Search for charge-asymmetric production of W bosons in t(t)over-bar + jet events from pp collisions at root s=7 TeV
2012
Autori
Chatrchyan, S.Adžić, Petar
Đorđević, Miloš
Ekmedžić, Marko
Krpić, D.
Milošević, Jovan
Milenović, Predrag
Reković, Vladimir
CMS Collaboration (ukupan broj autora: 2192)
Članak u časopisu
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
A search is presented for charge-asymmetric production of a W boson that has been proposed to accommodate the forward-backward asymmetry observed in the production of top-antitop quark pairs at the Tevatron. The new heavy W boson would be produced in association with a top quark and would decay into top and down quarks. The data correspond to an integrated luminosity of 5.0 fb(-1) in pp collisions at a center-of-mass energy of 7 TeV, recorded by the CMS detector at the LHC. No significant excess above the standard model expectations is observed, and, from a combination of the electron-plus-jets and muon-plus-jets channels, a 95% confidence level lower limit of 840 GeV/c(2) is set on the W boson mass for a W boson model with values for coupling constants to top and down quarks g(L) = 0 and g(R) = 2. In addition, a kinematic reconstruction of the W resonance mass using the inherent charge asymmetry of this model finds no indication of the presence of W events in the data. (C) 2012 CERN. ...Published by Elsevier B.V. All rights reserved.
Ključne reči:
CMS / W / Top pairIzvor:
Physics Letters B, 2012, 717, 4-5, 351-370Finansiranje / projekti:
- FMSR (Austria), FNRS (Belgium), FWO (Belgium), CNPq (Brazil), CAPES (Brazil), FAPERJ (Brazil), FAPESP (Brazil), MES (Bulgaria), CERN, CAS (China), MoST (China), NSFC (China), COLCIENCIAS (Colombia), MSES (Croatia), RPF (Cyprus), MoER (Estonia), ERDF (Estonia), Academy of Finland, MEC (Finland), HIP (Finland), CEA (France), CNRS/IN2P3 (France), BMBF, Germany, DFG (Germany), HGF (Germany), GSRT (Greece), OTKA (Hungary), NKTH (Hungary), DAE (India), DST (India), IPM (Iran), SFI (Ireland), INFN (Italy), NRF (Republic of Korea), WCU (Republic of Korea), LAS (Lithuania), CINVES-TAV (Mexico), CONACYT (Mexico), SEP (Mexico), UASLP-FAI (Mexico), MSI (New Zealand), PAEC (Pakistan), MSHE (Poland), NSC (Poland), FCT (Portugal), JINR (Armenia), JINR (Belarus), JINR (Georgia), JINR (Ukraine), JINR (Uzbekistan), MON (Russia), RosAtom (Russia), RAS (Russia), RFBR (Russia), MSTD (Serbia), SEIDI (Spain), CPAN (Spain), Swiss Funding Agencies (Switzerland), NSC (Taipei), TUBITAK (Turkey), TAEK (Turkey), STFC (United Kingdom), DOE (USA), NSF (USA), Marie-Curie programme (European Union), European Research Council (European Union), Leventis Foundation, A.P. Sloan Foundation, Alexander von Humboldt Foundation, Belgian Federal Science Policy Office, Fonds pour la Formation a la Recherche dans lIndustrie et dans lAgriculture (FRIA-Belgium), Agentschap voor Innovatie door Wetenschap en Technologie (IWT-Belgium), Council of Science and Industrial Research, India, Compagnia di San Paolo (Torino), HOMING PLUS programme of Foundation for Polish Science, European Union, Regional Development Fund, [SF0690030s09]
DOI: 10.1016/j.physletb.2012.09.048
ISSN: 0370-2693; 1873-2445
WoS: 000310863300009
Scopus: 2-s2.0-84867677501
Kolekcije
Institucija/grupa
VinčaTY - JOUR AU - Chatrchyan, S. AU - Adžić, Petar AU - Đorđević, Miloš AU - Ekmedžić, Marko AU - Krpić, D. AU - Milošević, Jovan AU - Milenović, Predrag AU - Reković, Vladimir PY - 2012 UR - https://vinar.vin.bg.ac.rs/handle/123456789/5152 AB - A search is presented for charge-asymmetric production of a W boson that has been proposed to accommodate the forward-backward asymmetry observed in the production of top-antitop quark pairs at the Tevatron. The new heavy W boson would be produced in association with a top quark and would decay into top and down quarks. The data correspond to an integrated luminosity of 5.0 fb(-1) in pp collisions at a center-of-mass energy of 7 TeV, recorded by the CMS detector at the LHC. No significant excess above the standard model expectations is observed, and, from a combination of the electron-plus-jets and muon-plus-jets channels, a 95% confidence level lower limit of 840 GeV/c(2) is set on the W boson mass for a W boson model with values for coupling constants to top and down quarks g(L) = 0 and g(R) = 2. In addition, a kinematic reconstruction of the W resonance mass using the inherent charge asymmetry of this model finds no indication of the presence of W events in the data. (C) 2012 CERN. Published by Elsevier B.V. All rights reserved. T2 - Physics Letters B T1 - Search for charge-asymmetric production of W bosons in t(t)over-bar + jet events from pp collisions at root s=7 TeV VL - 717 IS - 4-5 SP - 351 EP - 370 DO - 10.1016/j.physletb.2012.09.048 ER -
@article{ author = "Chatrchyan, S. and Adžić, Petar and Đorđević, Miloš and Ekmedžić, Marko and Krpić, D. and Milošević, Jovan and Milenović, Predrag and Reković, Vladimir", year = "2012", abstract = "A search is presented for charge-asymmetric production of a W boson that has been proposed to accommodate the forward-backward asymmetry observed in the production of top-antitop quark pairs at the Tevatron. The new heavy W boson would be produced in association with a top quark and would decay into top and down quarks. The data correspond to an integrated luminosity of 5.0 fb(-1) in pp collisions at a center-of-mass energy of 7 TeV, recorded by the CMS detector at the LHC. No significant excess above the standard model expectations is observed, and, from a combination of the electron-plus-jets and muon-plus-jets channels, a 95% confidence level lower limit of 840 GeV/c(2) is set on the W boson mass for a W boson model with values for coupling constants to top and down quarks g(L) = 0 and g(R) = 2. In addition, a kinematic reconstruction of the W resonance mass using the inherent charge asymmetry of this model finds no indication of the presence of W events in the data. (C) 2012 CERN. Published by Elsevier B.V. All rights reserved.", journal = "Physics Letters B", title = "Search for charge-asymmetric production of W bosons in t(t)over-bar + jet events from pp collisions at root s=7 TeV", volume = "717", number = "4-5", pages = "351-370", doi = "10.1016/j.physletb.2012.09.048" }
Chatrchyan, S., Adžić, P., Đorđević, M., Ekmedžić, M., Krpić, D., Milošević, J., Milenović, P.,& Reković, V.. (2012). Search for charge-asymmetric production of W bosons in t(t)over-bar + jet events from pp collisions at root s=7 TeV. in Physics Letters B, 717(4-5), 351-370. https://doi.org/10.1016/j.physletb.2012.09.048
Chatrchyan S, Adžić P, Đorđević M, Ekmedžić M, Krpić D, Milošević J, Milenović P, Reković V. Search for charge-asymmetric production of W bosons in t(t)over-bar + jet events from pp collisions at root s=7 TeV. in Physics Letters B. 2012;717(4-5):351-370. doi:10.1016/j.physletb.2012.09.048 .
Chatrchyan, S., Adžić, Petar, Đorđević, Miloš, Ekmedžić, Marko, Krpić, D., Milošević, Jovan, Milenović, Predrag, Reković, Vladimir, "Search for charge-asymmetric production of W bosons in t(t)over-bar + jet events from pp collisions at root s=7 TeV" in Physics Letters B, 717, no. 4-5 (2012):351-370, https://doi.org/10.1016/j.physletb.2012.09.048 . .