Search for top quark decays t -> q H with H -> gamma gamma using the ATLAS detector
- NázevTitle
- Search for top quark decays t -> q H with H -> gamma gamma using the ATLAS detectorSearch for top quark decays t -> q H with H -> gamma gamma using the ATLAS detector
- Druh výsledkuResult type
- Článek v časopiseJournal article
- AutořiAuthors
- G. Aad, T. Abajyan, B. Abbott, S.A. Khalek, O. Abdinov, K. Augsten, P. Gallus, J. Günther, J. Jakůbek, Z. Kohout, V. Král, S. Pospíšil, F. Seifert, V. Šimák, T. Slavíček, K. Smolek, J. Sodomka, M. Solar, J. Šolc, V. Sopko, B. Sopko, I. Štekl, D. Tureček, M. Vlasák, P. Vokáč, Z. Vykydal, A. Sopczak, M. Suk
- DOIDOI
- 10.1007/JHEP06(2014)008
- Časopis / citaceJournal / citation
- JOURNAL OF HIGH ENERGY PHYSICS. 2014,(6), 1-39. ISSN 1029-8479.
- RokYear
- 2014
- JazykLanguage
- eng
- WoSWoS
- 000337167700001
- ScopusScopus
- 2-s2.0-84904444313
- RIVRIV
- RIV/68407700:21110/14:00225778!RIV15-MSM-21110___
- ProjektProject
- Mezinárodní experiment ATLAS-CERNInternational experiment ATLAS-CERN; Podpora zkvalitnění týmů výzkumu a vývoje a rozvoj intersektorální mobility na ČVUT v PrazeSupport of inter-sectoral mobility and quality enhancement of research teams at Czech Technical University in Prague; Mezinárodní experiment ATLAS-CERNInternational Experiment ATLAS-CERN
AbstraktAbstract
A search is performed for flavour-changing neutral currents in the decay of a top quark to an up-type (c, u) quark and a Higgs boson, where the Higgs boson decays to two photons. The proton-proton collision data set used corresponds to 4.7 fb(-1) at root s = 7TeV and 20.3 fb(-1) at root s = 8TeV collected by the ATLAS experiment at the LHC. Top quark pair events are searched for in which one top quark decays to qH and the other decays to bW. Both the hadronic and the leptonic decay modes of the W boson are used. No significant signal is observed and an upper limit is set on the t -> qH branching ratio of 0.79% at the 95% confidence level. The corresponding limit on the tqH coupling combination root lambda(2)(tcH) + root lambda(2)(tuH) is 0.17.
A search is performed for flavour-changing neutral currents in the decay of a top quark to an up-type (c, u) quark and a Higgs boson, where the Higgs boson decays to two photons. The proton-proton collision data set used corresponds to 4.7 fb(-1) at root s = 7TeV and 20.3 fb(-1) at root s = 8TeV collected by the ATLAS experiment at the LHC. Top quark pair events are searched for in which one top quark decays to qH and the other decays to bW. Both the hadronic and the leptonic decay modes of the W boson are used. No significant signal is observed and an upper limit is set on the t -> qH branching ratio of 0.79% at the 95% confidence level. The corresponding limit on the tqH coupling combination root lambda(2)(tcH) + root lambda(2)(tuH) is 0.17.