### PUBLICATIONS

[submitted] Journal of High Energy Physics
 << Back Search for long-lived neutral particles decaying into lepton jets in proton--proton collisions at √s = 8 TeV with the ATLAS detector s√8 TeV with the ATLAS detector ATLAS Collaboration (Georges Aad (Marseille, CPPM) et al.) Show all 2903 authors Sep 2, 2014 - 30 pages CERN-PH-EP-2014-209 e-Print: arXiv:1409.0746 [hep-ex] | PDF Abstract (arXiv) Several models of physics beyond the Standard Model predict neutral particles that decay into final states consisting of collimated jets of light leptons and hadrons (so-called "lepton jets"). These particles can also be long-lived with decay length comparable to, or even larger than, the LHC detectors' linear dimensions. This paper presents the results of a search for lepton jets in proton--proton collisions at the centre-of-mass energy of √s = 8 TeV in a sample of 20.3 fb−1 collected during 2012 with the ATLAS detector at the LHC. Limits on models predicting Higgs boson decays to neutral long-lived lepton jets are derived as a function of the particle's proper decay length. Note: *Temporary entry*  Note: 30 pages plus author list + cover pages (53 pages total), 17 figures, 11 tables, submitted to JHEP. Replacement of authorlist. All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/EXOT-2013-22/  Keyword(s): INSPIRE: * Automatic Keywords * | decay: length | lepton: long-lived | neutral particle: long-lived | Higgs particle: decay | CERN LHC Coll| ATLAS | new physics | collimator | hadron   << Back Date: 30.09.2014 11:51:39 Count: 351