Search for a resonance decaying into a scalar particle and a Higgs boson in the final state with two bottom quarks and two photons in proton–proton collisions at s = 13 TeV with the ATLAS detector

The ATLAS collaboration

doi:10.1007/JHEP11(2024)047

Search for a resonance decaying into a scalar particle and a Higgs boson in the final state with two bottom quarks and two photons in proton–proton collisions at s = 13 TeV with the ATLAS detector

The ATLAS collaboration

School of Physics and Astronomy

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

Abstract

A search for the resonant production of a heavy scalar X decaying into a Higgs boson and a new lighter scalar S, through the process X → S(→bb¯)H(→γγ), where the two photons are consistent with the Higgs boson decay, is performed. The search is conducted using an integrated luminosity of 140 fb⁻¹ of proton-proton collision data at a centre-of-mass energy of 13 TeV recorded with the ATLAS detector at the Large Hadron Collider. The search is performed over the mass range 170 ≤ m_X ≤ 1000 GeV and 15 ≤ m_S ≤ 500 GeV. Parameterised neural networks are used to enhance the signal purity and to achieve continuous sensitivity in a domain of the (m_X, m_S) plane. No significant excess above the expected background is found and 95% CL upper limits are set on the cross section times branching ratio, ranging from 39 fb to 0.09 fb. The largest deviation from the background-only expectation occurs for (m_X, m_S) = (575, 200) GeV with a local (global) significance of 3.5 (2.0) standard deviations.

Original language	English
Article number	47
Journal	Journal of High Energy Physics
Volume	2024
Issue number	11
DOIs	https://doi.org/10.1007/JHEP11(2024)047
State	Published - Nov 2024

Funding

Funders	Funder number
BSF-NSF
Australian Research Council
DRAC
BMWFW
Centre National pour la Recherche Scientifique et Technique
Fundação para a Ciência e a Tecnologia
European Union, Future Artificial Intelligence Research
Cooperative Research Centres, Australian Government Department of Industry
National Science Foundation
CEA-DRF
Science and Technology Facilities Council
Horizon 2020, ICSC-NextGenerationEU
H2020 Marie Skłodowska-Curie Actions
Nederlandse Organisatie voor Wetenschappelijk Onderzoek
Ministry of Science and Technology, Taiwan
Israel Science Foundation
Wallenberg Foundation
Baden-Württemberg Stiftung
MVZI
PROMETEO
Neubauer Family Foundation
Staatssekretariat für Bildung, Forschung und Innovation
The Slovenian Research and Innovation Agency
Generalitat de Catalunya
Instituto Nazionale di Fisica Nucleare
Austrian Science Fund
Agencia Nacional de Investigación y Desarrollo
Bundesministerium für Bildung und Forschung
Canada Foundation for Innovation
Helmholtz-Gemeinschaft
Danmarks Grundforskningsfond
Conselho Nacional de Desenvolvimento Científico e Tecnológico
Canarie
Horizon 2020 Framework Programme
Göran Gustafssons Stiftelser
European Commission
Ministarstvo Prosvete, Nauke i Tehnološkog Razvoja
European Cooperation in Science and Technology
EU-ESF
International Council of Shopping Centers
RGC
Fundação de Amparo à Pesquisa do Estado de São Paulo
Institutul de Fizică Atomică
Natural Sciences and Engineering Research Council of Canada
Nella and Leon Benoziyo Center for Neurological Diseases, Weizmann Institute of Science
GenT Programmes Generalitat Valenciana, Spain
National Science and Technology Council
Irish Rugby Football Union
Cantons of Bern and Geneva
Chinese Academy of Sciences
Defence Science Institute
MNE
Agencia Nacional de Promoción Científica y Tecnológica
Royal Society
Minerva Foundation
National Research Foundation
Generalitat Valenciana
CERN
Ministerstvo Školství, Mládeže a Tělovýchovy
National Research Council Canada
Alexander von Humboldt-Stiftung
Multiple Sclerosis Scientific Research Foundation
British Columbia Knowledge Development Fund
Ministry of Education, Culture, Sports, Science and Technology
UK Research and Innovation
H2020 European Research Council	ERC - 101002463
MUCCA	CHIST-ERA-19-XAI-00
Fondo Nacional de Desarrollo Científico y Tecnológico	1230987, 1230812, 1190886, 1210400
European Research Council	101089007, 948254
Leverhulme Trust	RPG-2020-004
Fundación BBVA	LEO22-1-603
Ministero dell’Istruzione, dell’Università e della Ricerca	PRIN - 20223N7F8K - PNRR M4.C2.1.1
CERN-CZ	21/SCI/017
FAIR-NextGenerationEU	PE00000013
Investissements d’Avenir Labex	ANR-11-LABX-0012
National Natural Science Foundation of China	12275265, PRIMUS/21/SCI/017, 12175119, NSFC-12075060
La Caixa Banking Foundation	LCF/BQ/PI20/11760025
Center for Advancing Research Impact in Society	J1-3010
Deutsche Forschungsgemeinschaft	DFG - CR 312/5-2, DFG - 469666862
UNCE	SCI/013
Narodowa Agencja Wymiany Akademickiej	PPN/PPO/2020/1/00002/U/00001
DNSRC	IN2P3-CNRS
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung	PCEFP2_194658
European Regional Development Fund	IDIFEDER/2018/048
Narodowe Centrum Nauki	UMO-2022/47/O/ST2/00148, UMO-2020/37/B/ST2/01043, UMO-2019/34/E/ST2/00393, UMO-2021/40/C/ST2/00187, 2022/47/B/ST2/03059, 2021/42/E/ST2/00350
Vetenskapsrådet	VR 2018-00482, 2021-03651, VR 2022-04683, VR 2022-03845
U.S. Department of Energy	ECA DE-AC02-76SF00515
Knut och Alice Wallenbergs Stiftelse	KAW 2022.0358, KAW 2018.0157, KAW 2017.0100, KAW 2018.0458, KAW 2019.0447
Ministerio de Ciencia e Innovación	PID2021-125273NB, RYC2021-031273-I, RYC2022-038164-I, PCI2022-135018-2, RYC2020-030254-I, RYC2019-028510-I
GenT Programmes Generalitat Valenciana	CIDEGENT/2019/023, CIDEGENT/2019/027
Japan Society for the Promotion of Science	JP21H05085, JP22H04944, JP22H01227, JP22KK0227
Norwegian Financial Mechanism	2014-2021
Norges Forskningsråd	RCN-314472
Agence Nationale de la Recherche	ANR-20-CE31-0013, ANR-22-EDIR-0002, ANR-21-CE31-0013, ANR-21-CE31-0022

Keywords

Beyond Standard Model
Hadron-Hadron Scattering
Hadron-Hadron scattering
Higgs Physics

Access to Document

10.1007/JHEP11(2024)047

Cite this

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title = "Search for a resonance decaying into a scalar particle and a Higgs boson in the final state with two bottom quarks and two photons in proton–proton collisions at s = 13 TeV with the ATLAS detector",

abstract = "A search for the resonant production of a heavy scalar X decaying into a Higgs boson and a new lighter scalar S, through the process X → S(→bb¯)H(→γγ), where the two photons are consistent with the Higgs boson decay, is performed. The search is conducted using an integrated luminosity of 140 fb−1 of proton-proton collision data at a centre-of-mass energy of 13 TeV recorded with the ATLAS detector at the Large Hadron Collider. The search is performed over the mass range 170 ≤ mX ≤ 1000 GeV and 15 ≤ mS ≤ 500 GeV. Parameterised neural networks are used to enhance the signal purity and to achieve continuous sensitivity in a domain of the (mX, mS) plane. No significant excess above the expected background is found and 95% CL upper limits are set on the cross section times branching ratio, ranging from 39 fb to 0.09 fb. The largest deviation from the background-only expectation occurs for (mX, mS) = (575, 200) GeV with a local (global) significance of 3.5 (2.0) standard deviations.",

keywords = "Beyond Standard Model, Hadron-Hadron Scattering, Hadron-Hadron scattering, Higgs Physics",

author = "{The ATLAS collaboration} and G. Aad and E. Aakvaag and B. Abbott and K. Abeling and Abicht, {N. J.} and Abidi, {S. H.} and M. Aboelela and A. Aboulhorma and H. Abramowicz and H. Abreu and Y. Abulaiti and Acharya, {B. S.} and A. Ackermann and {Adam Bourdarios}, C. and L. Adamczyk and Addepalli, {S. V.} and Addison, {M. J.} and J. Adelman and A. Adiguzel and T. Adye and Affolder, {A. A.} and Y. Afik and Agaras, {M. N.} and J. Agarwala and A. Aggarwal and C. Agheorghiesei and A. Ahmad and F. Ahmadov and Ahmed, {W. S.} and S. Ahuja and X. Ai and G. Aielli and A. Aikot and L. Barak and U. Barron and G. Bella and Y. Benhammou and Biswal, {J. P.} and E. Etzion and Frid, {Y. Y.} and O. Kuprash and Lutz, {M. S.} and R. Nayak and G. Ninio and {Pascual Dominguez}, L. and D. Reikher and {Salvador Salas}, A. and A. Soffer and Tamir, {N. M.} and D. Vannicola",

note = "Publisher Copyright: {\textcopyright} The Author(s) 2024.",

year = "2024",

month = nov,

doi = "10.1007/JHEP11(2024)047",

language = "אנגלית",

volume = "2024",

journal = "Journal of High Energy Physics",

issn = "1126-6708",

publisher = "Springer Verlag",

number = "11",

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TY - JOUR

T1 - Search for a resonance decaying into a scalar particle and a Higgs boson in the final state with two bottom quarks and two photons in proton–proton collisions at s = 13 TeV with the ATLAS detector

AU - The ATLAS collaboration

AU - Aad, G.

AU - Aakvaag, E.

AU - Abbott, B.

AU - Abeling, K.

AU - Abicht, N. J.

AU - Abidi, S. H.

AU - Aboelela, M.

AU - Aboulhorma, A.

AU - Abramowicz, H.

AU - Abreu, H.

AU - Abulaiti, Y.

AU - Acharya, B. S.

AU - Ackermann, A.

AU - Adam Bourdarios, C.

AU - Adamczyk, L.

AU - Addepalli, S. V.

AU - Addison, M. J.

AU - Adelman, J.

AU - Adiguzel, A.

AU - Adye, T.

AU - Affolder, A. A.

AU - Afik, Y.

AU - Agaras, M. N.

AU - Agarwala, J.

AU - Aggarwal, A.

AU - Agheorghiesei, C.

AU - Ahmad, A.

AU - Ahmadov, F.

AU - Ahmed, W. S.

AU - Ahuja, S.

AU - Ai, X.

AU - Aielli, G.

AU - Aikot, A.

AU - Barak, L.

AU - Barron, U.

AU - Bella, G.

AU - Benhammou, Y.

AU - Biswal, J. P.

AU - Etzion, E.

AU - Frid, Y. Y.

AU - Kuprash, O.

AU - Lutz, M. S.

AU - Nayak, R.

AU - Ninio, G.

AU - Pascual Dominguez, L.

AU - Reikher, D.

AU - Salvador Salas, A.

AU - Soffer, A.

AU - Tamir, N. M.

AU - Vannicola, D.

PY - 2024/11

Y1 - 2024/11

N2 - A search for the resonant production of a heavy scalar X decaying into a Higgs boson and a new lighter scalar S, through the process X → S(→bb¯)H(→γγ), where the two photons are consistent with the Higgs boson decay, is performed. The search is conducted using an integrated luminosity of 140 fb−1 of proton-proton collision data at a centre-of-mass energy of 13 TeV recorded with the ATLAS detector at the Large Hadron Collider. The search is performed over the mass range 170 ≤ mX ≤ 1000 GeV and 15 ≤ mS ≤ 500 GeV. Parameterised neural networks are used to enhance the signal purity and to achieve continuous sensitivity in a domain of the (mX, mS) plane. No significant excess above the expected background is found and 95% CL upper limits are set on the cross section times branching ratio, ranging from 39 fb to 0.09 fb. The largest deviation from the background-only expectation occurs for (mX, mS) = (575, 200) GeV with a local (global) significance of 3.5 (2.0) standard deviations.

AB - A search for the resonant production of a heavy scalar X decaying into a Higgs boson and a new lighter scalar S, through the process X → S(→bb¯)H(→γγ), where the two photons are consistent with the Higgs boson decay, is performed. The search is conducted using an integrated luminosity of 140 fb−1 of proton-proton collision data at a centre-of-mass energy of 13 TeV recorded with the ATLAS detector at the Large Hadron Collider. The search is performed over the mass range 170 ≤ mX ≤ 1000 GeV and 15 ≤ mS ≤ 500 GeV. Parameterised neural networks are used to enhance the signal purity and to achieve continuous sensitivity in a domain of the (mX, mS) plane. No significant excess above the expected background is found and 95% CL upper limits are set on the cross section times branching ratio, ranging from 39 fb to 0.09 fb. The largest deviation from the background-only expectation occurs for (mX, mS) = (575, 200) GeV with a local (global) significance of 3.5 (2.0) standard deviations.

KW - Beyond Standard Model

KW - Hadron-Hadron Scattering

KW - Hadron-Hadron scattering

KW - Higgs Physics

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DO - 10.1007/JHEP11(2024)047

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AN - SCOPUS:85209994119

SN - 1126-6708

VL - 2024

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 11

M1 - 47

ER -

Search for a resonance decaying into a scalar particle and a Higgs boson in the final state with two bottom quarks and two photons in proton–proton collisions at s = 13 TeV with the ATLAS detector

Abstract

Funding

Keywords

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