Search for quark contact interactions and extra spatial dimensions using dijet angular distributions in proton-proton collisions at sqrt(s) = 8 TeV
arXiv:1411.2646 · doi:10.1016/j.physletb.2015.04.042
Abstract
A search is presented for quark contact interactions and extra spatial dimensions in proton-proton collisions at sqrt(s) = 8 TeV using dijet angular distributions. The search is based on a data set corresponding to an integrated luminosity of 19.7 inverse femtobarns collected by the CMS detector at the CERN LHC. Dijet angular distributions are found to be in agreement with the perturbative QCD predictions that include electroweak corrections. Limits on the contact interaction scale from a variety of models at next-to-leading order in QCD corrections are obtained. A benchmark model in which only left-handed quarks participate is excluded up to a scale of 9.0 (11.7) TeV for destructive (constructive) interference at 95% confidence level. Lower limits between 5.9 and 8.4 TeV on the scale of virtual graviton exchange are extracted for the Arkani-Hamed--Dimopoulos--Dvali model of extra spatial dimensions.
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References in corpus (9)
- New parton distributions for collider physics
- Herwig++ Physics and Manual
- Interleaved Parton Showers and Tuning Prospects
- Search for physics beyond the standard model in dilepton mass spectra in proton-proton collisions at sqrt(s) = 8 TeV
- Measurement of the inelastic proton-proton cross section at sqrt(s) = 7 TeV
- Search for contact interactions and large extra dimensions in the dilepton channel using proton-proton collisions at = 8 TeV with the ATLAS detector
- LHC bounds on large extra dimensions
- Next-to-leading QCD effect to the quark compositeness search at the LHC
- Search for contact interactions using the inclusive jet pT spectrum in pp collisions at sqrt(s) = 7 TeV