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Search for excited quarks of light and heavy flavor in ??+?jet final states in proton?proton collisions at?s=13TeV

Abstract: A search is presented for excited quarks of light and heavy flavor that decay to ?+jet final states. The analysis is based on data corresponding to an integrated luminosity of 35.9fb?1 collected by the CMS experiment in proton?proton collisions at s=13TeV at the LHC. A signal would appear as a resonant contribution to the invariant mass spectrum of the ?+jet system, above the background expected from standard model processes. No resonant excess is found, and upper limits are set on the product of the excited quark cross section and its branching fraction as a function of its mass. These are the most stringent limits to date in the ?+jet final state, and exclude excited light quarks with masses below 5.5 TeV and excited b quarks with masses below 1.8 TeV, assuming standard model like coupling strengths.

Otras publicaciones de la misma revista o congreso con autores/as de la Universidad de Cantabria

 Fuente: Physics Letters B 781 (2018) 390-411

Editorial: Elsevier

 Fecha de publicación: 10/06/2018

Nº de páginas: 22

Tipo de publicación: Artículo de Revista

 DOI: 10.1016/j.physletb.2018.04.007

ISSN: 0370-2693,1873-2445

Url de la publicación: https://doi.org/10.1016/j.physletb.2018.04.007