Search for excited quarks of light and heavy flavor in $\gamma +$ jet final states in proton–proton collisions at $\sqrt{s} =$ 13TeV - INSPIRE

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Search for excited quarks of light and heavy flavor in $\gamma +$ jet final states in proton–proton collisions at $\sqrt{s} =$ 13TeV

CMS

Collaboration

Nov 13, 2017

22 pages

Published in:

Phys.Lett.B 781 (2018) 390-411

Published: Jun 10, 2018

e-Print:

1711.04652 [hep-ex]

DOI:

10.1016/j.physletb.2018.04.007

PDG: Limits for Excited

{{\mathit q}}

{{\mathit q}^{*}}

) from Single Production

Report number:

CMS-EXO-17-002,
CERN-EP-2017-271

Experiments:

CERN-LHC-CMS

View in:

reference search19 citations

Citations per year

Abstract: (Elsevier)

A search is presented for excited quarks of light and heavy flavor that decay to γ+jet final states. The analysis is based on data corresponding to an integrated luminosity of 35.9 fb−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 γ+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 γ+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.

Note:

Replaced with the published version. Added the journal reference. All the figures and tables can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/EXO-17-002 (CMS Public Pages)

CMS
Physics
Excited quarks
p p: colliding beams
p p: scattering
jet: hadroproduction
photon: associated production
heavy quark
channel cross section: branching ratio: upper limit
mass dependence

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Figures(7)

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