Search for Quark Compositeness with the Dijet Centrality Ratio in pp Collisions at root s=7 TeV
2010
Аутори
Khachatryan, V.Adžić, Petar
Đorđević, Miloš
Krpić, D.
Milošević, Jovan
Milenović, Predrag
Reković, Vladimir
CMS Collaboration (ukupan broj autora: 2164)
Чланак у часопису
Метаподаци
Приказ свих података о документуАпстракт
A search for quark compositeness in the form of quark contact interactions, based on hadronic jet pairs (dijets) produced in proton-proton collisions at root s = 7 eV, is described. The data sample of the study corresponds to an integrated luminosity of 2.9 pb(-1) collected with the CMS detector at the LHC. The dijet centrality ratio, which quantifies the angular distribution of the dijets, is measured as a function of the invariant mass of the dijet system and is found to agree with the predictions of the standard model. A statistical analysis of the data provides a lower limit on the energy scale of quark contact interactions. The sensitivity of the analysis is such that the expected limit is 2.9 TeV; because the observed value of the centrality ratio at high invariant mass is below the expectation, the observed limit is 4.0 TeV at the 95% confidence level.
Извор:
Physical Review Letters, 2010, 105, 26Финансирање / пројекти:
- FMSR (Austria), FNRS and 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), Academy of Sciences and NICPB (Estonia), Academy of Finland, ME, and 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 (Korea), WCU (Korea), LAS (Lithuania), CINVESTAV (Mexico), CONACYT (Mexico), SEP (Mexico), UASLP-FAI (Mexico), PAEC (Pakistan), SCSR (Poland), FCT (Portugal), JINR (Armenia, Belarus, Georgia, Ukraine, Uzbekistan), MST (Russia), MAE (Russia), MSTD (Serbia), MICINN (Spain), CPAN (Spain), Swiss Funding Agencies (Switzerland), NSC (Taipei), TUBITAK (Turkey), TAEK (Turkey), STFC (United Kingdom), DOE (USA), NSF (USA)
DOI: 10.1103/PhysRevLett.105.262001
ISSN: 0031-9007; 1079-7114
PubMed: 21231646
WoS: 000286754700004
Scopus: 2-s2.0-78650553319
Колекције
Институција/група
VinčaTY - JOUR AU - Khachatryan, V. AU - Adžić, Petar AU - Đorđević, Miloš AU - Krpić, D. AU - Milošević, Jovan AU - Milenović, Predrag AU - Reković, Vladimir PY - 2010 UR - https://vinar.vin.bg.ac.rs/handle/123456789/4204 AB - A search for quark compositeness in the form of quark contact interactions, based on hadronic jet pairs (dijets) produced in proton-proton collisions at root s = 7 eV, is described. The data sample of the study corresponds to an integrated luminosity of 2.9 pb(-1) collected with the CMS detector at the LHC. The dijet centrality ratio, which quantifies the angular distribution of the dijets, is measured as a function of the invariant mass of the dijet system and is found to agree with the predictions of the standard model. A statistical analysis of the data provides a lower limit on the energy scale of quark contact interactions. The sensitivity of the analysis is such that the expected limit is 2.9 TeV; because the observed value of the centrality ratio at high invariant mass is below the expectation, the observed limit is 4.0 TeV at the 95% confidence level. T2 - Physical Review Letters T1 - Search for Quark Compositeness with the Dijet Centrality Ratio in pp Collisions at root s=7 TeV VL - 105 IS - 26 DO - 10.1103/PhysRevLett.105.262001 ER -
@article{ author = "Khachatryan, V. and Adžić, Petar and Đorđević, Miloš and Krpić, D. and Milošević, Jovan and Milenović, Predrag and Reković, Vladimir", year = "2010", abstract = "A search for quark compositeness in the form of quark contact interactions, based on hadronic jet pairs (dijets) produced in proton-proton collisions at root s = 7 eV, is described. The data sample of the study corresponds to an integrated luminosity of 2.9 pb(-1) collected with the CMS detector at the LHC. The dijet centrality ratio, which quantifies the angular distribution of the dijets, is measured as a function of the invariant mass of the dijet system and is found to agree with the predictions of the standard model. A statistical analysis of the data provides a lower limit on the energy scale of quark contact interactions. The sensitivity of the analysis is such that the expected limit is 2.9 TeV; because the observed value of the centrality ratio at high invariant mass is below the expectation, the observed limit is 4.0 TeV at the 95% confidence level.", journal = "Physical Review Letters", title = "Search for Quark Compositeness with the Dijet Centrality Ratio in pp Collisions at root s=7 TeV", volume = "105", number = "26", doi = "10.1103/PhysRevLett.105.262001" }
Khachatryan, V., Adžić, P., Đorđević, M., Krpić, D., Milošević, J., Milenović, P.,& Reković, V.. (2010). Search for Quark Compositeness with the Dijet Centrality Ratio in pp Collisions at root s=7 TeV. in Physical Review Letters, 105(26). https://doi.org/10.1103/PhysRevLett.105.262001
Khachatryan V, Adžić P, Đorđević M, Krpić D, Milošević J, Milenović P, Reković V. Search for Quark Compositeness with the Dijet Centrality Ratio in pp Collisions at root s=7 TeV. in Physical Review Letters. 2010;105(26). doi:10.1103/PhysRevLett.105.262001 .
Khachatryan, V., Adžić, Petar, Đorđević, Miloš, Krpić, D., Milošević, Jovan, Milenović, Predrag, Reković, Vladimir, "Search for Quark Compositeness with the Dijet Centrality Ratio in pp Collisions at root s=7 TeV" in Physical Review Letters, 105, no. 26 (2010), https://doi.org/10.1103/PhysRevLett.105.262001 . .