Search for a heavy Higgs boson decaying into a Z boson and another heavy Higgs boson in the bb and W W final states 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; E.P. Takeva; A.J. Taylor; N. Themistokleous; E.M. Villhauer

doi:10.1140/epjc/s10052-021-09117-5

Search for a heavy Higgs boson decaying into a Z boson and another heavy Higgs boson in the bb and W W final states 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, 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 / Description of output

A search for a heavy neutral Higgs boson, A, decaying into a Z boson and another heavy Higgs boson, H , is performed using a data sample corresponding to an integrated luminosity of 139 fb−1 from proton–proton collisions at √s = 13 TeV recorded by the ATLAS detector at the LHC. The search considers the Z boson decaying into electrons or muons and the H boson into a pair of b-quarks
or W bosons. The mass range considered is 230–800 GeV for the A boson and 130–700 GeV for the H boson. The data are in good agreement with the background predicted by the Standard Model, and therefore 95% confidence-level upper limits for σ × B(A → Z H ) × B(H → bb or H → W W ) are set. The upper limits are in the range 0.0062–0.380 pb for the H → bb channel and in the range 0.023–8.9 pb for the H → W W channel. An interpretation of the results in
the context of two-Higgs-doublet models is also given.

Original language	English
Article number	396
Pages (from-to)	1-36
Number of pages	36
Journal	The European Physical Journal C
Volume	81
Issue number	5
DOIs	https://doi.org/10.1140/epjc/s10052-021-09117-5
Publication status	Published - 7 May 2021

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10.1140/epjc/s10052-021-09117-5Licence: Creative Commons: Attribution (CC-BY)

http://arxiv.org/abs/2011.05639

3 Finished
3 Active

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.
1/04/23 → 30/09/25
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., Takeva, E. P., Taylor, A. J., Themistokleous, N., & Villhauer, E. M. (2021). Search for a heavy Higgs boson decaying into a Z boson and another heavy Higgs boson in the bb and W W final states in pp collisions at √s = 13 TeV with the ATLAS detector. The European Physical Journal C, 81(5), 1-36. Article 396. https://doi.org/10.1140/epjc/s10052-021-09117-5

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title = "Search for a heavy Higgs boson decaying into a Z boson and another heavy Higgs boson in the bb and W W final states in pp collisions at √s = 13 TeV with the ATLAS detector",

abstract = "A search for a heavy neutral Higgs boson, A, decaying into a Z boson and another heavy Higgs boson, H , is performed using a data sample corresponding to an integrated luminosity of 139 fb−1 from proton–proton collisions at √s = 13 TeV recorded by the ATLAS detector at the LHC. The search considers the Z boson decaying into electrons or muons and the H boson into a pair of b-quarksor W bosons. The mass range considered is 230–800 GeV for the A boson and 130–700 GeV for the H boson. The data are in good agreement with the background predicted by the Standard Model, and therefore 95% confidence-level upper limits for σ × B(A → Z H ) × B(H → bb or H → W W ) are set. The upper limits are in the range 0.0062–0.380 pb for the H → bb channel and in the range 0.023–8.9 pb for the H → W W channel. An interpretation of the results inthe context of two-Higgs-doublet models is also given.",

author = "{ATLAS Publications} and Clark, {Philip James} and Sinead Farrington and Yanyan Gao and Christos Leonidopoulos and Martin, {Victoria Jane} and S. Eisenhardt 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 E.P. Takeva and A.J. Taylor and N. Themistokleous and E.M. Villhauer",

year = "2021",

month = may,

day = "7",

doi = "10.1140/epjc/s10052-021-09117-5",

language = "English",

volume = "81",

pages = "1--36",

journal = "The European Physical Journal C",

issn = "1434-6052",

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ATLAS Publications, Carter, TM, Faucci Giannelli, M, Hasib, A, Heath, MP, Palazzo, S, Søgaard, A, Takeva, EP, Taylor, AJ, Themistokleous, N & Villhauer, EM 2021, 'Search for a heavy Higgs boson decaying into a Z boson and another heavy Higgs boson in the bb and W W final states in pp collisions at √s = 13 TeV with the ATLAS detector', The European Physical Journal C, vol. 81, no. 5, 396, pp. 1-36. https://doi.org/10.1140/epjc/s10052-021-09117-5

Search for a heavy Higgs boson decaying into a Z boson and another heavy Higgs boson in the bb and W W final states in pp collisions at √s = 13 TeV with the ATLAS detector. / ATLAS Publications; Carter, T.M.; Faucci Giannelli, M. et al.
In: The European Physical Journal C, Vol. 81, No. 5, 396, 07.05.2021, p. 1-36.

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

TY - JOUR

T1 - Search for a heavy Higgs boson decaying into a Z boson and another heavy Higgs boson in the bb and W W final states 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 - Eisenhardt, S.

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 - Takeva, E.P.

AU - Taylor, A.J.

AU - Themistokleous, N.

AU - Villhauer, E.M.

PY - 2021/5/7

Y1 - 2021/5/7

N2 - A search for a heavy neutral Higgs boson, A, decaying into a Z boson and another heavy Higgs boson, H , is performed using a data sample corresponding to an integrated luminosity of 139 fb−1 from proton–proton collisions at √s = 13 TeV recorded by the ATLAS detector at the LHC. The search considers the Z boson decaying into electrons or muons and the H boson into a pair of b-quarksor W bosons. The mass range considered is 230–800 GeV for the A boson and 130–700 GeV for the H boson. The data are in good agreement with the background predicted by the Standard Model, and therefore 95% confidence-level upper limits for σ × B(A → Z H ) × B(H → bb or H → W W ) are set. The upper limits are in the range 0.0062–0.380 pb for the H → bb channel and in the range 0.023–8.9 pb for the H → W W channel. An interpretation of the results inthe context of two-Higgs-doublet models is also given.

AB - A search for a heavy neutral Higgs boson, A, decaying into a Z boson and another heavy Higgs boson, H , is performed using a data sample corresponding to an integrated luminosity of 139 fb−1 from proton–proton collisions at √s = 13 TeV recorded by the ATLAS detector at the LHC. The search considers the Z boson decaying into electrons or muons and the H boson into a pair of b-quarksor W bosons. The mass range considered is 230–800 GeV for the A boson and 130–700 GeV for the H boson. The data are in good agreement with the background predicted by the Standard Model, and therefore 95% confidence-level upper limits for σ × B(A → Z H ) × B(H → bb or H → W W ) are set. The upper limits are in the range 0.0062–0.380 pb for the H → bb channel and in the range 0.023–8.9 pb for the H → W W channel. An interpretation of the results inthe context of two-Higgs-doublet models is also given.

U2 - 10.1140/epjc/s10052-021-09117-5

DO - 10.1140/epjc/s10052-021-09117-5

M3 - Article

SN - 1434-6052

VL - 81

SP - 1

EP - 36

JO - The European Physical Journal C

JF - The European Physical Journal C

IS - 5

M1 - 396

ER -

Search for a heavy Higgs boson decaying into a Z boson and another heavy Higgs boson in the bb and W W final states in pp collisions at √s = 13 TeV with the ATLAS detector

Abstract / Description of output

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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