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Search for contact interactions and large extra dimensions in the dilepton channel using proton-proton collisions at [Formula: see text] 8 TeV with the ATLAS detector

Aad G.
•
Abbott B.
•
Abdallah J.
altro
Atlas Collaboration
2014
  • journal article

Periodico
THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS
Abstract
A search is conducted for non-resonant new phenomena in dielectron and dimuon final states, originating from either contact interactions or large extra spatial dimensions. The LHC 2012 proton-proton collision dataset recorded by the ATLAS detector is used, corresponding to 20 fb[Formula: see text] at [Formula: see text] = 8 TeV. The dilepton invariant mass spectrum is a discriminating variable in both searches, with the contact interaction search additionally utilizing the dilepton forward-backward asymmetry. No significant deviations from the Standard Model expectation are observed. Lower limits are set on the [Formula: see text] contact interaction scale [Formula: see text] between 15.4 TeV and 26.3 TeV, at the 95 % credibility level. For large extra spatial dimensions, lower limits are set on the string scale [Formula: see text] between 3.2 TeV to 5.0 TeV.
DOI
10.1140/epjc/s10052-014-3134-6
WOS
WOS:000347212000001
Archivio
http://hdl.handle.net/11390/1110034
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84979798821
Diritti
metadata only access
Web of Science© citazioni
46
Data di acquisizione
Mar 27, 2024
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