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Search for quark contact interactions and extra spatial dimensions using dijet angular distributions in proton–proton collisions at √s = 8TeV

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 Rogan, C. and Spiropulu, M. and Timciuc, V. and Vlimant, J. R. and Wilkinson, R. and Xie, S. and Zhu, R. Y. and Dubinin, M. (2015) Search for quark contact interactions and extra spatial dimensions using dijet angular distributions in proton–proton collisions at √s = 8TeV. Physics Letters B, 746 . pp. 79-99. ISSN 0370-2693. http://resolver.caltech.edu/CaltechAUTHORS:20150626-074211079

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Abstract

A search is presented for quark contact interactions and extra spatial dimensions in proton–proton collisions at √s = 8TeV using dijet angular distributions. The search is based on a data set corresponding to an integrated luminosity of 19.7 fb^(−1) collected by the CMS detector at the CERN LHC. Dijet angular distributions are found to be in agreement with the perturbative QCD predictions that include electroweak corrections. Limits on the contact interaction scale from a variety of models at next-to-leading order in QCD corrections are obtained. A benchmark model in which only left-handed quarks participate is excluded up to a scale of 9.0 (11.7) TeV for destructive (constructive) interference at 95% confidence level. Lower limits between 5.9 and 8.4 TeV on the scale of virtual graviton exchange are extracted for the Arkani-Hamed–Dimopoulos–Dvali model of extra spatial dimensions.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1016/j.physletb.2015.04.042DOIArticle
http://www.sciencedirect.com/science/article/pii/S0370269315002853PublisherArticle
http://arxiv.org/abs/1411.2646arXivDiscussion Paper
Additional Information:© 2015 CERN for the benefit of the CMS Collaboration. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). Received 10 November 2014; Received in revised form 19 April 2015; Accepted 21 April 2015; Available online 24 April 2015. Funded by SCOAP3. We would like to thank S.Dittmaier and A.Huss for providing us with the electroweak correction factors. We congratulate our colleagues in the CERN accelerator departments for the excellent performance of the LHC and thank the technical and administra-tive staffs at CERN and at other CMS institutes for their contribu-tions to the success of the CMS effort. In addition, we gratefully acknowledge the computing centers and personnel of the World-wide LHC Computing Grid for delivering so effectively the computing infrastructure essential to our analyses. Finally, we acknowl-edge 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).
Group:CMS@Caltech
Funders:
Funding AgencyGrant Number
SCOAP3UNSPECIFIED
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
Subject Keywords:CMS; Physics; QCD; Electroweak corrections; Contact interactions; Extra dimensions
Record Number:CaltechAUTHORS:20150626-074211079
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20150626-074211079
Official Citation:CMS Collaboration, Search for quark contact interactions and extra spatial dimensions using dijet angular distributions in proton–proton collisions at, Physics Letters B, Volume 746, 30 June 2015, Pages 79-99, ISSN 0370-2693, http://dx.doi.org/10.1016/j.physletb.2015.04.042. (http://www.sciencedirect.com/science/article/pii/S0370269315002853)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:58629
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:26 Jun 2015 17:41
Last Modified:27 Jun 2015 05:02

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