Search for anomalous production of prompt same-signlepton pairs and pair-produced doubly charged Higgs bosons with √s= 8TeV pp collisions using the ATLAS detector

0522375 - FZÚ 2020 RIV US eng J - Journal Article
Aad, G. - Abbott, B. - Abdallah, J. - Chudoba, Jiří - Havránek, Miroslav - Hejbal, Jiří - Jakoubek, Tomáš - Kepka, Oldřich - Kupčo, Alexander - Kůs, Vlastimil - Lokajíček, Miloš - Lysák, Roman - Marčišovský, Michal - Mikeštíková, Marcela - Němeček, Stanislav - Šícho, Petr - Staroba, Pavel - Svatoš, Michal - Taševský, Marek - Vrba, Václav … Total 2892 authors
Search for anomalous production of prompt same-signlepton pairs and pair-produced doubly charged Higgs bosons with √s= 8TeV pp collisions using the ATLAS detector.
Journal of High Energy Physics. Roč. 2015, č. 3 (2015), s. 1-48, č. článku 41. ISSN 1029-8479. E-ISSN 1029-8479
Institutional support: RVO:68378271
Keywords : ATLAS * CERN * Hadron-hadron scattering * beyond standard model * particle and resonance production
OECD category: Particles and field physics
Impact factor: 6.023, year: 2015
Method of publishing: Open access

A low-background inclusive search for new physics in events with same-sign dileptons is presented. The search uses proton-proton collisions corresponding to 20.3 fb−1 of integrated luminosity taken in 2012 at a centre-of-mass energy of 8 TeV with the ATLAS detector at the LHC. Pairs of isolated leptons with the same electric charge and large transverse momenta of the type e± e±, e± μ±, and μ± μ± are selected and their invariant mass distribution is examined. No excess of events above the expected level of Standard Model background is found. The results are used to set upper limits on the cross-sections for processes beyond the Standard Model. Limits are placed as a function of the dilepton invariant mass within a fiducial region corresponding to the signal event selection criteria. Exclusion limits are also derived for a specific model of doubly charged Higgs boson production.

Permanent Link: http://hdl.handle.net/11104/0306880