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

Khachatryan, V. and Anderson, D. and Apresyan, A. and Bornheim, A. and Bunn, J. and Chen, Y. and Duarte, J. and Mott, A. and Newman, H. B. and Pena, C. and Pierini, M. and Spiropulu, M. and Vlimant, J. R. and Xie, S. and Zhu, R. Y. (2015) Search for neutral color-octet weak-triplet scalar particles in proton-proton collisions at √s=8 TeV. Journal of High Energy Physics, 2015 (9). Art. No. 201. ISSN 1126-6708. http://resolver.caltech.edu/CaltechAUTHORS:20151103-133100393

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Abstract

A search for pair production of neutral color-octet weak-triplet scalar particles (Θ^0) 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=8 TeV. 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 Θ^0 mass. The 95% confidence level lower bounds on the Θ^0 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.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1007/JHEP09(2015)201DOIArticle
http://link.springer.com/article/10.1007%2FJHEP09%282015%29201PublisherArticle
http://arxiv.org/abs/1505.08118arXivDiscussion Paper
Additional Information:© 2015 CERN, for the benefit of the CMS Collaboration. Article funded by SCOAP3. This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited. Received: May 29, 2015; Accepted: August 25, 2015; Published: September 29, 2015. 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 centers 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 (U.S.A.). Individuals have received support from the Marie-Curie program and the European Research Council and EPLANET (European Union); the Leventis Foundation; the A. 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 program of the Foundation for Polish Science, cofinanced from European Union, Regional Development Fund; the Compagnia di San Paolo (Torino); the Consorzio per la Fisica (Trieste); MIUR project 20108T4XTM (Italy); the Thalis and Aristeia programs cofinanced by EU-ESF and the Greek NSRF; and the National Priorities Research Program by Qatar National Research Fund.
Group:CMS@Caltech
Funders:
Funding AgencyGrant Number
Bundesministerium für Wissenschaft, Forschung und Wirtschaft (BMWFW)UNSPECIFIED
FWF Der WissenschaftsfondsUNSPECIFIED
Fonds de la Recherche Scientifique (FNRS)UNSPECIFIED
Fonds Wetenschappelijk Onderzoek - Vlaanderen (FWO)UNSPECIFIED
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)UNSPECIFIED
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)UNSPECIFIED
Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ)UNSPECIFIED
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)UNSPECIFIED
MES (Bulgaria)UNSPECIFIED
CERN (China)UNSPECIFIED
Chinese Academy of SciencesUNSPECIFIED
Ministry of Science and Technology (MOST) UNSPECIFIED
National Natural Science Foundation of ChinaUNSPECIFIED
COLCIENCIAS (Colombia)UNSPECIFIED
MSES (Croatia)UNSPECIFIED
CSF (Croatia)UNSPECIFIED
RPF (Cyprus) UNSPECIFIED
MoER (Estonia)UNSPECIFIED
ERC IUT (Estonia)UNSPECIFIED
ERDF (Estonia)UNSPECIFIED
Academy of FinlandUNSPECIFIED
MEC (Finland)UNSPECIFIED
HIP (Finland)UNSPECIFIED
Commissariat à l’Energie Atomique (CEA)UNSPECIFIED
Centre National de la Recherche Scientifique (CNRS)UNSPECIFIED
Bundesministerium für Bildung und Forschung (BMBF)UNSPECIFIED
Deutsche Forschungsgemeinschaft (DFG)UNSPECIFIED
Helmholtz-Gemeinschaft Deutscher Forschungszentren (HGF) UNSPECIFIED
GSRT (Greece)UNSPECIFIED
OTKA (Hungary)UNSPECIFIED
NIH (Hungary)UNSPECIFIED
DAE (India)UNSPECIFIED
DST (India)UNSPECIFIED
IPM (Iran)UNSPECIFIED
Science Foundation, IrelandUNSPECIFIED
Istituto Nazionale di Fisica Nucleare (INFN)UNSPECIFIED
MSIP (Korea)UNSPECIFIED
NRF (Korea)UNSPECIFIED
LAS (Lithuania)UNSPECIFIED
MOE (Malaysia)UNSPECIFIED
UM (Malaysia)UNSPECIFIED
CINVESTAV (Mexico)UNSPECIFIED
CONACyT (Mexico)UNSPECIFIED
SEP (Mexico)UNSPECIFIED
UASLP-FAI (Mexico)UNSPECIFIED
MBIE (New Zealand)UNSPECIFIED
PAEC (Pakistan)UNSPECIFIED
MSHE (Poland)UNSPECIFIED
NSC (Poland)UNSPECIFIED
Fundação para a Ciência e a Tecnologia (FCT)UNSPECIFIED
JINR (Dubna)UNSPECIFIED
MON (Russia)UNSPECIFIED
RosAtom (Russia)UNSPECIFIED
Russian Academy of SciencesUNSPECIFIED
Russian Foundation for Basic ResearchUNSPECIFIED
MESTD (Serbia)UNSPECIFIED
SEIDI (Spain)UNSPECIFIED
CPAN (Spain)UNSPECIFIED
Swiss Funding Agencies (Switzerland)UNSPECIFIED
Ministry of Science and Technology (Taipei)UNSPECIFIED
ThEPCenter (Thailand)UNSPECIFIED
IPST (Thailand)UNSPECIFIED
STAR (Thailand)UNSPECIFIED
NSTDA (Thailand)UNSPECIFIED
TUBITAK (Turkey)UNSPECIFIED
TAEK (Turkey)UNSPECIFIED
NASU (Ukraine)UNSPECIFIED
SFFR (Ukraine)UNSPECIFIED
Science and Technology Facilities Council (STFC)UNSPECIFIED
Department of Energy (DOE)UNSPECIFIED
NSFUNSPECIFIED
Marie-Curie programUNSPECIFIED
European Research Council (ERC)UNSPECIFIED
European Union EPLANETUNSPECIFIED
Leventis FoundationUNSPECIFIED
Alfred P. Sloan FoundationUNSPECIFIED
Alexander von Humboldt FoundationUNSPECIFIED
Belgian Federal Science Policy OfficeUNSPECIFIED
Fonds pour la Formation à la Recherche dans l’índustrie et dans l’Ágriculture (FRIA-Belgium)UNSPECIFIED
Agentschap voor Innovatie door Wetenschap en Technologie (IWT-Belgium)UNSPECIFIED
Ministry of Education, Youth and Sports (MEYS) of Czech RepublicUNSPECIFIED
Council of Science and Industrial Research (India)UNSPECIFIED
Foundation for Polish Science HOMING PLUS programmeUNSPECIFIED
European Union Regional Development FundUNSPECIFIED
Compagnia di San Paolo (Torino)UNSPECIFIED
Consorzio per la Fisica (Trieste)UNSPECIFIED
Ministero dell'Istruzione, dell'Università e della Ricerca (MIUR)20108T4XTM
Thalis programUNSPECIFIED
Aristeia programUNSPECIFIED
European Union European Social FundUNSPECIFIED
Greek NSRFUNSPECIFIED
Qatar National Research Fund National Priorities Research ProgramUNSPECIFIED
SCOAP3UNSPECIFIED
Institut national de physique nucléaire et de physique des particules (IN2P3)UNSPECIFIED
Subject Keywords:Exotics; Hadron-Hadron Scattering
Record Number:CaltechAUTHORS:20151103-133100393
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20151103-133100393
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:61800
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:04 Nov 2015 00:26
Last Modified:04 Nov 2015 00:26

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