Combined search for anomalous pseudoscalar HVV couplings in VH(H→bb‾) production and H → VV decay

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A search for anomalous pseudoscalar couplings of the Higgs boson H to electroweak vector bosons V (=W or Z) in a sample of proton–proton collision events corresponding to an integrated luminosity of 18.9 fb−1 at a center-of-mass energy of 8 TeV is presented. Events consistent with the topology of associated VH production, where the Higgs boson decays to a pair of bottom quarks and the vector boson decays leptonically, are analyzed. The consistency of data with a potential pseudoscalar contribution to the HVV interaction, expressed by the effective pseudoscalar cross section fractions fa, is assessed by means of profile likelihood scans. Results are given for the VH channels alone and for a combined analysis of the VH and previously published H→VV channels. Under certain assumptions, fa ZZ>0.0034 is excluded at 95% confidence level in the combination. Scenarios in which these assumptions are relaxed are also considered. © 2016 The Author

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dc.contributor.authorKhachatryan, V.
dc.contributor.authorSirunyan, A.M.
dc.contributor.authorTumasyan, A.
dc.contributor.authorAdam, W.
dc.contributor.authorAsilar, E.
dc.contributor.authorBergauer, T.
dc.contributor.authorBrandstetter, J.
dc.contributor.authorBrondolin, E.
dc.contributor.authorDragicevic, M.
dc.contributor.authorErö, J.
dc.contributor.authorFlechl, M.
dc.contributor.authorFriedl, M.
dc.contributor.authorFrühwirth, R.
dc.contributor.authorGhete, V.M.
dc.contributor.authorHartl, C.
dc.contributor.authorHörmann, N.
dc.contributor.authorHrubec, J.
dc.contributor.authorJeitler, M.
dc.contributor.authorKnünz, V.
dc.contributor.authorKönig, A.
dc.contributor.authorKrammer, M.
dc.contributor.authorKrätschmer, I.
dc.contributor.authorLiko, D.
dc.contributor.authorMatsushita, T.
dc.contributor.authorMikulec, I.
dc.contributor.authorRabady, D.
dc.contributor.authorRad, N.
dc.contributor.authorRahbaran, B.
dc.contributor.authorRohringer, H.
dc.contributor.authorSchieck, J.
dc.contributor.authorSchöfbeck, R.
dc.contributor.authorStrauss, J.
dc.contributor.authorTreberer-Treberspurg, W.
dc.contributor.authorWaltenberger, W.
dc.contributor.authorWulz, C.-E.
dc.contributor.authorMossolov, V.
dc.contributor.authorShumeiko, N.
dc.contributor.authorSuarez Gonzalez, J.
dc.contributor.authorAlderweireldt, S.
dc.contributor.authorCornelis, T.
dc.contributor.authorDe Wolf, E.A.
dc.contributor.authorJanssen, X.
dc.contributor.authorKnutsson, A.
dc.contributor.authorLauwers, J.
dc.contributor.authorLuyckx, S.
dc.contributor.authorVan De Klundert, M.
dc.contributor.authorVan Haevermaet, H.
dc.contributor.authorVan Mechelen, P.
dc.contributor.authorVan Remortel, N.
dc.contributor.authorVan Spilbeeck, A.
dc.date.accessioned2026-10-18T20:29:28.893816243Z
dc.date.available2026-10-18T20:29:28.893816243Z
dc.date.issued2016
dc.description.abstractA search for anomalous pseudoscalar couplings of the Higgs boson H to electroweak vector bosons V (=W or Z) in a sample of proton–proton collision events corresponding to an integrated luminosity of 18.9 fb−1 at a center-of-mass energy of 8 TeV is presented. Events consistent with the topology of associated VH production, where the Higgs boson decays to a pair of bottom quarks and the vector boson decays leptonically, are analyzed. The consistency of data with a potential pseudoscalar contribution to the HVV interaction, expressed by the effective pseudoscalar cross section fractions fa, is assessed by means of profile likelihood scans. Results are given for the VH channels alone and for a combined analysis of the VH and previously published H→VV channels. Under certain assumptions, fa ZZ>0.0034 is excluded at 95% confidence level in the combination. Scenarios in which these assumptions are relaxed are also considered. © 2016 The Author
dc.description.sponsorshipFunding text 1: Individuals have received support from the Marie-Curie programme and the European Research Council and EPLANET (European Union); the Leventis Foundation ; the Alfred P. Sloan Foundation ; the Alexander von Humboldt Foundation ; the Belgian Federal Science Policy Office ; the Fonds pour la Formation à la Recherche dans l'Industrie et dans l'Agriculture (FRIA-Belgium); the Agentschap voor Innovatie door Wetenschap en Technologie (IWT-Belgium); the Ministry of Education, Youth and Sports (MEYS) of the Czech Republic; the Council of Science and Industrial Research , India; the HOMING PLUS programme of the Foundation for Polish Science , cofinanced from European Union, Regional Development Fund; the OPUS programme of the National Science Centre (Poland); the Compagnia di San Paolo (Torino); MIUR project 20108T4XTM (Italy); the Thalis and Aristeia programmes cofinanced by EU-ESF and the Greek NSRF ; the National Priorities Research Program by Qatar National Research Fund ; the Rachadapisek Sompot Fund for Postdoctoral Fellowship , Chulalongkorn University (Thailand); the Chulalongkorn Academic into Its 2nd Century Project Advancement Project (Thailand); and the Welch Foundation , contract C-1845 .; Funding text 2: We congratulate our colleagues in the CERN accelerator departments for the excellent performance of the LHC and thank the technical and administrative staffs at CERN and at other CMS institutes for their contributions to the success of the CMS effort. In addition, we gratefully acknowledge the computing centres and personnel of the Worldwide LHC Computing Grid for delivering so effectively the computing infrastructure essential to our analyses. Finally, we acknowledge the enduring support for the construction and operation of the LHC and the CMS detector provided by the following funding agencies: BMWFW and FWF (Austria); FNRS and FWO (Belgium); CNPq , CAPES , FAPERJ , and FAPESP (Brazil); MES (Bulgaria); CERN ; CAS , MoST , and NSFC (China); COLCIENCIAS (Colombia); MSES and CSF (Croatia); RPF (Cyprus); MoER , ERC IUT and ERDF (Estonia); Academy of Finland , MEC , and HIP (Finland); CEA and CNRS/IN2P3 (France); BMBF , DFG , and HGF (Germany); GSRT (Greece); OTKA and NIH (Hungary); DAE and DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); MSIP and NRF (Republic of Korea); LAS (Lithuania); MOE and UM (Malaysia); CINVESTAV , CONACYT , SEP , and UASLP-FAI (Mexico); MBIE (New Zealand); PAEC (Pakistan); MSHE and NSC (Poland); FCT (Portugal); JINR (Dubna); MON , RosAtom , RAS and RFBR (Russia); MESTD (Serbia); SEIDI and CPAN (Spain); Swiss Funding Agencies (Switzerland); MST (Taipei); ThEPCenter , IPST , STAR and NSTDA (Thailand); TUBITAK and TAEK (Turkey); NASU and SFFR (Ukraine); STFC (United Kingdom); DOE and NSF (USA).
dc.identifier.doi10.1016/j.physletb.2016.06.004
dc.identifier.endpage696
dc.identifier.issn0370-2693
dc.identifier.scopus2-s2.0-84976291771
dc.identifier.startpage672
dc.identifier.urihttps://rdlopen.rawdatalibrary.net/r/ebyu/14685
dc.identifier.volume759
dc.language.isoen
dc.publisherElsevier B.V.
dc.relation.ispartofPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectBSM
dc.subjectCMS
dc.subjectHiggs
dc.subjectPhysics
dc.titleCombined search for anomalous pseudoscalar HVV couplings in VH(H→bb‾) production and H → VV decay
dc.typeArticle
dspace.entity.typePublication
rdl.citation.scopus51
rdl.oa.statusgold
rdl.source.indexSCOPUS