Search for Higgs Boson Decay to a Charm Quark-Antiquark Pair in Proton-Proton Collisions at <math display="inline"><msqrt><mi>s</mi></msqrt><mo>=</mo><mn>13</mn><mtext> </mtext><mtext> </mtext><mi>TeV</mi></math>

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:10.1103/PhysRevLett.131.061801

Search for Higgs Boson Decay to a Charm Quark-Antiquark Pair in Proton-Proton Collisions at $\sqrt{s} = 13 TeV$

CMS

Collaboration

May 11, 2022

21 pages

Published in:

Phys.Rev.Lett. 131 (2023) 6, 061801

Published: Aug 7, 2023

e-Print:

2205.05550 [hep-ex]

DOI:

10.1103/PhysRevLett.131.061801 (publication)

PDG: charm Yukawa coupling (

{{\mathit \kappa}_{{{c}}}}

)

Report number:

CMS-HIG-21-008,
CERN-EP-2022-081

Experiments:

CERN-LHC-CMS

View in:

datasets

reference search115 citations

Citations per year

Abstract: (APS)

A search for the standard model Higgs boson decaying to a charm quark-antiquark pair,

H \to c \bar{c}

, produced in association with a leptonically decaying

V

(

W

or

Z

) boson is presented. The search is performed with proton-proton collisions at

\sqrt{s} = 13 TeV

collected by the CMS experiment, corresponding to an integrated luminosity of

138 {fb}^{- 1}

. Novel charm jet identification and analysis methods using machine learning techniques are employed. The analysis is validated by searching for

Z \to c \bar{c}

in

V Z

events, leading to its first observation at a hadron collider with a significance of 5.7 standard deviations. The observed (expected) upper limit on

σ (V H) B (H \to c \bar{c})

is 0.94 (

{0.50}_{- 0.15}^{+ 0.22}

)pb at 95% confidence level (C.L.), corresponding to 14 (

{7.6}_{- 2.3}^{+ 3.4}

) times the standard model prediction. For the Higgs-charm Yukawa coupling modifier,

κ_{c}

, the observed (expected) 95% C.L. interval is

1.1 < | κ_{c} | < 5.5

(

| κ_{c} | < 3.4

), the most stringent constraint to date.

Note:

All the figures and tables, including additional supplementary figures and tables, can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/HIG-21-008 (CMS Public Pages)

p p: scattering
p p: colliding beams
Higgs particle: hadroproduction
vector boson: associated production
Higgs particle: hadronic decay
charm: pair production
jet: charm
charm: particle identification
Higgs particle: coupling
coupling: Yukawa

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Search for Higgs Boson Decay to a Charm Quark-Antiquark Pair in Proton-Proton Collisions at s=13 TeV

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Search for Higgs Boson Decay to a Charm Quark-Antiquark Pair in Proton-Proton Collisions at $\sqrt{s} = 13 TeV$