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Search for high-mass resonances decaying to dilepton final states in pp collisions at √s=7 TeV with the ATLAS detector

ContributorsATLAS Collaboration
Published inThe journal of high energy physics, vol. 138, 45
Publication date2012
Abstract

The ATLAS detector at the Large Hadron Collider is used to search for high-mass resonances decaying to an electron-positron pair or a muon-antimuon pair. The search is sensitive to heavy neutral Z′ gauge bosons, Randall-Sundrum gravitons, Z* bosons, techni-mesons, Kaluza-Klein Z/γ bosons, and bosons predicted by Torsion models. Results are presented based on an analysis of pp collisions at a center-of-mass energy of 7 TeV corresponding to an integrated luminosity of 4.9 fb−1 in the e+e− channel and 5.0 fb−1 in the μ + μ −channel. A Z ′ boson with Standard Model-like couplings is excluded at 95 % confidence level for masses below 2.22 TeV. A Randall-Sundrum graviton with coupling k/MPl=0.1 is excluded at 95 % confidence level for masses below 2.16 TeV. Limits on the other models are also presented, including Technicolor and Minimal Z′ Models.

Keywords
  • Hadron-Hadron Scattering
Citation (ISO format)
ATLAS Collaboration. Search for high-mass resonances decaying to dilepton final states in pp collisions at √s=7 TeV with the ATLAS detector. In: The journal of high energy physics, 2012, vol. 138, p. 45. doi: 10.1007/JHEP11(2012)138
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Journal ISSN1029-8479
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