Auteur(s): Aad G., Albrand S., Brown J., Buat Q., Clement B., Collot J., Crépé-Renaudin S., Dechenaux B., Delemontex T., Delsart P.A., Gabaldon C., Genest M.H., Hostachy J.Y., Laisne E., Le B.T., Ledroit-Guillon F., Lleres A., Lucotte A., Malek F., Monini C., Stark J., Sun X., Trocmé B., Rahal G., Abdel Khalek S., Augé E., Bassalat A., Binet S., Bourdarios C., Ughetto M.
(Article) Publié:
Physical Review Letters, vol. 112 p.091804 (2014)
Texte intégral en Openaccess : 
PMID 24655244
Ref Arxiv: 1311.2006
DOI: 10.1103/PhysRevLett.112.091804
WoS: 000332687600001
Ref. & Cit.: NASA ADS
27 Citations
Résumé:
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.
Commentaires: See paper for full list of authors - 6 pages plus author list (20 pages total), 2 figures, 2 tables, submitted to Physical Review Letters, All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/EXOT-2013-03/