# Search for high-mass dilepton resonances in pp collisions at sqrt(s) = 8 TeV with the ATLAS detector

Abstract : The ATLAS detector at the Large Hadron Collider is used to search for high-mass resonances decaying to dielectron or dimuon final states. Results are presented from an analysis of proton-proton (pp) collisions at a center-of-mass energy of 8 TeV corresponding to an integrated luminosity of 20.3 fb-1 in the dielectron channel and 20.5 fb-1 in the dimuon channel. A narrow resonance with Standard Model Z couplings to fermions is excluded at 95% confidence level for masses less than 2.79 TeV in the dielectron channel, 2.53 TeV in the dimuon channel, and 2.90 TeV in the two channels combined. Limits on other model interpretations are also presented, including a grand-unification model based on the E6 gauge group, Z* bosons, Minimal Z' Models, a spin-2 graviton excitation from Randall-Sundrum models, quantum black holes and a Minimal Walking Technicolor model with a composite Higgs boson.
Document type :
Journal articles

http://hal.in2p3.fr/in2p3-00992594
Contributor : Emmanuelle Vernay <>
Submitted on : Monday, May 19, 2014 - 9:11:22 AM
Last modification on : Thursday, November 26, 2020 - 3:39:06 PM

### Citation

G. Aad, S. Albrand, J. Brown, J. Collot, S. Crépé-Renaudin, et al.. Search for high-mass dilepton resonances in pp collisions at sqrt(s) = 8 TeV with the ATLAS detector. Physical Review D, American Physical Society, 2014, 90, pp.052005. ⟨10.1103/PhysRevD.90.052005⟩. ⟨in2p3-00992594⟩

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