Measurement of Dijet Angular Distributions and Search for Quark Compositeness in pp Collisions at sqrt(s) = 7 TeV (CROSBI ID 176289)
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Podaci o odgovornosti
Chatrchyan, S. ; ... ; Godinović, Nikola ; Lelas, Damir ; Lelas, Karlo ; Pleština, Roko ; Polić, Dunja ; Puljak, Ivica ; Antunović, Željko ; Dželalija, Mile ; Brigljević, Vuko ; Đurić, Senka ; Kadija, Krešo ; Morović, Srećko ; ... ; Weinberg, M.
engleski
Measurement of Dijet Angular Distributions and Search for Quark Compositeness in pp Collisions at sqrt(s) = 7 TeV
Dijet angular distributions are measured over a wide range of dijet invariant masses in pp collisions at sqrt(s) = 7 TeV, at the CERN LHC. The event sample, recorded with the CMS detector, corresponds to an integrated luminosity of 36 inverse picobarns. The data are found to be in good agreement with the predictions of perturbative QCD, and yield no evidence of quark compositeness. With a modified frequentist approach, a lower limit on the contact interaction scale for left-handed quarks of Lambda = 5.6 TeV is obtained at the 95% confidence level.
LHC; CMS; physics; jets; beyond standard model
The CMS Collaboration
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Podaci o izdanju
106 (20)
2011.
201804-1-201804-14
objavljeno
0031-9007
10.1103/PhysRevLett.106.201804