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Search for quark compositeness in dijet angular distributions from $pp$ collisions at $s=7$ TeV

Search for quark compositeness in dijet angular distributions from $pp$ collisions at $s=7$ TeV
Search for quark compositeness in dijet angular distributions from $pp$ collisions at $s=7$ TeV
A search for quark compositeness using dijet angular distributions from pp collisions at s √ =7
s=7 TeV is presented. The search has been carried out using a data sample corresponding to an integrated luminosity of 2.2 fb−1, 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.
1029-8479
Chatrchyan, Serguei
23ce6af5-bdd2-435c-92c8-9b1b71a261ee
Belyaev, Alexander
6bdb9638-5ff9-4b65-a8f2-34bae3ac34b3
The CMS Collaboration
Chatrchyan, Serguei
23ce6af5-bdd2-435c-92c8-9b1b71a261ee
Belyaev, Alexander
6bdb9638-5ff9-4b65-a8f2-34bae3ac34b3

Chatrchyan, Serguei and Belyaev, Alexander , The CMS Collaboration (2012) Search for quark compositeness in dijet angular distributions from $pp$ collisions at $s=7$ TeV. Journal of High Energy Physics, 05. (doi:10.1007/JHEP05(2012)055).

Record type: Article

Abstract

A search for quark compositeness using dijet angular distributions from pp collisions at s √ =7
s=7 TeV is presented. The search has been carried out using a data sample corresponding to an integrated luminosity of 2.2 fb−1, 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.

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Published date: 2012
Organisations: Physics & Astronomy

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Local EPrints ID: 411290
URI: https://eprints.soton.ac.uk/id/eprint/411290
ISSN: 1029-8479
PURE UUID: 64a1a3bb-6d18-4af0-a1dd-0d6328b9a027
ORCID for Alexander Belyaev: ORCID iD orcid.org/0000-0002-1733-4408

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Date deposited: 16 Jun 2017 16:32
Last modified: 24 Sep 2019 00:44

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Author: Serguei Chatrchyan

University divisions

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