Combination of searches for invisible Higgs boson decays with the ATLAS experiment

ATLAS Collaboration; Paul Newman

doi:10.1103/PhysRevLett.122.231801

Combination of searches for invisible Higgs boson decays with the ATLAS experiment

ATLAS Collaboration, Paul Newman

Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

62 Citations (Scopus)

334 Downloads (Pure)

Abstract

Dark matter particles, if sufficiently light, may be produced in decays of the Higgs boson. This Letter presents a statistical combination of searches for $H\to\textrm{invisible}$ decays where $H$ is produced according to the Standard Model via vector boson fusion, $Z(\ell\ell)H$, and $W\!/\!Z(\textrm{had})H$, all performed with the ATLAS detector using 36.1 fb$^{-1}$ of $pp$ collisions at a center-of-mass energy of $\sqrt s = 13$ TeV at the LHC. In combination with the results at $\sqrt s = 7$ and 8 TeV, an exclusion limit on the $H\to\textrm{invisible}$ branching ratio of $0.26 (0.17^{+0.07}_{-0.05})$ at 95% confidence level is observed (expected).

Original language	English
Article number	231801
Journal	Physical Review Letters
Volume	122
Issue number	23
DOIs	https://doi.org/10.1103/PhysRevLett.122.231801
Publication status	Published - 13 Jun 2019

Bibliographical note

29 pages in total, author list starting in page 13, 3 figures, 1 table, submitted to Phys. Rev. Lett. All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/HIGG-2018-54/

Keywords

hep-ex

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10.1103/PhysRevLett.122.231801Licence: Creative Commons: Attribution (CC BY)

Atlas_Combination_of_searches_Physical_Review_Letters_2019
Checked for eligibility:19/06/2019 Aaboud, Morad, et al. "Combination of searches for invisible Higgs boson decays with the ATLAS experiment." Physical Review Letters 122.23 (2019): 231801. https://doi.org/10.1103/PhysRevLett.122.231801
Final published version, 442 KBLicence: Creative Commons: Attribution (CC BY)

Cite this

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title = "Combination of searches for invisible Higgs boson decays with the ATLAS experiment",

abstract = "Dark matter particles, if sufficiently light, may be produced in decays of the Higgs boson. This Letter presents a statistical combination of searches for $H\to\textrm{invisible}$ decays where $H$ is produced according to the Standard Model via vector boson fusion, $Z(\ell\ell)H$, and $W\!/\!Z(\textrm{had})H$, all performed with the ATLAS detector using 36.1 fb$^{-1}$ of $pp$ collisions at a center-of-mass energy of $\sqrt s = 13$ TeV at the LHC. In combination with the results at $\sqrt s = 7$ and 8 TeV, an exclusion limit on the $H\to\textrm{invisible}$ branching ratio of $0.26 (0.17^{+0.07}_{-0.05})$ at 95% confidence level is observed (expected). ",

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N2 - Dark matter particles, if sufficiently light, may be produced in decays of the Higgs boson. This Letter presents a statistical combination of searches for $H\to\textrm{invisible}$ decays where $H$ is produced according to the Standard Model via vector boson fusion, $Z(\ell\ell)H$, and $W\!/\!Z(\textrm{had})H$, all performed with the ATLAS detector using 36.1 fb$^{-1}$ of $pp$ collisions at a center-of-mass energy of $\sqrt s = 13$ TeV at the LHC. In combination with the results at $\sqrt s = 7$ and 8 TeV, an exclusion limit on the $H\to\textrm{invisible}$ branching ratio of $0.26 (0.17^{+0.07}_{-0.05})$ at 95% confidence level is observed (expected).

AB - Dark matter particles, if sufficiently light, may be produced in decays of the Higgs boson. This Letter presents a statistical combination of searches for $H\to\textrm{invisible}$ decays where $H$ is produced according to the Standard Model via vector boson fusion, $Z(\ell\ell)H$, and $W\!/\!Z(\textrm{had})H$, all performed with the ATLAS detector using 36.1 fb$^{-1}$ of $pp$ collisions at a center-of-mass energy of $\sqrt s = 13$ TeV at the LHC. In combination with the results at $\sqrt s = 7$ and 8 TeV, an exclusion limit on the $H\to\textrm{invisible}$ branching ratio of $0.26 (0.17^{+0.07}_{-0.05})$ at 95% confidence level is observed (expected).

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JO - Physical Review Letters

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IS - 23

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ER -

Combination of searches for invisible Higgs boson decays with the ATLAS experiment

Abstract

Bibliographical note

Keywords

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