Search for quark compositeness in dijet angular distributions from pp collisions at sqrt(s) = 7 TeV
- Yerevan Physics Inst. (Armenia)
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.
- Research Organization:
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- Contributing Organization:
- CMS Collaboration
- DOE Contract Number:
- AC02-07CH11359
- OSTI ID:
- 1155780
- Report Number(s):
- FERMILAB-PUB-12-687-CMS; CERN-PH-EP-2012-044; CMS-EXO-11-017; arXiv eprint number arXiv:1202.5535
- Journal Information:
- Journal of High Energy Physics (Online), Vol. 2012, Issue 5; ISSN 1029-8479
- Publisher:
- Springer Berlin
- Country of Publication:
- United States
- Language:
- English
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