Search for dark matter produced in association with a Higgs boson decaying to γγ or τ + τ at √s=13 TeV

The CMS collaboration

Research output: Contribution to journalArticle

4 Citations (Scopus)

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 τ 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 τ leptons.[Figure not available: see fulltext.].

Original languageEnglish
Article number46
JournalJournal of High Energy Physics
Volume2018
Issue number9
DOIs
Publication statusPublished - 1 Sep 2018

Fingerprint

Higgs bosons
dark matter
leptons
recoilings
protons
cross sections
transverse momentum
center of mass
confidence
bosons
luminosity
collisions
photons
products
interactions
energy

Keywords

  • Dark matter
  • Hadron-Hadron scattering (experiments)

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Search for dark matter produced in association with a Higgs boson decaying to γγ or τ + τ at √s=13 TeV. / The CMS collaboration.

In: Journal of High Energy Physics, Vol. 2018, No. 9, 46, 01.09.2018.

Research output: Contribution to journalArticle

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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 τ 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 τ leptons.[Figure not available: see fulltext.].",
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author = "{The CMS collaboration} and Sirunyan, {A. M.} and A. Tumasyan and W. Adam and F. Ambrogi and E. Asilar and T. Bergauer and J. Brandstetter and M. Dragicevic and J. Er{\"o} and {Escalante Del Valle}, A. and M. Flechl and R. Fr{\"u}hwirth and Ghete, {V. M.} and J. Hrubec and M. Jeitler and N. Krammer and I. Kr{\"a}tschmer and D. Liko and T. Madlener and I. Mikulec and N. Rad and H. Rohringer and J. Schieck and R. Sch{\"o}fbeck and M. Spanring and D. Spitzbart and A. Taurok and W. Waltenberger and J. Wittmann and Wulz, {C. E.} and M. Zarucki and V. Chekhovsky and V. Mossolov and {Suarez Gonzalez}, J. and {De Wolf}, {E. A.} and {Di Croce}, D. and X. Janssen and V. Danilov and Kim, {J. H.} and Kim, {J. H.} and Kim, {J. H.} and A. Zarubin and Y. Ivanov and V. Kim and V. Oreshkin and S. Vavilov and V. Popov and A. Ershov and A. Babaev and S. Baidali",
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AU - Ambrogi, F.

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AU - Wulz, C. E.

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AU - Suarez Gonzalez, J.

AU - De Wolf, E. A.

AU - Di Croce, D.

AU - Janssen, X.

AU - Danilov, V.

AU - Kim, J. H.

AU - Kim, J. H.

AU - Kim, J. H.

AU - Zarubin, A.

AU - Ivanov, Y.

AU - Kim, V.

AU - Oreshkin, V.

AU - Vavilov, S.

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N2 - 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 τ 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 τ leptons.[Figure not available: see fulltext.].

AB - 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 τ 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 τ leptons.[Figure not available: see fulltext.].

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