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Search for high-mass dilepton resonances in pp collisions at sv=8??TeV with the ATLAS detector

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journal contribution
posted on 2023-06-08, 21:41 authored by Alessandro CerriAlessandro Cerri, C Chavez Barajas, Antonella De SantoAntonella De Santo, Z J Grout, C T Potter, Fabrizio SalvatoreFabrizio Salvatore, I Santoyo Castillo, Mark SuttonMark Sutton, Iacopo Vivarelli, others (ATLAS collaboration)
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 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.

Funding

Consolidated Grant; G0927; STFC-SCIENCE AND TECHNOLOGY FACILITIES COUNCIL; ST/K001329/1

History

Publication status

  • Published

File Version

  • Published version

Journal

Physical Review D

ISSN

1550-2368

Publisher

American Physical Society

Issue

5

Volume

90

Page range

052005

Department affiliated with

  • Physics and Astronomy Publications

Notes

Part of the ATLAS Collaboration

Full text available

  • Yes

Peer reviewed?

  • Yes

Legacy Posted Date

2015-07-17

First Open Access (FOA) Date

2015-07-17

First Compliant Deposit (FCD) Date

2015-07-17

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