Constraints on anomalous Higgs boson couplings to vector bosons and fermions from the production of Higgs bosons using the $ \tau\tau$ final state

CMS Collaboration

Preprint

PUBDB-2022-04483

Constraints on anomalous Higgs boson couplings to vector bosons and fermions from the production of Higgs bosons using the $ \tau\tau$ final state

CMS Collaboration (Collaboration author)DESY*

2022

[10.3204/PUBDB-2022-04483]

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Please use a persistent id in citations: doi:10.3204/PUBDB-2022-04483

Report No.: CERN-EP-2022-021; CMS-HIG-20-007; arXiv:2205.05120

Abstract: A study of anomalous couplings of the Higgs boson to vector bosons and fermions is presented. The data were recorded by the CMS experiment at a center-of-mass energy of pp collisions at the LHC of 13 TeV and correspond to an integrated luminosity of 138 fb$^{-1}$. The study uses Higgs boson candidates produced mainly in gluon fusion or electroweak vector boson fusion at the LHC that subsequently decay to a pair of $\tau$ leptons. Matrix-element and machine-learning techniques were employed in a search for anomalous interactions. The results are combined with those from the four-lepton and two-photon decay channels to yield the most stringent constraints on anomalous Higgs boson couplings to date. The pure $CP$-odd scenario of the Higgs boson coupling to gluons is excluded at 2.4 standard deviations. The results are consistent with the standard model predictions.

Keyword(s): p p: colliding beams ; Higgs particle: coupling ; photon: pair production ; p p: scattering ; gluon gluon: fusion ; vector boson: fusion ; Higgs particle: hadroproduction ; Higgs particle: leptonic decay ; tau: pair production ; coupling: anomaly ; CERN LHC Coll ; radiative decay ; electroweak interaction ; CMS ; coupling constant: upper limit ; neural network ; statistical analysis ; data analysis method ; experimental results ; 13000 GeV-cms

Note: Submitted to Physical Review D. All figures and tables can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/HIG-20-007 (CMS Public Pages)

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