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Search for dark matter produced in association with a Higgs boson decaying to gamma gamma or tau+ tau- at sqrt(s) = 13 TeV

BELFORTE, S.
•
CANDELISE, V.
•
CASARSA, M.
altro
ET AL (the CMS Collaboration)
2018
  • journal article

Periodico
JOURNAL OF HIGH ENERGY PHYSICS
Abstract
A search for dark matter particles is performed by looking for events with large transverse momentum imbalance and a recoiling Higgs boson decaying to either a pair of photons or a pair of tau leptons. The search is based on proton-proton collision data at a center-of-mass energy of 13 TeV collected at the CERN LHC in 2016 and corresponding to an integrated luminosity of 35.9 fb(-1). No significant excess over the expected standard model background is observed. Upper limits at 95% confidence level are presented for the product of the production cross section and branching fraction in the context of two benchmark simplified models. For the Z'-two-Higgs-doublet model (where Z' is a new massive boson mediator) with an intermediate heavy pseudoscalar particle of mass m(A) = 300 GeV and m(DM) = 100 GeV, the Z' masses from 550 GeV to 1265 GeV are excluded. For a baryonic Z' model, with m(DM) = 1 GeV, Z' masses up to 615 GeV are excluded. Results are also presented for the spin-independent cross section for the dark matter-nucleon interaction as a function of the mass of the dark matter particle. This is the first search for dark matter particles produced in association with a Higgs boson decaying to two tau leptons.
DOI
10.1007/JHEP09(2018)046
WOS
WOS:000444676300003
Archivio
http://hdl.handle.net/11368/2929199
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85053262561
https://link.springer.com/article/10.1007%2FJHEP09%282018%29046
Diritti
open access
FVG url
https://arts.units.it/bitstream/11368/2929199/1/Sirunyan2018_Article_SearchForDarkMatterProducedInA.pdf
Soggetti
  • PARTICLE PHYSICS

  • LARGE HADRON COLLIDER...

  • CMS

Web of Science© citazioni
9
Data di acquisizione
Mar 23, 2024
Visualizzazioni
3
Data di acquisizione
Apr 19, 2024
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