model and Z'-like vector bosons in a lepton flavor violating model.