Search for Quantum Black Hole Production in High-Invariant-Mass Lepton++Jet Final States Using pppp Collisions at s=\sqrt{s} = 8 TeV and the ATLAS Detector

Collaboration
Nov 8, 2013
18 pages
Published in:
  • Phys.Rev.Lett. 112 (2014) 9, 091804
  • Published: Mar 5, 2014
e-Print:
Report number:
  • CERN-PH-EP-2013-193
Experiments:

Citations per year

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Abstract: (APS)

This Letter presents a search for quantum black-hole production using 20.3fb1 of data collected with the ATLAS detector in pp collisions at the LHC at s=8TeV. The quantum black holes are assumed to decay into a final state characterized by 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.

Note:
  • 04.50.Gh
  • 04.50.Cd
  • 13.85.Qk
  • black hole: quantum
  • black hole
  • black hole: decay
  • black hole: mass: lower limit
  • mass: threshold
  • p p: scattering
  • mass spectrum: (jet lepton)
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