“School of Particles”

Back to Papers Home
Back to Papers of School of Particles

Paper   IPM / Particles / 11767
School of Particles and Accelerator
Title:   Measurement of Dijet Angular Distributions and Search for Quark Compositeness in pp Collisions at 7 TeV
Author(s):
 1 Hessamaddin Arfaei 2 Hamed Bakhshiansohi 3 Seyed Mohsen Etesami 4 Ali Fahim 5 Majid Hashemi 6 Abideh Jafari 7 Mohsen Khakzad 8 A Mohammadi 9 Mojtaba Mohammadi Najafabadi 10 Saeid Paktinat Mehdiabadi 11 Batool Safarzadeh 12 Maryam Zeinali
Status:   Published
Journal: Phys. Rev. Lett.
No.:  201804
Vol.:  106
Year:  2011
Supported by:  IPM
Abstract:
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

Download TeX format
back to top
scroll left or right