A search for resonant and non-resonant Higgs boson pair production in the bb¯τ+τ− decay channel in pp collisions at √s = 13 TeV with the ATLAS detector

0497012 - FZÚ 2019 RIV US eng J - Článek v odborném periodiku
Aaboud, M. - Aad, G. - Abbott, B. - Chudoba, Jiří - Hejbal, Jiří - Hladík, Ondřej - Jačka, Petr - Jakoubek, Tomáš - Kepka, Oldřich - Kroll, Jiří - Kupčo, Alexander - Lokajíček, Miloš - Lysák, Roman - Marčišovský, Michal - Mikeštíková, Marcela - Němeček, Stanislav - Penc, Ondřej - Šícho, Petr - Staroba, Pavel - Svatoš, Michal - Taševský, Marek … celkem 2913 autorů
A search for resonant and non-resonant Higgs boson pair production in the bb¯τ+τ− decay channel in pp collisions at √s = 13 TeV with the ATLAS detector.
Physical Review Letters. Roč. 121, č. 19 (2018), s. 1-24, č. článku 191801. ISSN 0031-9007. E-ISSN 1079-7114
Grant CEP: GA MŠMT LM2015058
Institucionální podpora: RVO:68378271
Klíčová slova: ATLAS * CERN LHC Coll * background * experimental results * 13000 GeV-cms
Obor OECD: Particles and field physics
Impakt faktor: 9.227, rok: 2018

A search for resonant and non-resonant pair production of Higgs bosons in the bb¯τ+τ− final state is presented. The search uses 36.1 fb−1 of pp collision data with s√=13 TeV recorded by the ATLAS experiment at the LHC in 2015 and 2016. The semileptonic and fully hadronic decays of the τ-lepton pair are considered. No significant excess above the expected background is observed in the data. The cross-section times branching ratio for non-resonant Higgs boson pair production is constrained to be less than 30.9 fb, 12.7 times the Standard Model expectation, at 95% confidence level. The data are also analyzed to probe resonant Higgs boson pair production, constraining a model with an extended Higgs sector based on two doublets and a Randall-Sundrum bulk graviton model.
Trvalý link: http://hdl.handle.net/11104/0289627