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Titles listA search for prompt lepton-jets in pp collisions at √s = 7 TeV with the ATLAS detector
Titles listA search for prompt lepton-jets in pp collisions at √s = 7 TeV with the ATLAS detector
Scientific Article
unige:38970 
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A search for prompt lepton-jets in pp collisions at √s = 7 TeV with the ATLAS detector |
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| Collaboration | With : Abdelalim Aly, Ahmed Aly / Alexandre, Gauthier / Backes, Moritz / Barone, Gaetano / Bell, Paul / Bell, William / Benhar Noccioli, Eleonora / Bucci, Francesca / Clark, Allan Geoffrey / Doglioni, Caterina / Ferrere, Didier / Gadomski, Szymon / Gonzalez Sevilla, Sergio / Goulette, Marc / Iacobucci, Giuseppe / La Rosa, Alessandro / Lister, Alison / Martin Dit Latour, Bertrand / Mermod, Philippe / Mora Herrera, Maria Clemencia Rosario / Nektarijevic, Snezana / Nikolics, Katalin / Pasztor, Arpad / Picazio, Attilio / Pohl, Martin / Rosbach, Kilian / Rosselet, Laurent / Wu, Xin | |
| Published in | Physics Letters. B. 2013, vol. 719, no. 4-5, p. 299-317 | |
| Abstract | We present a search for a light (mass <2GeV) boson predicted by Hidden Valley supersymmetric models that decays into a final state consisting of collimated muons or electrons, denoted “lepton-jets”. The analysis uses 5fb−1 of √s=7TeV proton–proton collision data recorded by the ATLAS detector at the Large Hadron Collider to search for the following signatures: single lepton-jets with at least four muons; pairs of lepton-jets, each with two or more muons; and pairs of lepton-jets with two or more electrons. This study finds no statistically significant deviation from the Standard Model prediction and places 95% confidence-level exclusion limits on the production cross section times branching ratio of light bosons for several parameter sets of a Hidden Valley model. | |
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Article (Published version) (1.3 MB) - Limited access to UNIGE Other version: http://www.sciencedirect.com/science/article/pii/S0370269313000750 |
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| Citation (ISO format) | ATLAS COLLABORATION. A search for prompt lepton-jets in pp collisions at √s = 7 TeV with the ATLAS detector. In: Physics Letters. B, 2013, vol. 719, n° 4-5, p. 299-317. https://archive-ouverte.unige.ch/unige:38970 |
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