# Search for Quantum Black Hole Production in High-Invariant-Mass Lepton+Jet Final States Using Proton-Proton Collisions at sqrt(s) = 8 TeV and the ATLAS Detector

Abstract : This Letter presents a search for quantum black-hole production using 20.3 inverse fb of data collected with the ATLAS detector in pp collisions at the LHC at sqrt(s) = 8 TeV. The quantum black holes are assumed to decay into a lepton (electron or muon) and a jet. In either channel, no event with a lepton-jet invariant mass of 3.5 TeV or more is observed, consistent with the expected background. Limits are set on the product of cross sections and branching fractions for the lepton+jet final states of quantum black holes produced in a search region for invariant masses above 1 TeV. The combined 95% confidence level upper limit on this product for quantum black holes with threshold mass above 3.5 TeV is 0.18 fb. This limit constrains the threshold quantum black-hole mass to be above 5.3 TeV in the model considered.
Document type :
Journal articles

http://hal.in2p3.fr/in2p3-00903820
Contributor : Emmanuelle Vernay <>
Submitted on : Wednesday, November 13, 2013 - 11:00:46 AM
Last modification on : Wednesday, September 16, 2020 - 4:11:35 PM

### Citation

G. Aad, S. Albrand, J. Brown, Q. Buat, B. Clement, et al.. Search for Quantum Black Hole Production in High-Invariant-Mass Lepton+Jet Final States Using Proton-Proton Collisions at sqrt(s) = 8 TeV and the ATLAS Detector. Physical Review Letters, American Physical Society, 2014, 112, pp.091804. ⟨10.1103/PhysRevLett.112.091804⟩. ⟨in2p3-00903820⟩

Record views