Search for R-parity violating decays of a top squark in proton-proton collisions at root s=8TeV
2016
Аутори
Khachatryan, V.Adžić, Petar
Ćirković, Predrag
Milošević, Jovan
Reković, Vladimir
Đorđević, Miloš
Milenović, Predrag
CMS Collaboration (ukupan broj autora: 2285)
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
The results of a search for a supersymmetric partner of the top quark (top squark), pair-produced in proton-proton collisions at root s = 8 TeV, are presented. The search, which focuses on R-parity violating, chargino-mediated decays of the top squark, is performed in final states with low missing transverse momentum, two oppositely charged electrons or muons, and at least five jets. The analysis uses a data sample corresponding to an integrated luminosity of 19.7 fb(-1)collected with the CMS detector at the LHC in 2012. The data are found to be in agreement with the standard model expectation, and upper limits are placed on the top squark pair production cross section at 95% confidence level. Assuming a 100% branching fraction for the top squark decay chain, (t) over tilde - GT t (chi) over tilde (+/-)(1), (chi) over tilde (+/-)(1) - GT l(+/-) + jj, top squark masses less than 890(1000) GeV for the electron (muon) channel are excluded for the first time in models with a single nonzero... R-parity violating coupling. lambda(ijk) (i, j, k LT = 2), where i, j, k correspond to the three generations. (C) 2016 The Author(s). Published by Elsevier B.V.
Кључне речи:
CMS / Physics / Supersymmetry / Leptons / Low missing transverse energyИзвор:
Physics Letters B, 2016, 760, 178-201Финансирање / пројекти:
- BMWFW (Austria), FWF (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), CSF (Croatia), RPF (Cyprus), MoER (Estonia), ERC IUT (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), NIH (Hungary), DAE (India), DST (India), IPM (Iran), SFI (Ireland), INFN (Italy), MSIP (Republic of Korea), NRF (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), Marie-Curie program, European Research Council, EPLANET (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), Ministry of Education, Youth and Sports (MEYS) of the Czech Republic, Council of Science and Industrial Research, India, HOMING PLUS program of the Foundation for Polish Science, European Union, Regional Development Fund, OPUS program of the National Science Center (Poland), Compagnia di San Paolo (Torino), MIUR (Italy) [20108T4XTM], Thalis and Aristeia programs - EU-ESF and the Greek NSRF, National Priorities Research Program by Qatar National Research Fund, Rachadapisek Sompot Fund for Postdoctoral Fellowship, Chulalongkorn University (Thailand), Chulalongkorn Academic into Its 2nd Century Project Advancement Project (Thailand), Welch Foundation [C-1845]
DOI: 10.1016/j.physletb.2016.06.039
ISSN: 0370-2693; 1873-2445
WoS: 000382890500029
Scopus: 2-s2.0-85040805935
Колекције
Институција/група
VinčaTY - JOUR AU - Khachatryan, V. AU - Adžić, Petar AU - Ćirković, Predrag AU - Milošević, Jovan AU - Reković, Vladimir AU - Đorđević, Miloš AU - Milenović, Predrag PY - 2016 UR - https://vinar.vin.bg.ac.rs/handle/123456789/1236 AB - The results of a search for a supersymmetric partner of the top quark (top squark), pair-produced in proton-proton collisions at root s = 8 TeV, are presented. The search, which focuses on R-parity violating, chargino-mediated decays of the top squark, is performed in final states with low missing transverse momentum, two oppositely charged electrons or muons, and at least five jets. The analysis uses a data sample corresponding to an integrated luminosity of 19.7 fb(-1)collected with the CMS detector at the LHC in 2012. The data are found to be in agreement with the standard model expectation, and upper limits are placed on the top squark pair production cross section at 95% confidence level. Assuming a 100% branching fraction for the top squark decay chain, (t) over tilde - GT t (chi) over tilde (+/-)(1), (chi) over tilde (+/-)(1) - GT l(+/-) + jj, top squark masses less than 890(1000) GeV for the electron (muon) channel are excluded for the first time in models with a single nonzero R-parity violating coupling. lambda(ijk) (i, j, k LT = 2), where i, j, k correspond to the three generations. (C) 2016 The Author(s). Published by Elsevier B.V. T2 - Physics Letters B T1 - Search for R-parity violating decays of a top squark in proton-proton collisions at root s=8TeV VL - 760 SP - 178 EP - 201 DO - 10.1016/j.physletb.2016.06.039 ER -
@article{ author = "Khachatryan, V. and Adžić, Petar and Ćirković, Predrag and Milošević, Jovan and Reković, Vladimir and Đorđević, Miloš and Milenović, Predrag", year = "2016", abstract = "The results of a search for a supersymmetric partner of the top quark (top squark), pair-produced in proton-proton collisions at root s = 8 TeV, are presented. The search, which focuses on R-parity violating, chargino-mediated decays of the top squark, is performed in final states with low missing transverse momentum, two oppositely charged electrons or muons, and at least five jets. The analysis uses a data sample corresponding to an integrated luminosity of 19.7 fb(-1)collected with the CMS detector at the LHC in 2012. The data are found to be in agreement with the standard model expectation, and upper limits are placed on the top squark pair production cross section at 95% confidence level. Assuming a 100% branching fraction for the top squark decay chain, (t) over tilde - GT t (chi) over tilde (+/-)(1), (chi) over tilde (+/-)(1) - GT l(+/-) + jj, top squark masses less than 890(1000) GeV for the electron (muon) channel are excluded for the first time in models with a single nonzero R-parity violating coupling. lambda(ijk) (i, j, k LT = 2), where i, j, k correspond to the three generations. (C) 2016 The Author(s). Published by Elsevier B.V.", journal = "Physics Letters B", title = "Search for R-parity violating decays of a top squark in proton-proton collisions at root s=8TeV", volume = "760", pages = "178-201", doi = "10.1016/j.physletb.2016.06.039" }
Khachatryan, V., Adžić, P., Ćirković, P., Milošević, J., Reković, V., Đorđević, M.,& Milenović, P.. (2016). Search for R-parity violating decays of a top squark in proton-proton collisions at root s=8TeV. in Physics Letters B, 760, 178-201. https://doi.org/10.1016/j.physletb.2016.06.039
Khachatryan V, Adžić P, Ćirković P, Milošević J, Reković V, Đorđević M, Milenović P. Search for R-parity violating decays of a top squark in proton-proton collisions at root s=8TeV. in Physics Letters B. 2016;760:178-201. doi:10.1016/j.physletb.2016.06.039 .
Khachatryan, V., Adžić, Petar, Ćirković, Predrag, Milošević, Jovan, Reković, Vladimir, Đorđević, Miloš, Milenović, Predrag, "Search for R-parity violating decays of a top squark in proton-proton collisions at root s=8TeV" in Physics Letters B, 760 (2016):178-201, https://doi.org/10.1016/j.physletb.2016.06.039 . .