Search for the associated production of a Higgs boson with a single top quark in proton-proton collisions at $ \sqrt{s}=8 $ TeV - INSPIRE

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Search for the associated production of a Higgs boson with a single top quark in proton-proton collisions at $\sqrt{s}=8$ TeV

CMS

Collaboration

Sep 27, 2015

42 pages

Published in:

JHEP 06 (2016) 177

Published: Jun 30, 2016

e-Print:

1509.08159 [hep-ex]

DOI:

10.1007/JHEP06(2016)177

PDG:

{{\mathit t}}{{\mathit H}}

Report number:

CMS-HIG-14-027,
CERN-PH-EP-2015-255

Experiments:

CERN-LHC-CMS

View in:

reference search63 citations

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Abstract: (Springer)

This paper presents the search for the production of a Higgs boson in association with a single top quark (tHq), using data collected in proton-proton collisions at a center-of-mass energy of 8 TeV corresponding to an integrated luminosity of 19.7 fb

^{−1}

. The search exploits a variety of Higgs boson decay modes resulting in final states with photons, bottom quarks, and multiple charged leptons, including tau leptons, and employs a variety of multivariate techniques to maximize sensitivity to the signal. The analysis is optimized for the opposite sign of the Yukawa coupling to that in the standard model, corresponding to a large enhancement of the signal cross section. In the absence of an excess of candidate signal events over the background predictions, 95% confidence level observed (expected) upper limits on anomalous tHq production are set, ranging between 600 (450) fb and 1000 (700) fb depending on the assumed diphoton branching fraction of the Higgs boson. This is the first time that results on anomalous tHq production have been reported.

Note:

Replaced with published version. Added the journal reference and DOI. All figures and tables, including additional figures, can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/HIG-14-027/index.html

Hadron-Hadron scattering (experiments)
Higgs physics
Top physics
p p: scattering
p p: colliding beams
Higgs particle: hadroproduction
top: single production
Higgs particle: associated production
Higgs particle: branching ratio
Higgs particle: decay modes

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