Search for Higgs boson decays to a photon and a Z boson in pp collisions at root s=7 and 8 TeV with the ATLAS detector
- NázevTitle
- Search for Higgs boson decays to a photon and a Z boson in pp collisions at root s=7 and 8 TeV with the ATLAS detectorSearch for Higgs boson decays to a photon and a Z boson in pp collisions at root s=7 and 8 TeV with 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, B. Sopko, V. Sopko, I. Štekl, D. Tureček, M. Vlasák, P. Vokáč, Z. Vykydal, M. Suk
- DOIDOI
- 10.1016/j.physletb.2014.03.015
- Časopis / citaceJournal / citation
- Physics Letters B. 2014, 732 8-27. ISSN 0370-2693.
- RokYear
- 2014
- JazykLanguage
- eng
- WoSWoS
- 000335307900002
- ScopusScopus
- 2-s2.0-84896477696
- RIVRIV
- RIV/68407700:21110/14:00225787!RIV15-MSM-21110___
- ProjektProject
- Mezinárodní experiment ATLAS-CERNInternational Experiment ATLAS-CERN; 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
AbstraktAbstract
A search is reported for a neutral Higgs boson in the decay channel H -> Z gamma, Z -> l(+)l(-) (l = e, mu), using 4.5 fb(-1) of pp collisions at root s = 7 TeV and 20.3 fb(-1) of pp collisions at root s = 8 TeV, recorded by the ATLAS detector at the CERN Large Hadron Collider. The observed distribution of the invariant mass of the three final-state particles, m(ll gamma), is consistent with the Standard Model hypothesis in the investigated mass range of 120-150 GeV. For a Higgs boson with a mass of 125.5 GeV, the observed upper limit at the 95% confidence level is 11 times the Standard Model expectation. Upper limits are set on the cross section times branching ratio of a neutral Higgs boson with mass in the range 120-150 GeV between 0.13 and 0.5 pb for root s = 8 TeV at 95% confidence level. (C) 2014 The Authors. Published by Elsevier B.V.
A search is reported for a neutral Higgs boson in the decay channel H -> Z gamma, Z -> l(+)l(-) (l = e, mu), using 4.5 fb(-1) of pp collisions at root s = 7 TeV and 20.3 fb(-1) of pp collisions at root s = 8 TeV, recorded by the ATLAS detector at the CERN Large Hadron Collider. The observed distribution of the invariant mass of the three final-state particles, m(ll gamma), is consistent with the Standard Model hypothesis in the investigated mass range of 120-150 GeV. For a Higgs boson with a mass of 125.5 GeV, the observed upper limit at the 95% confidence level is 11 times the Standard Model expectation. Upper limits are set on the cross section times branching ratio of a neutral Higgs boson with mass in the range 120-150 GeV between 0.13 and 0.5 pb for root s = 8 TeV at 95% confidence level. (C) 2014 The Authors. Published by Elsevier B.V.