Scientific article
Open access

Search for high mass dilepton resonances in pp collisions at √s=7 TeV with the ATLAS experiment

ContributorsATLAS Collaboration
Published inPhysics letters. B, vol. 700, no. 3-4, p. 163-180
Publication date2011

This Letter presents a search for high mass e+e− or μ+μ−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 E6-motivated Z′ models.

  • Grand unified theory
  • Narrow resonance
  • New gauge boson
  • Z′
  • Dilepton
  • Mass spectrum
Citation (ISO format)
ATLAS Collaboration. Search for high mass dilepton resonances in <em>pp</em> collisions at √s=7 TeV with the ATLAS experiment. In: Physics letters. B, 2011, vol. 700, n° 3-4, p. 163–180. doi: 10.1016/j.physletb.2011.04.044
Main files (1)
Article (Published version)
ISSN of the journal0370-2693

Technical informations

Creation10/24/2014 1:28:00 PM
First validation10/24/2014 1:28:00 PM
Update time03/14/2023 10:09:32 PM
Status update03/14/2023 10:09:32 PM
Last indexation10/18/2023 8:16:47 PM
All rights reserved by Archive ouverte UNIGE and the University of GenevaunigeBlack