Combination of searches for Higgs boson decays into a photon and a massless dark photon using pp collisions at √s = 13 TeV with the ATLAS detector

ATLAS Collaboration; S. Alderweireldt; J.F. Allen; T.M. Carter; P. J.  Clark; J.R. Curran; D. Duda; S. M. Farrington; Y. Gao; J.M. Gargan; R.Y. Gonzalez Andana; C. Jiang; C. Leonidopoulos; M. Firdaus M. Soberi; V. J.  Martin; L. Mijović; V.A. Parrish; E.A. Pender; T. Qiu; J.M. Silva; F. Ustuner; E.M. Villhauer; H. Watson; B.M. Wynne; Z. Xu; E. Zaid

doi:10.1007/JHEP08(2024)153

Combination of searches for Higgs boson decays into a photon and a massless dark photon using pp collisions at √s = 13 TeV with the ATLAS detector

ATLAS Collaboration, S. Alderweireldt, J.F. Allen, T.M. Carter, P. J. Clark, J.R. Curran, D. Duda, S. M. Farrington, Y. Gao, J.M. Gargan, R.Y. Gonzalez Andana, C. Jiang, C. Leonidopoulos, M. Firdaus M. Soberi, V. J. Martin, L. Mijović, V.A. Parrish, E.A. Pender, T. Qiu, J.M. SilvaF. Ustuner, E.M. Villhauer, H. Watson, B.M. Wynne, Z. Xu, E. Zaid

School of Physics and Astronomy

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

Abstract

A combination of searches for Higgs boson decays into a visible photon and a
massless dark photon (H → γγd) is presented using 139 fb−1 of proton-proton collision data at a centre-of-mass energy of √s = 13 TeV recorded by the ATLAS detector at the Large Hadron Collider. The observed (expected) 95% confidence level upper limit on the Standard Model Higgs boson decay branching ratio is determined to be B(H → γγd) < 1.3% (1.5)%. The search is also sensitive to higher-mass Higgs bosons decaying into the same final state. The observed (expected) 95% confidence level limit on the cross-section times branching ratio ranges from 16 fb (20 fb) for mH = 400 GeV to 1.0 fb (1.5 fb) for mH = 3 TeV. Results are also interpreted in the context of a minimal simplified model.

Original language	English
Article number	153
Pages (from-to)	1-34
Number of pages	34
Journal	Journal of High Energy Physics
Volume	2024
Issue number	8
DOIs	https://doi.org/10.1007/JHEP08(2024)153
Publication status	Published - 20 Aug 2024

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10.1007/JHEP08(2024)153Licence: Creative Commons: Attribution (CC-BY)

3 Finished
3 Active

Upgrade of the ATLAS detector at the LHC (2023-26)
Clark, P. (Principal Investigator)
Science and Technology Facilities Council
1/04/23 → 31/03/27
Project: Research
Experimental Particle Physics at the University of Edinburgh
Leonidopoulos, C. (Principal Investigator)
Science and Technology Facilities Council
1/04/23 → 31/03/26
Project: Research
Experimental Particle Physics at the University of Edinburgh
Leonidopoulos, C. (Principal Investigator)
Science and Technology Facilities Council
1/10/22 → 31/03/26
Project: Research

Cite this

ATLAS Collaboration, Alderweireldt, S., Allen, J. F., Carter, T. M., Clark, P. J., Curran, J. R., Duda, D., Farrington, S. M., Gao, Y., Gargan, J. M., Gonzalez Andana, R. Y., Jiang, C., Leonidopoulos, C., Soberi, M. F. M., Martin, V. J., Mijović, L., Parrish, V. A., Pender, E. A., Qiu, T., ... Zaid, E. (2024). Combination of searches for Higgs boson decays into a photon and a massless dark photon using pp collisions at √s = 13 TeV with the ATLAS detector. Journal of High Energy Physics, 2024(8), 1-34. Article 153. https://doi.org/10.1007/JHEP08(2024)153

@article{4ccc6efb3cf14dd291bb1f5fe1202d0a,

title = "Combination of searches for Higgs boson decays into a photon and a massless dark photon using pp collisions at √s = 13 TeV with the ATLAS detector",

abstract = "A combination of searches for Higgs boson decays into a visible photon and amassless dark photon (H → γγd) is presented using 139 fb−1 of proton-proton collision data at a centre-of-mass energy of √s = 13 TeV recorded by the ATLAS detector at the Large Hadron Collider. The observed (expected) 95% confidence level upper limit on the Standard Model Higgs boson decay branching ratio is determined to be B(H → γγd) < 1.3% (1.5)%. The search is also sensitive to higher-mass Higgs bosons decaying into the same final state. The observed (expected) 95% confidence level limit on the cross-section times branching ratio ranges from 16 fb (20 fb) for mH = 400 GeV to 1.0 fb (1.5 fb) for mH = 3 TeV. Results are also interpreted in the context of a minimal simplified model.",

author = "{ATLAS Collaboration} and S. Alderweireldt and J.F. Allen and T.M. Carter and Clark, {P. J.} and J.R. Curran and D. Duda and Farrington, {S. M.} and Y. Gao and J.M. Gargan and {Gonzalez Andana}, R.Y. and C. Jiang and C. Leonidopoulos and Soberi, {M. Firdaus M.} and Martin, {V. J.} and L. Mijovi{\'c} and V.A. Parrish and E.A. Pender and T. Qiu and J.M. Silva and F. Ustuner and E.M. Villhauer and H. Watson and B.M. Wynne and Z. Xu and E. Zaid",

year = "2024",

month = aug,

day = "20",

doi = "10.1007/JHEP08(2024)153",

language = "English",

volume = "2024",

pages = "1--34",

journal = "Journal of High Energy Physics",

issn = "1126-6708",

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ATLAS Collaboration, Alderweireldt, S, Allen, JF, Carter, TM, Clark, PJ, Curran, JR, Duda, D , Farrington, SM , Gao, Y, Gargan, JM, Gonzalez Andana, RY, Jiang, C, Leonidopoulos, C, Soberi, MFM, Martin, VJ , Mijović, L, Parrish, VA, Pender, EA, Qiu, T , Silva, JM, Ustuner, F, Villhauer, EM, Watson, H , Wynne, BM , Xu, Z & Zaid, E 2024, 'Combination of searches for Higgs boson decays into a photon and a massless dark photon using pp collisions at √s = 13 TeV with the ATLAS detector', Journal of High Energy Physics, vol. 2024, no. 8, 153, pp. 1-34. https://doi.org/10.1007/JHEP08(2024)153

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T1 - Combination of searches for Higgs boson decays into a photon and a massless dark photon using pp collisions at √s = 13 TeV with the ATLAS detector

AU - ATLAS Collaboration

AU - Alderweireldt, S.

AU - Allen, J.F.

AU - Carter, T.M.

AU - Clark, P. J.

AU - Curran, J.R.

AU - Duda, D.

AU - Farrington, S. M.

AU - Gao, Y.

AU - Gargan, J.M.

AU - Gonzalez Andana, R.Y.

AU - Jiang, C.

AU - Leonidopoulos, C.

AU - Soberi, M. Firdaus M.

AU - Martin, V. J.

AU - Mijović, L.

AU - Parrish, V.A.

AU - Pender, E.A.

AU - Qiu, T.

AU - Silva, J.M.

AU - Ustuner, F.

AU - Villhauer, E.M.

AU - Watson, H.

AU - Wynne, B.M.

AU - Xu, Z.

AU - Zaid, E.

PY - 2024/8/20

Y1 - 2024/8/20

N2 - A combination of searches for Higgs boson decays into a visible photon and amassless dark photon (H → γγd) is presented using 139 fb−1 of proton-proton collision data at a centre-of-mass energy of √s = 13 TeV recorded by the ATLAS detector at the Large Hadron Collider. The observed (expected) 95% confidence level upper limit on the Standard Model Higgs boson decay branching ratio is determined to be B(H → γγd) < 1.3% (1.5)%. The search is also sensitive to higher-mass Higgs bosons decaying into the same final state. The observed (expected) 95% confidence level limit on the cross-section times branching ratio ranges from 16 fb (20 fb) for mH = 400 GeV to 1.0 fb (1.5 fb) for mH = 3 TeV. Results are also interpreted in the context of a minimal simplified model.

AB - A combination of searches for Higgs boson decays into a visible photon and amassless dark photon (H → γγd) is presented using 139 fb−1 of proton-proton collision data at a centre-of-mass energy of √s = 13 TeV recorded by the ATLAS detector at the Large Hadron Collider. The observed (expected) 95% confidence level upper limit on the Standard Model Higgs boson decay branching ratio is determined to be B(H → γγd) < 1.3% (1.5)%. The search is also sensitive to higher-mass Higgs bosons decaying into the same final state. The observed (expected) 95% confidence level limit on the cross-section times branching ratio ranges from 16 fb (20 fb) for mH = 400 GeV to 1.0 fb (1.5 fb) for mH = 3 TeV. Results are also interpreted in the context of a minimal simplified model.

U2 - 10.1007/JHEP08(2024)153

DO - 10.1007/JHEP08(2024)153

M3 - Article

SN - 1126-6708

VL - 2024

SP - 1

EP - 34

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 8

M1 - 153

ER -

Combination of searches for Higgs boson decays into a photon and a massless dark photon using pp collisions at √s = 13 TeV with the ATLAS detector

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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