Search For Quark Compositeness In Dijet Angular Distributions From Pp Collisions At Sqrt S
Download Search For Quark Compositeness In Dijet Angular Distributions From Pp Collisions At Sqrt S PDF/ePub or read online books in Mobi eBooks. Click Download or Read Online button to get Search For Quark Compositeness In Dijet Angular Distributions From Pp Collisions At Sqrt S book now. This website allows unlimited access to, at the time of writing, more than 1.5 million titles, including hundreds of thousands of titles in various foreign languages.
Search for Quark Compositeness in Dijet Angular Distributions from Pp Collisions at Sqrt(s)
A search for quark compositeness using dijet angular distributions from pp collisions at sqrt(s) = 7 TeV is presented. The search has been carried out using a data sample corresponding to an integrated luminosity of 2.2 inverse femtobarns, recorded by the CMS experiment at the LHC. Normalized dijet angular distributions have been measured for dijet invariant masses from 0.4 TeV to above 3 TeV and compared with a variety of contact interaction models, including those which take into account the effects of next-to-leading-order QCD corrections. The data are found to be in agreement with the predictions of perturbative QCD, and lower limits are obtained on the contact interaction scale, ranging from 7.5 up to 14.5 TeV at 95% confidence level.
Measurement of Dijet Angular Distributions and Search for Quark Compositeness in Pp Collisions at $sqrt{s}
Dijet angular distributions are measured over a wide range of dijet invariant masses in pp collisions at 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.
Inclusive b Jet Production in Proton-Proton Collisions
Author: Patrick L.S. Connor
language: en
Publisher: Springer Nature
Release Date: 2019-11-29
^ 74 GeV and |y| 2.4; the b jets must contain a B hadron. The measurement has significant statistics up to p T ∼ O(TeV). Advanced methods of unfolding are performed to extract the signal. It is found that fixed-order calculations with underlying event describe the measurement well.