Combination of searches for invisible higgs boson decays with the ATLAS Experiment

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→invisible decays where H is produced according to the Standard Model via vector boson fusion, Z(ℓℓ)H, and W/Z(had)H, all performed with the ATL...

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Main Authors: Aaboud, Morad (Author) , Anders, Christoph (Author) , Andrei, George Victor (Author) , Antel, Claire (Author) , Baas, Alessandra Edda (Author) , Bolz, Arthur (Author) , Brandt, Oleg (Author) , Dreyer, Sascha S. (Author) , Dunford, Monica (Author) , Ferreira de Lima, Danilo Enoque (Author) , Franchino, Silvia (Author) , Geisler, Manuel Patrice (Author) , Giulini, Maddalena (Author) , Hanke, Paul (Author) , Helary, Louis (Author) , Jongmanns, Jan (Author) , Kolb, Mathis (Author) , Krishnan, Anjali (Author) , Kugel, Andreas (Author) , Lisovyi, Mykhailo (Author) , Meyer zu Theenhausen, Hanno (Author) , Napolitano, Fabrizio (Author) , Narrias Villar, Daniel Isaac (Author) , S̜ahinsoy, Merve (Author) , Schöning, André (Author) , Schultz-Coulon, Hans-Christian (Author) , Spieker, Thomas (Author) , Stamen, Rainer (Author) , Starovoitov, Pavel (Author) , Suchek, Stanislav (Author) , Wang, Jike (Author) , Weber, Sebastian (Author) , Wessels, Martin (Author) , Yue, Xiaoguang (Author)
Corporate Author: ATLAS Collaboration (Author)
Format: Article (Journal)
Language:English
Published: 13 Juni 2019
In: Physical review letters
Year: 2019, Volume: 122, Issue: 23, Pages: 231801-1 - 231801-20
ISSN:1079-7114
DOI:10.1103/PhysRevLett.122.231801
Online Access:Verlag, Volltext: https://doi.org/10.1103/PhysRevLett.122.231801
Verlag: https://link.aps.org/doi/10.1103/PhysRevLett.122.231801
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Author Notes:M. Aaboud et al (ATLAS Collaboration)
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Summary: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→invisible decays where H is produced according to the Standard Model via vector boson fusion, Z(ℓℓ)H, and W/Z(had)H, all performed with the ATLAS detector using 36.1 fb−1 of pp collisions at a center-of-mass energy of s√=13 TeV at the LHC. In combination with the results at s√=7 and 8 TeV, an exclusion limit on the H→invisible branching ratio of 0.26(0.17+0.07−0.05) at 95% confidence level is observed (expected).
Item Description:ATLAS Collaboration: M. Aaboud, V. Andrei, A.E. Bolz, M. Dunford, D.E. Ferreira de Lima, S. Franchino, L. Helary, J. Jongmanns, A. Krishnan, A. Kugel, F. Napolitano, A. Schoening, H-C. Schultz-Coulon, T.M. Spieker, R. Stamen, P. Starovoitov, S. Weber, M. Wessels, X. Yue [und weitere]
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Physical Description:Online Resource
ISSN:1079-7114
DOI:10.1103/PhysRevLett.122.231801