Search for Heavy Resonances Decaying into a Photon and a Hadronically Decaying Higgs Boson in pp Collisions at √s=13  TeV with the ATLAS Detector

ATLAS Publications; T.M. Carter; M. Faucci Giannelli; A. Hasib; M.P. Heath; S. Palazzo; A. Søgaard; A. Strubig; E.P. Takeva; A.J. Taylor; N. Themistokleous; E.M. Villhauer

doi:10.1103/PhysRevLett.125.251802

Search for Heavy Resonances Decaying into a Photon and a Hadronically Decaying Higgs Boson in pp Collisions at √s=13 TeV with the ATLAS Detector

ATLAS Publications, T.M. Carter, M. Faucci Giannelli, A. Hasib, M.P. Heath, S. Palazzo, A. Søgaard, A. Strubig, E.P. Takeva, A.J. Taylor, N. Themistokleous, E.M. Villhauer

School of Physics and Astronomy

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

Abstract

This Letter presents a search for the production of new heavy resonances decaying into a Higgs boson and a photon using proton-proton collision data at √s=13 TeV collected by the ATLAS detector at the LHC. The data correspond to an integrated luminosity of 139 fb−1. The analysis is performed by reconstructing hadronically decaying Higgs boson (H→b¯b) candidates as single large-radius jets. A novel algorithm using information about the jet constituents in the center-of-mass frame of the jet is implemented to identify the two b quarks in the single jet. No significant excess of events is observed above the expected background. Upper limits are set on the production cross-section times branching fraction for narrow spin-1 resonances decaying into a Higgs boson and a photon in the resonance mass range from 0.7 to 4 TeV, cross-section times branching fractions are excluded between 11.6 fb and 0.11 fb at a 95% confidence level.

Original language	English
Article number	251802
Pages (from-to)	1-20
Number of pages	20
Journal	Physical Review Letters
Volume	125
Issue number	25
DOIs	https://doi.org/10.1103/PhysRevLett.125.251802
Publication status	Published - 18 Dec 2020

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http://arxiv.org/abs/2008.05928

3 Finished
3 Active

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

Cite this

ATLAS Publications, Carter, T. M., Faucci Giannelli, M., Hasib, A., Heath, M. P., Palazzo, S., Søgaard, A., Strubig, A., Takeva, E. P., Taylor, A. J., Themistokleous, N., & Villhauer, E. M. (2020). Search for Heavy Resonances Decaying into a Photon and a Hadronically Decaying Higgs Boson in pp Collisions at √s=13 TeV with the ATLAS Detector. Physical Review Letters, 125(25), 1-20. Article 251802. https://doi.org/10.1103/PhysRevLett.125.251802

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title = "Search for Heavy Resonances Decaying into a Photon and a Hadronically Decaying Higgs Boson in pp Collisions at √s=13 TeV with the ATLAS Detector",

abstract = "This Letter presents a search for the production of new heavy resonances decaying into a Higgs boson and a photon using proton-proton collision data at √s=13 TeV collected by the ATLAS detector at the LHC. The data correspond to an integrated luminosity of 139 fb−1. The analysis is performed by reconstructing hadronically decaying Higgs boson (H→b¯b) candidates as single large-radius jets. A novel algorithm using information about the jet constituents in the center-of-mass frame of the jet is implemented to identify the two b quarks in the single jet. No significant excess of events is observed above the expected background. Upper limits are set on the production cross-section times branching fraction for narrow spin-1 resonances decaying into a Higgs boson and a photon in the resonance mass range from 0.7 to 4 TeV, cross-section times branching fractions are excluded between 11.6 fb and 0.11 fb at a 95% confidence level.",

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 T.M. Carter and {Faucci Giannelli}, M. and A. Hasib and M.P. Heath and S. Palazzo and A. S{\o}gaard and A. Strubig and E.P. Takeva and A.J. Taylor and N. Themistokleous and E.M. Villhauer",

year = "2020",

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doi = "10.1103/PhysRevLett.125.251802",

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ATLAS Publications, Carter, TM, Faucci Giannelli, M, Hasib, A, Heath, MP, Palazzo, S, Søgaard, A, Strubig, A, Takeva, EP, Taylor, AJ, Themistokleous, N & Villhauer, EM 2020, 'Search for Heavy Resonances Decaying into a Photon and a Hadronically Decaying Higgs Boson in pp Collisions at √s=13 TeV with the ATLAS Detector', Physical Review Letters, vol. 125, no. 25, 251802, pp. 1-20. https://doi.org/10.1103/PhysRevLett.125.251802

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T1 - Search for Heavy Resonances Decaying into a Photon and a Hadronically Decaying Higgs Boson in pp Collisions at √s=13 TeV with the ATLAS Detector

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 - Carter, T.M.

AU - Faucci Giannelli, M.

AU - Hasib, A.

AU - Heath, M.P.

AU - Palazzo, S.

AU - Søgaard, A.

AU - Strubig, A.

AU - Takeva, E.P.

AU - Taylor, A.J.

AU - Themistokleous, N.

AU - Villhauer, E.M.

PY - 2020/12/18

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N2 - This Letter presents a search for the production of new heavy resonances decaying into a Higgs boson and a photon using proton-proton collision data at √s=13 TeV collected by the ATLAS detector at the LHC. The data correspond to an integrated luminosity of 139 fb−1. The analysis is performed by reconstructing hadronically decaying Higgs boson (H→b¯b) candidates as single large-radius jets. A novel algorithm using information about the jet constituents in the center-of-mass frame of the jet is implemented to identify the two b quarks in the single jet. No significant excess of events is observed above the expected background. Upper limits are set on the production cross-section times branching fraction for narrow spin-1 resonances decaying into a Higgs boson and a photon in the resonance mass range from 0.7 to 4 TeV, cross-section times branching fractions are excluded between 11.6 fb and 0.11 fb at a 95% confidence level.

AB - This Letter presents a search for the production of new heavy resonances decaying into a Higgs boson and a photon using proton-proton collision data at √s=13 TeV collected by the ATLAS detector at the LHC. The data correspond to an integrated luminosity of 139 fb−1. The analysis is performed by reconstructing hadronically decaying Higgs boson (H→b¯b) candidates as single large-radius jets. A novel algorithm using information about the jet constituents in the center-of-mass frame of the jet is implemented to identify the two b quarks in the single jet. No significant excess of events is observed above the expected background. Upper limits are set on the production cross-section times branching fraction for narrow spin-1 resonances decaying into a Higgs boson and a photon in the resonance mass range from 0.7 to 4 TeV, cross-section times branching fractions are excluded between 11.6 fb and 0.11 fb at a 95% confidence level.

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DO - 10.1103/PhysRevLett.125.251802

M3 - Article

SN - 0031-9007

VL - 125

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EP - 20

JO - Physical Review Letters

JF - Physical Review Letters

IS - 25

M1 - 251802

ER -

Search for Heavy Resonances Decaying into a Photon and a Hadronically Decaying Higgs Boson in pp Collisions at √s=13 TeV with the ATLAS Detector

Abstract

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Experimental Particle Physics at the University of Edinburgh

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

Experimental Particle Physics at the University of Edinburgh

Cite this