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Searches for supersymmetry using the M _(T2) variable in hadronic events produced in pp collisions at 8 TeV

Khachatryan, V. 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 Wilkinson, R. and Xie, Si and Zhu, Ren-Yuan and Dubinin, M. (2015) Searches for supersymmetry using the M _(T2) variable in hadronic events produced in pp collisions at 8 TeV. Journal of High Energy Physics, 2015 (5). Art. No. 078. ISSN 1029-8479. http://resolver.caltech.edu/CaltechAUTHORS:20150608-143032218

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Abstract

Searches for supersymmetry (SUSY) are performed using a sample of hadronic events produced in 8 TeV pp collisions at the CERN LHC. The searches are based on the M _(T2) variable, which is a measure of the transverse momentum imbalance in an event. The data were collected with the CMS detector and correspond to an integrated luminosity of 19.5 fb^(−1). Two related searches are performed. The first is an inclusive search based on signal regions defined by the value of the M _(T2) variable, the hadronic energy in the event, the jet multiplicity, and the number of jets identified as originating from bottom quarks. The second is a search for a mass peak corresponding to a Higgs boson decaying to a bottom quark-antiquark pair, where the Higgs boson is produced as a decay product of a SUSY particle. For both searches, the principal backgrounds are evaluated with data control samples. No significant excess over the expected number of background events is observed, and exclusion limits on various SUSY models are derived.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1007/JHEP05(2015)078DOIArticle
http://link.springer.com/article/10.1007%2FJHEP05%282015%29078PublisherArticle
http://arxiv.org/abs/1502.04358arXivDiscussion Paper
Additional Information:© 2015 The Authors. 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 February 15, 2015; Accepted April 17, 2015; Published May 15, 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 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); COL-CIENCIAS (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 programme 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 `a 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 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 programmes 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
BMWFW and FWF (Austria)UNSPECIFIED
FNRS and FWO (Belgium) UNSPECIFIED
CNPq, CAPES, FAPERJ, and FAPESP (Brazil)UNSPECIFIED
MES (Bulgaria)UNSPECIFIED
CERNUNSPECIFIED
CAS, MoST, and NSFC (China)UNSPECIFIED
COLCIENCIAS (Colombia)UNSPECIFIED
MSES and CSF (Croatia)UNSPECIFIED
RPF (Cyprus) UNSPECIFIED
MoER, ERC IUT and ERDF (Estonia)UNSPECIFIED
Academy of Finland, MEC, and HIP (Finland)UNSPECIFIED
CEA and CNRS/IN2P3 (France)UNSPECIFIED
BMBF, DFG, and HGF (Germany) UNSPECIFIED
GSRT (Greece)UNSPECIFIED
OTKA and NIH (Hungary) UNSPECIFIED
DAE and DST (India) UNSPECIFIED
IPM (Iran)UNSPECIFIED
Science Foundation, IrelandUNSPECIFIED
Istituto Nazionale di Fisica Nucleare (INFN)UNSPECIFIED
MSIP and NRF (Korea)UNSPECIFIED
LAS (Lithuania)UNSPECIFIED
MOE and UM (Malaysia)UNSPECIFIED
CINVESTAV, CONACYT, SEP, and UASLP-FAI (Mexico)UNSPECIFIED
MBIE (New Zealand)UNSPECIFIED
PAEC (Pakistan)UNSPECIFIED
MSHE and NSC (Poland)UNSPECIFIED
Fundação para a Ciência e a Tecnologia (FCT)UNSPECIFIED
JINR (Dubna)UNSPECIFIED
MON, RosAtom, RAS and RFBR (Russia)UNSPECIFIED
MESTD (Serbia)UNSPECIFIED
SEIDI and CPAN (Spain)UNSPECIFIED
Swiss Funding Agencies (Switzerland)UNSPECIFIED
MST (Tapei)UNSPECIFIED
ThEPCenter, IPST, STAR and NSTDA (Thailand)UNSPECIFIED
TUBITAK and TAEK (Turkey) UNSPECIFIED
NASU and SFFR (Ukraine)UNSPECIFIED
Science and Technology Facilities Council (STFC)UNSPECIFIED
Department of Energy (DOE)UNSPECIFIED
NSFUNSPECIFIED
Marie-Curie programme and the European Research Council and EPLANET (European Union)UNSPECIFIED
Leventis Foundation UNSPECIFIED
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, IndiaUNSPECIFIED
HOMING PLUS program of the Foundation for Polish Science, cofinanced by the European 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 and Aristeia programmes cofinanced by EU-ESFUNSPECIFIED
Greek NSRFUNSPECIFIED
National Priorities Research Program by Qatar National Research FundUNSPECIFIED
Subject Keywords:Supersymmetry; Hadron-Hadron Scattering
Record Number:CaltechAUTHORS:20150608-143032218
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20150608-143032218
Official Citation:Khachatryan, V., Sirunyan, A. M., Tumasyan, A., Adam, W., Bergauer, T., Dragicevic, M., . . . Woods, N. (2015). Searches for supersymmetry using the M T2 variable in hadronic events produced in pp collisions at 8 TeV. Journal of High Energy Physics, 2015(5), 1-52. doi: 10.1007/jhep05(2015)078
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:58091
Collection:CaltechAUTHORS
Deposited By: Joanne McCole
Deposited On:09 Jun 2015 13:39
Last Modified:09 Jun 2015 13:39

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