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Search for neutral color-octet weak-triplet scalar particles in proton-proton collisions at √s= 8TeV

ArticleAçık Erişim

Özet

Abstract: A search for pair production of neutral color-octet weak-triplet scalar particles (Θ0) is performed in processes where one Θ0 decays to a pair of b quark jets and the other to a Z boson plus a jet, with the Z boson decaying to a pair of electrons or muons. The search is performed with data collected by the CMS experiment at the CERN LHC corresponding to an integrated luminosity of 19.7 fb−1 of proton-proton collisions at √s = 8TeV. The number of observed events is found to be in agreement with the standard model predictions. The 95% confidence level upper limit on the product of the cross section and branching fraction is obtained as a function of the Θ0 mass. The 95% confidence level lower bounds on the Θ0 mass are found to be 623 and 426 GeV, for two different octo-triplet theoretical scenarios. These are the first direct experimental bounds on particles predicted by the octo-triplet model. © 2015, The Author(s).

Anahtar Kelimeler

ExoticsHadron-Hadron Scattering
RDL Kalıcı Bağlantı (PID)
https://rdlopen.rawdatalibrary.net/r/ebyu/15479Resmi atıflarda kullanılan kalıcı adres
DOI
https://doi.org/10.1007/jhep09(2015)201Yayıncı resmi DOI adresi
Tam Kayıt
AlanDeğerDil
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.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.authorOchesanu, S.
dc.contributor.authorRougny, R.
dc.contributor.authorVan De Klundert, M.
dc.contributor.authorVan Haevermaet, H.
dc.contributor.authorVan Mechelen, P.
dc.contributor.authorVan Remortel, N.
dc.date.accessioned2026-10-18T20:30:19.370545646Z
dc.date.available2026-10-18T20:30:19.370545646Z
dc.date.issued2015
dc.description.abstractAbstract: A search for pair production of neutral color-octet weak-triplet scalar particles (Θ0) is performed in processes where one Θ0 decays to a pair of b quark jets and the other to a Z boson plus a jet, with the Z boson decaying to a pair of electrons or muons. The search is performed with data collected by the CMS experiment at the CERN LHC corresponding to an integrated luminosity of 19.7 fb−1 of proton-proton collisions at √s = 8TeV. The number of observed events is found to be in agreement with the standard model predictions. The 95% confidence level upper limit on the product of the cross section and branching fraction is obtained as a function of the Θ0 mass. The 95% confidence level lower bounds on the Θ0 mass are found to be 623 and 426 GeV, for two different octo-triplet theoretical scenarios. These are the first direct experimental bounds on particles predicted by the octo-triplet model. © 2015, The Author(s).
dc.description.sponsorshipAustrian Science Fund; Biomedical Engineering Society; Bundesministerium für Bildung und Forschung; Bundesministerium für Wissenschaft, Forschung und Wirtschaft; Canadian Anesthesiologists' Society ; Centre National de la Recherche Scientifique; Children's Specialists Foundation; Commissariat à l'Énergie Atomique et aux Énergies Alternatives; Consejo Nacional de Ciencia y Tecnología; Conselho Nacional de Desenvolvimento Científico e Tecnológico; Coordenação de Aperfeiçoamento de Pessoal de Nível Superior; Department of Atomic Energy, Government of India; Department of Science and Technology, Ministry of Science and Technology; Deutsche Forschungsgemeinschaft; Fonds De La Recherche Scientifique - FNRS; Fonds Wetenschappelijk Onderzoek; Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro; Fundação de Amparo à Pesquisa do Estado de São Paulo; Fundação para a Ciência e a Tecnologia; General Secretariat for Research and Technology; Institute for Research in Fundamental Sciences; Istituto Nazionale di Fisica Nucleare; Ministry of Business, Innovation and Employment; Ministry of Science ICT and Future Planning; National Academy of Sciences of Ukraine; National Natural Science Foundation of China; National Research Foundation of Korea; National Science Foundation; National Science and Technology Development Agency; Országos Tudományos Kutatási Alapprogramok; Research Promotion Foundation; Russian Academy of Sciences; Russian Foundation for Basic Research; Science Foundation Ireland; Science and Technology Facilities Council; Secretaría de Estado de Investigación, Desarrollo e Innovación; U.S. Department of Energy; National Science Foundation, NSF, (1120138, 1151640, 1206044, 1211067, 1306951, 1314131, 1506130, 1506168, 1508869); National Science Foundation, NSF; Science and Technology Facilities Council, STFC, (GRIDPP, ST/I005912/1, ST/J004871/1, ST/J004901/1, ST/J005479/1, ST/J005665/1, ST/J50094X/1, ST/K001256/1, ST/K001531/1, ST/K001604/1, ST/K001639/1, ST/K003844/1, ST/L00609X/1, ST/M004775/1, ST/M005356/1, ST/N000250/1); Science and Technology Facilities Council, STFC; Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung, SNF, (153664); Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung, SNF
dc.identifier.doi10.1007/jhep09(2015)201
dc.identifier.issn1029-8479
dc.identifier.issue9
dc.identifier.scopus2-s2.0-84943751990
dc.identifier.startpage201
dc.identifier.urihttps://rdlopen.rawdatalibrary.net/r/ebyu/15479
dc.identifier.volume2015
dc.language.isoen
dc.publisherSpringer Science and Business Media Deutschland GmbH
dc.relation.ispartofJournal of High Energy Physics
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectExotics
dc.subjectHadron-Hadron Scattering
dc.titleSearch for neutral color-octet weak-triplet scalar particles in proton-proton collisions at √s= 8TeV
dc.typeArticle
dspace.entity.typePublication
rdl.citation.scopus2
rdl.oa.statusgold
rdl.source.indexSCOPUS