Search for excited quarks in the gamma plus jet final state in proton-proton collisions at root s=8 TeV
2014
Authors
Khachatryan, V.Adžić, Petar
Đorđević, Miloš
Ekmedžić, Marko
Milošević, Jovan
Milenović, Predrag
Reković, Vladimir
CMS Collaboration (ukupan broj autora: 2065)
Article (Published version)
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Show full item recordAbstract
A search for excited quarks decaying into the gamma + jet final state is presented. The analysis is based on data corresponding to an integrated luminosity of 19.7 fb(-1) collected by the CMS experiment in proton-proton collisions at root s = 8 TeV at the LHC. Events with photons and jets with high transverse momenta are selected and the gamma + jet invariant mass distribution is studied to search for a resonance peak. The 95% confidence level upper limits on the product of cross section and branching fraction are evaluated as a function of the excited quark mass. Limits on excited quarks are presented as a function of their mass and coupling strength; masses below 3.5 TeV are excluded at 95% confidence level for unit couplings to their standard model partners. (C) 2014 The Authors. Published by Elsevier B.V.
Keywords:
CMS / Physics / Photon / JetSource:
Physics Letters B, 2014, 738, 274-293Funding / projects:
- BMWFW (Austria), FWF (Austria), FNRS (Belgium), FWO (Belgium), CNPq (Brazil), CAPES (Brazil), FAPERJ (Brazil), FAPESP (Brazil), MES (Bulgaria), CERN (China), CAS (China), MoST (China), NSFC (China), COLCIENCIAS (Colombia), MSES (Croatia), CSF (Croatia), RPF (Cyprus), ERDF (Estonia), MoER (Estonia), ERC IUT (Estonia), Academy of Finland, MEC (Finland), HIP (Finland), CEA(France), CNRS/IN2P3 (France), BMBF, Germany, DFG (Germany), HGF (Germany), GSRT (Greece), OTKA (Hungary), NIH (Hungary), DAE (India), DST (India), IPM (Iran), SFI (Ireland), INFN (Italy), NRF (Republic of Korea), WCU (Republic of Korea), LAS (Lithuania), MOE (Malaysia), UM (Malaysia), CINVESTAV (Mexico), CONACYT (Mexico), SEP (Mexico), UASLP-FAI (Mexico), MBIE (New Zealand), PAEC (Pakistan), MSHE (Poland), NSC (Poland), FCT (Portugal), JINR (Dubna), MON (Russia), RosAtom (Russia), RAS (Russia), RFBR (Russia), MESTD (Serbia), SEIDI (Spain), CPAN (Spain), Swiss Funding Agencies (Switzerland), MST (Taipei), ThEPCenter (Thailand), IPST (Thailand), STAR (Thailand), NSTDA (Thailand), TUBITAK (Turkey), TAEK (Turkey), NASU (Ukraine), SFFR (Ukraine), STFC (United Kingdom), DOE (USA), NSF (USA)
DOI: 10.1016/j.physletb.2014.09.048
ISSN: 0370-2693; 1873-2445
WoS: 000344624900043
Scopus: 2-s2.0-85041771241
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VinčaTY - JOUR AU - Khachatryan, V. AU - Adžić, Petar AU - Đorđević, Miloš AU - Ekmedžić, Marko AU - Milošević, Jovan AU - Milenović, Predrag AU - Reković, Vladimir PY - 2014 UR - https://vinar.vin.bg.ac.rs/handle/123456789/200 AB - A search for excited quarks decaying into the gamma + jet final state is presented. The analysis is based on data corresponding to an integrated luminosity of 19.7 fb(-1) collected by the CMS experiment in proton-proton collisions at root s = 8 TeV at the LHC. Events with photons and jets with high transverse momenta are selected and the gamma + jet invariant mass distribution is studied to search for a resonance peak. The 95% confidence level upper limits on the product of cross section and branching fraction are evaluated as a function of the excited quark mass. Limits on excited quarks are presented as a function of their mass and coupling strength; masses below 3.5 TeV are excluded at 95% confidence level for unit couplings to their standard model partners. (C) 2014 The Authors. Published by Elsevier B.V. T2 - Physics Letters B T1 - Search for excited quarks in the gamma plus jet final state in proton-proton collisions at root s=8 TeV VL - 738 SP - 274 EP - 293 DO - 10.1016/j.physletb.2014.09.048 ER -
@article{ author = "Khachatryan, V. and Adžić, Petar and Đorđević, Miloš and Ekmedžić, Marko and Milošević, Jovan and Milenović, Predrag and Reković, Vladimir", year = "2014", abstract = "A search for excited quarks decaying into the gamma + jet final state is presented. The analysis is based on data corresponding to an integrated luminosity of 19.7 fb(-1) collected by the CMS experiment in proton-proton collisions at root s = 8 TeV at the LHC. Events with photons and jets with high transverse momenta are selected and the gamma + jet invariant mass distribution is studied to search for a resonance peak. The 95% confidence level upper limits on the product of cross section and branching fraction are evaluated as a function of the excited quark mass. Limits on excited quarks are presented as a function of their mass and coupling strength; masses below 3.5 TeV are excluded at 95% confidence level for unit couplings to their standard model partners. (C) 2014 The Authors. Published by Elsevier B.V.", journal = "Physics Letters B", title = "Search for excited quarks in the gamma plus jet final state in proton-proton collisions at root s=8 TeV", volume = "738", pages = "274-293", doi = "10.1016/j.physletb.2014.09.048" }
Khachatryan, V., Adžić, P., Đorđević, M., Ekmedžić, M., Milošević, J., Milenović, P.,& Reković, V.. (2014). Search for excited quarks in the gamma plus jet final state in proton-proton collisions at root s=8 TeV. in Physics Letters B, 738, 274-293. https://doi.org/10.1016/j.physletb.2014.09.048
Khachatryan V, Adžić P, Đorđević M, Ekmedžić M, Milošević J, Milenović P, Reković V. Search for excited quarks in the gamma plus jet final state in proton-proton collisions at root s=8 TeV. in Physics Letters B. 2014;738:274-293. doi:10.1016/j.physletb.2014.09.048 .
Khachatryan, V., Adžić, Petar, Đorđević, Miloš, Ekmedžić, Marko, Milošević, Jovan, Milenović, Predrag, Reković, Vladimir, "Search for excited quarks in the gamma plus jet final state in proton-proton collisions at root s=8 TeV" in Physics Letters B, 738 (2014):274-293, https://doi.org/10.1016/j.physletb.2014.09.048 . .