Combination of searches for invisible decays of the Higgs boson using 139 fb−1 of proton-proton collision data at TeV collected with the ATLAS experiment

ATLAS Publications; T.M. Carter; R.Y. Gonzalez Andana; A. Hasib; V.A. Parrish; E.A. Pender; T. Qiu; E.P. Takeva; N. Themistokleous; E.M. Villhauer; E. Zaid

doi:10.1016/j.physletb.2023.137963

Combination of searches for invisible decays of the Higgs boson using 139 fb−1 of proton-proton collision data at TeV collected with the ATLAS experiment

ATLAS Publications, T.M. Carter, R.Y. Gonzalez Andana, A. Hasib, V.A. Parrish, E.A. Pender, T. Qiu, E.P. Takeva, N. Themistokleous, E.M. Villhauer, E. Zaid

School of Physics and Astronomy

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

Abstract

Many extensions of the Standard Model predict the production of dark matter particles at the LHC. Sufficiently light dark matter particles may be produced in decays of the Higgs boson that would appear invisible to the detector. This Letter presents a statistical combination of searches for H → invisible decays where multiple production modes of the Standard Model Higgs boson are considered. These searches are performed with the ATLAS detector using 139 fb−1 of proton–proton collisions at a centre–of–mass energy of √s = 13 TeV at the LHC. In combination with the results at √s = 7 TeV and 8 TeV, an upper limit on the H → invisible branching ratio of 0.107 (0.077) at the 95% confidence level
is observed (expected). These results are also interpreted in the context of models where the 125 GeV Higgs boson acts as a portal to dark matter, and limits are set on the scattering cross-section of weakly interacting massive particles and nucleons.

Original language	English
Article number	137963
Pages (from-to)	1-19
Number of pages	19
Journal	Physics Letters B
Volume	842
DOIs	https://doi.org/10.1016/j.physletb.2023.137963
Publication status	Published - 10 Jul 2023

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http://arxiv.org/abs/2301.10731

3 Finished
3 Active

Upgrade of the ATLAS detector at the LHC (2023-26)
Clark, P. (Principal Investigator)
1/04/23 → 31/03/26
Project: Research
Experimental Particle Physics at the University of Edinburgh
Leonidopoulos, C. (Principal Investigator)
1/04/23 → 30/09/25
Project: Research
Experimental Particle Physics at the University of Edinburgh
Leonidopoulos, C. (Principal Investigator)
1/10/22 → 30/09/25
Project: Research

Cite this

ATLAS Publications, Carter, T. M., Gonzalez Andana, R. Y., Hasib, A., Parrish, V. A., Pender, E. A., Qiu, T., Takeva, E. P., Themistokleous, N., Villhauer, E. M., & Zaid, E. (2023). Combination of searches for invisible decays of the Higgs boson using 139 fb−1 of proton-proton collision data at TeV collected with the ATLAS experiment. Physics Letters B, 842, 1-19. Article 137963. https://doi.org/10.1016/j.physletb.2023.137963

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title = "Combination of searches for invisible decays of the Higgs boson using 139 fb−1 of proton-proton collision data at TeV collected with the ATLAS experiment",

abstract = "Many extensions of the Standard Model predict the production of dark matter particles at the LHC. Sufficiently light dark matter particles may be produced in decays of the Higgs boson that would appear invisible to the detector. This Letter presents a statistical combination of searches for H → invisible decays where multiple production modes of the Standard Model Higgs boson are considered. These searches are performed with the ATLAS detector using 139 fb−1 of proton–proton collisions at a centre–of–mass energy of √s = 13 TeV at the LHC. In combination with the results at √s = 7 TeV and 8 TeV, an upper limit on the H → invisible branching ratio of 0.107 (0.077) at the 95% confidence levelis observed (expected). These results are also interpreted in the context of models where the 125 GeV Higgs boson acts as a portal to dark matter, and limits are set on the scattering cross-section of weakly interacting massive particles and nucleons.",

author = "{ATLAS Publications} and Clark, {Philip James} and Sinead Farrington and Yanyan Gao and Christos Leonidopoulos and Martin, {Victoria Jane} and Liza Mijovic and Benjamin Wynne and Sara Alderweireldt and T.M. Carter and {Gonzalez Andana}, R.Y. and A. Hasib and V.A. Parrish and E.A. Pender and T. Qiu and E.P. Takeva and N. Themistokleous and E.M. Villhauer and E. Zaid",

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doi = "10.1016/j.physletb.2023.137963",

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ATLAS Publications, Carter, TM, Gonzalez Andana, RY, Hasib, A, Parrish, VA, Pender, EA, Qiu, T, Takeva, EP, Themistokleous, N, Villhauer, EM & Zaid, E 2023, 'Combination of searches for invisible decays of the Higgs boson using 139 fb−1 of proton-proton collision data at TeV collected with the ATLAS experiment', Physics Letters B, vol. 842, 137963, pp. 1-19. https://doi.org/10.1016/j.physletb.2023.137963

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T1 - Combination of searches for invisible decays of the Higgs boson using 139 fb−1 of proton-proton collision data at TeV collected with the ATLAS experiment

AU - ATLAS Publications

AU - Clark, Philip James

AU - Farrington, Sinead

AU - Gao, Yanyan

AU - Leonidopoulos, Christos

AU - Martin, Victoria Jane

AU - Mijovic, Liza

AU - Wynne, Benjamin

AU - Alderweireldt, Sara

AU - Carter, T.M.

AU - Gonzalez Andana, R.Y.

AU - Hasib, A.

AU - Parrish, V.A.

AU - Pender, E.A.

AU - Qiu, T.

AU - Takeva, E.P.

AU - Themistokleous, N.

AU - Villhauer, E.M.

AU - Zaid, E.

PY - 2023/7/10

Y1 - 2023/7/10

N2 - Many extensions of the Standard Model predict the production of dark matter particles at the LHC. Sufficiently light dark matter particles may be produced in decays of the Higgs boson that would appear invisible to the detector. This Letter presents a statistical combination of searches for H → invisible decays where multiple production modes of the Standard Model Higgs boson are considered. These searches are performed with the ATLAS detector using 139 fb−1 of proton–proton collisions at a centre–of–mass energy of √s = 13 TeV at the LHC. In combination with the results at √s = 7 TeV and 8 TeV, an upper limit on the H → invisible branching ratio of 0.107 (0.077) at the 95% confidence levelis observed (expected). These results are also interpreted in the context of models where the 125 GeV Higgs boson acts as a portal to dark matter, and limits are set on the scattering cross-section of weakly interacting massive particles and nucleons.

AB - Many extensions of the Standard Model predict the production of dark matter particles at the LHC. Sufficiently light dark matter particles may be produced in decays of the Higgs boson that would appear invisible to the detector. This Letter presents a statistical combination of searches for H → invisible decays where multiple production modes of the Standard Model Higgs boson are considered. These searches are performed with the ATLAS detector using 139 fb−1 of proton–proton collisions at a centre–of–mass energy of √s = 13 TeV at the LHC. In combination with the results at √s = 7 TeV and 8 TeV, an upper limit on the H → invisible branching ratio of 0.107 (0.077) at the 95% confidence levelis observed (expected). These results are also interpreted in the context of models where the 125 GeV Higgs boson acts as a portal to dark matter, and limits are set on the scattering cross-section of weakly interacting massive particles and nucleons.

U2 - 10.1016/j.physletb.2023.137963

DO - 10.1016/j.physletb.2023.137963

M3 - Article

SN - 0370-2693

VL - 842

SP - 1

EP - 19

JO - Physics Letters B

JF - Physics Letters B

M1 - 137963

ER -

Combination of searches for invisible decays of the Higgs boson using 139 fb−1 of proton-proton collision data at TeV collected with the ATLAS experiment

Abstract

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Projects

Upgrade of the ATLAS detector at the LHC (2023-26)

Experimental Particle Physics at the University of Edinburgh

Experimental Particle Physics at the University of Edinburgh

Cite this