Search for high mass dilepton resonances in $pp$ collisions at $\\sqrts=7$ TeV with the ATLAS experiment
Journal
Physics Letters
Journal Volume
B700
Pages
163-180
Date Issued
2011
Author(s)
Aad, Georges
Abstract
This Letter presents a search for high mass e + e -or + -resonances in pp collisions at s = 7 TeV at the LHC. The data were recorded by the ATLAS experiment during 2010 and correspond to a total integrated luminosity of 40 pb -1 . No statistically significant excess above the Standard Model expectation is observed in the search region of dilepton invariant mass above 110 GeV. Upper limits at the 95% confidence level are set on the cross section times branching ratio of Z resonances decaying to dielectrons and dimuons as a function of the resonance mass. A lower mass limit of 1.048 TeV on the Sequential Standard Model Z boson is derived, as well as mass limits on Z * and E 6 -motivated Z models.
Type
journal article