A search for decays of the Higgs boson to invisible particles in events with a top-antitop quark pair or a vector boson in proton-proton collisions at $\sqrt{s} = 13\,\text {Te}\hspace{-.08em}\text {V} $

Tumasyan, Armen; Adam, Wolfgang; Andrejkovic, Janik Walter; Bergauer, Thomas; Chatterjee, Suman; Damanakis, Konstantinos; Dragicevic, Marko; Escalante Del Valle, Alberto; Hussain, Priya Sajid; Jeitler, Manfred

doi:10.1140/epjc/s10052-023-11952-7

A search for decays of the Higgs boson to invisible particles in events with a top-antitop quark pair or a vector boson in proton-proton collisions at $\sqrt{s} = 13\,\text {Te}\hspace{-.08em}\text {V}$

CMS

Collaboration

Mar 2, 2023

33 pages

Published in:

Eur.Phys.J.C 83 (2023) 10, 933,
Eur.Phys.J.C 83 (2023) 933

Published: Oct 16, 2023

e-Print:

2303.01214 [hep-ex]

DOI:

10.1140/epjc/s10052-023-11952-7

PDG:

{{\mathit H}}

\rightarrow

{\mathrm {invisible}}

Report number:

CMS-HIG-21-007,
CERN-EP-2023-004

Experiments:

CERN-LHC-CMS,
CERN-LHC-CMS

View in:

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Abstract: (Springer)

A search for decays to invisible particles of Higgs bosons produced in association with a top-antitop quark pair or a vector boson, which both decay to a fully hadronic final state, has been performed using proton-proton collision data collected at

{\sqrt{s}=13\,\text {Te}\hspace{-.08em}\text {V}}

by the CMS experiment at the LHC, corresponding to an integrated luminosity of 138

\,\text {fb}^{-1}

. The 95% confidence level upper limit set on the branching fraction of the 125

\,\text {Ge}\hspace{-.08em}\text {V}

Higgs boson to invisible particles,

{\mathcal {B}({\textrm{H}} \rightarrow \text {inv})}

, is 0.54 (0.39 expected), assuming standard model production cross sections. The results of this analysis are combined with previous

{\mathcal {B}({\textrm{H}} \rightarrow \text {inv})}

searches carried out at

{\sqrt{s}=7}

, 8, and 13

\,\text {Te}\hspace{-.08em}\text {V}

in complementary production modes. The combined upper limit at 95% confidence level on

{\mathcal {B}({\textrm{H}} \rightarrow \text {inv})}

is 0.15 (0.08 expected).

Note:

Replaced with the published version. Added the journal reference and the DOI. All the figures and tables can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/HIG-21-007 (CMS Public Pages)

p p: scattering
p p: colliding beams
top: pair production
Higgs particle: associated production
vector boson: associated production
final state: hadronic
final state: ((n)jet)
Higgs particle: invisible decay
Higgs particle: branching ratio: upper limit
CERN LHC Coll

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Figures(16)

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