Search for an exotic decay of the Higgs boson to a pair of light pseudoscalars in the final state with two bquarks and two tau leptons in proton-proton collisions at root s=13 TeV The CMS Collaboration

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dc.contributor.author The CMS collaboration
dc.contributor.author Sirunyan, A. M.
dc.contributor.author Eerola, P.
dc.contributor.author Kirschenmann, H.
dc.contributor.author Pekkanen, J.
dc.contributor.author Voutilainen, M.
dc.contributor.author Havukainen, J.
dc.contributor.author Heikkilä, J. K.
dc.contributor.author Järvinen, T.
dc.contributor.author Karimäki, V.
dc.contributor.author Kinnunen, R.
dc.contributor.author Lampén, T.
dc.contributor.author Lassila-Perini, K.
dc.contributor.author Laurila, S.
dc.contributor.author Lehti, S.
dc.contributor.author Lindén, T.
dc.contributor.author Luukka, P.
dc.contributor.author Mäenpää, T.
dc.contributor.author Siikonen, H.
dc.contributor.author Tuominen, E.
dc.contributor.author Tuominiemi, J.
dc.contributor.author Tuuva, T.
dc.date.accessioned 2018-12-18T13:44:01Z
dc.date.available 2018-12-18T13:44:01Z
dc.date.issued 2018-10-10
dc.identifier.citation The CMS Collaboration , Sirunyan , A M , Eerola , P , Kirschenmann , H , Pekkanen , J , Voutilainen , M , Havukainen , J , Heikkilä , J K , Järvinen , T , Karimäki , V , Kinnunen , R , Lampén , T , Lassila-Perini , K , Laurila , S , Lehti , S , Lindén , T , Luukka , P , Mäenpää , T , Siikonen , H , Tuominen , E , Tuominiemi , J & Tuuva , T 2018 , ' Search for an exotic decay of the Higgs boson to a pair of light pseudoscalars in the final state with two bquarks and two tau leptons in proton-proton collisions at root s=13 TeV The CMS Collaboration ' , Physics Letters B , vol. 785 , pp. 462-488 . https://doi.org/10.1016/j.physletb.2018.08.057
dc.identifier.other PURE: 120284414
dc.identifier.other PURE UUID: 32f74acf-00f7-4c57-8d6e-e7872fab55ec
dc.identifier.other WOS: 000447424000067
dc.identifier.other ORCID: /0000-0001-7507-8636/work/51806159
dc.identifier.other ORCID: /0000-0003-2039-5874/work/51806291
dc.identifier.other ORCID: /0000-0003-2898-6900/work/51806786
dc.identifier.other Scopus: 85053468138
dc.identifier.other ORCID: /0000-0002-5200-6477/work/61593116
dc.identifier.other ORCID: /0000-0001-7369-2536/work/61901567
dc.identifier.other ORCID: /0000-0002-7073-7767/work/61592229
dc.identifier.other ORCID: /0000-0002-0538-1469/work/68618134
dc.identifier.uri http://hdl.handle.net/10138/277651
dc.description.abstract A search for an exotic decay of the Higgs boson to a pair of light pseudoscalar bosons is performed for the first time in the final state with two b quarks and two tau leptons. The search is motivated in the context of models of physics beyond the standard model (SM), such as two Higgs doublet models extended with a complex scalar singlet (2HDM + S), which include the next-to-minimal supersymmetric SM (NMSSM). The results are based on a data set of proton-proton collisions corresponding to an integrated luminosity of 35.9 fb(-1), accumulated by the CMS experiment at the LHC in 2016 at a center-of-mass energy of 13 TeV. Masses of the pseudoscalar boson between 15 and 60 GeVare probed, and no excess of events above the SM expectation is observed. Upper limits between 3 and 12% are set on the branching fraction B(h -> aa -> 2 tau 2b) assuming the SM production of the Higgs boson. Upper limits are also set on the branching fraction of the Higgs boson to two light pseudoscalar bosons in different 2HDM + S scenarios. Assuming the SM production cross section for the Higgs boson, the upper limit on this quantity is as low as 20% for a mass of the pseudoscalar of 40 GeV in the NMSSM. (C) 2018 The Author(s). Published by Elsevier B.V. en
dc.format.extent 27
dc.language.iso eng
dc.relation.ispartof Physics Letters B
dc.rights cc_by
dc.rights.uri info:eu-repo/semantics/openAccess
dc.subject 114 Physical sciences
dc.subject CMS
dc.subject Physics
dc.subject Higgs boson
dc.subject Exotic decays
dc.subject NMSSM
dc.subject 2HDM+S
dc.subject STANDARD MODEL
dc.subject MASSLESS PARTICLES
dc.subject BROKEN SYMMETRIES
dc.subject HADRON COLLIDERS
dc.subject BREAKING
dc.subject LHC
dc.title Search for an exotic decay of the Higgs boson to a pair of light pseudoscalars in the final state with two bquarks and two tau leptons in proton-proton collisions at root s=13 TeV The CMS Collaboration en
dc.type Article
dc.contributor.organization Department of Physics
dc.contributor.organization Helsinki Institute of Physics
dc.description.reviewstatus Peer reviewed
dc.relation.doi https://doi.org/10.1016/j.physletb.2018.08.057
dc.relation.issn 0370-2693
dc.rights.accesslevel openAccess
dc.type.version publishedVersion

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