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Abstract: A search is presented for quark contact interactions and extra spatial dimensions in proton–proton collisions at vs=8TeV using dijet angular distributions. The search is based on a data set corresponding to an integrated luminosity of 19.7fb-1 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.
Fuente: Physics Letters B, Vol. 746, Pp. 79–99, (2015)
Editorial: Elsevier
Fecha de publicación: 01/06/2015
Nº de páginas: 21
Tipo de publicación: Artículo de Revista
DOI: 10.1016/j.physletb.2015.04.042
ISSN: 0370-2693,1873-2445
Proyecto español: FPA2014-55295-C3-1-R ; FPA 2011-28694-C02-01
Url de la publicación: https://doi.org/10.1016/j.physletb.2015.04.042
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