Constraints on the Higgs boson self-coupling from single- and double-Higgs production with the ATLAS detector using pp collisions at √s= 13TeV

ATLAS Collaboration; J. R. Bensinger; C. Blocker; G. Sciolla

doi:10.1016/j.physletb.2023.137745

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Constraints on the Higgs boson self-coupling from single- and double-Higgs production with the ATLAS detector using pp collisions at √s= 13TeV

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Constraints on the Higgs boson self-coupling from single- and double-Higgs production with the ATLAS detector using pp collisions at √s= 13TeV

ATLAS Collaboration, J. R. Bensinger, C. Blocker and G. Sciolla

Physics letters. B Nuclear, elementary particle and high-energy physics, Vol.843, 137745

08/10/2023

DOI: https://doi.org/10.1016/j.physletb.2023.137745

Abstract

Astronomy & Astrophysics

Physics, Nuclear

Physics, Particles & Fields

Science & Technology

Physical Sciences

Physics

Constraints on the Higgs boson self-coupling are set by combining double-Higgs boson analyses in the bb over bar bb over bar , bb over bar & tau;+& tau;- and bb over bar & gamma; & gamma; decay channels with single-Higgs boson analyses targeting the & gamma;& gamma;, Z Z*, W W *, & tau;+& tau;- and bb over bar decay channels. The data used in these analyses were recorded by the ATLAS detector at the LHC in proton-proton collisions at & RADIC;s = 13 TeV and correspond to an integrated luminosity of 126-139 fb-1. The combination of the double-Higgs analyses sets an upper limit of & mu;HH < 2.4 at 95% confidence level on the double-Higgs production cross-section normalised to its Standard Model prediction. Combining the single-Higgs and double-Higgs analyses, with the assumption that new physics affects only the Higgs boson self-coupling (& lambda;HHH), values outside the interval -0.4 < & kappa;& lambda; = (& lambda;HHH/& lambda;SM H H H ) < 6.3 are excluded at 95% confidence level. The combined single-Higgs and double-Higgs analyses provide results with fewer assumptions, by adding in the fit more coupling modifiers introduced to account for the Higgs boson interactions with the other Standard Model particles. In this relaxed scenario, the constraint becomes -1.4 < & kappa;& lambda; < 6.1 at 95% CL. & COPY; 2023 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons .org /licenses /by /4 .0/). Funded by SCOAP3.

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Title: Constraints on the Higgs boson self-coupling from single- and double-Higgs production with the ATLAS detector using pp collisions at √s= 13TeV
Creators: ATLAS Collaboration (Author)
J. R. Bensinger - Brandeis University
C. Blocker - Brandeis University
G. Sciolla - Brandeis University
Publication Details: Physics letters. B Nuclear, elementary particle and high-energy physics, Vol.843, 137745
Publisher: Elsevier
Number of pages: 20
Grant note: MSSR, Slovakia ANAS, Azerbaijan; Azerbaijan National Academy of Sciences (ANAS) Goran Gustafssons Stiftelser, Sweden FWF, Austria; Austrian Science Fund (FWF) NAWA, Poland; Polish National Agency for Academic Exchange (NAWA) Investissements d'Avenir Idex, France; Agence Nationale de la Recherche (ANR) BMWFW , Austria GSRI, Greece Benoziyo Center, Israel CAS, China; Chinese Academy of Sciences Wallenberg Foundation, Sweden IN2P3-CNRS, France; Centre National de la Recherche Scientifique (CNRS) Compute Canada, Canada Hong KongSAR, China RCN, Norway ERC, European Union; European Union (EU); European Research Council (ERC) RGC, China JINR NCN , Poland ANPCyT, Argentina; ANPCyT ANR, France; Agence Nationale de la Recherche (ANR) CNPq , Brazil; Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPQ) MESTD, Serbia; Ministry of Education, Science & Technological Development, Serbia Canarie, Canada HGF , Germany SRC, Sweden MES of Russia , Russian Federation; Russian Federation ARRS, Slovenia; Slovenian Research Agency - Slovenia Thales programme - EU-ESF, Greece; Thales Group MEYS CR, Czech Republic La Caixa Banking Foundation, Spain MEiN, Poland ERDF, European Union; European Union (EU); Marie Curie Actions NSERC, Canada; Natural Sciences and Engineering Research Council of Canada (NSERC) NRC KI, Russian Federation DOE , United States of America; United States Department of Energy (DOE) Herakleitos programme - EU-ESF, Greece MIZS, Slovenia Canton of Bern, Switzerland MPG, Germany; Max Planck Society BSF-NSF, Israel GIF, Israel; German-Israeli Foundation for Scientific Research and Development SSTC, Belarus MEXT, Japan; Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT) DSI/NRF, South Africa NSFC, China; National Natural Science Foundation of China (NSFC) Investissements d'Avenir Labex, France; Agence Nationale de la Recherche (ANR) CERN JSPS, Japan; Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT); Japan Society for the Promotion of Science CEA-DRF/IRFU, France INFN, Italy; Istituto Nazionale di Fisica Nucleare (INFN) ISF , Israel; Israel Science Foundation COST, European Union BMBF, Germany; Federal Ministry of Education & Research (BMBF) BCKDF, Canada DNRF, Denmark; National Research Foundation of Korea FCT, Portugal; Fundacao para a Ciencia e a Tecnologia (FCT) NSF, United States of America; National Science Foundation (NSF) Norwegian Financial Mechanism 2014-2021, Norway FAPESP, Brazil; Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP) MNE/IFA, Romania MOST , China; Ministry of Science and Technology, China Royal Society , United Kingdom; Royal Society DNSRC, Denmark; Danish Natural Science Research Council Marie Sklodowska-Curie Actions, European Union; European Union (EU); Marie Curie Actions Greek NSRF, Greece Canton of Geneva, Switzerland STFC, United Kingdom; UK Research & Innovation (UKRI); Science & Technology Facilities Council (STFC) CFI, Canada; Canada Foundation for Innovation DFG , Germany; German Research Foundation (DFG) CERCA Programme Generalitat de Catalunya, Spain AvH Foundation, Germany; Alexander von Humboldt Foundation NWO, Netherlands; Netherlands Organization for Scientific Research (NWO); Netherlands Government MICINN, Spain; Spanish Government SRNSFG, Georgia ARC, Australia; Australian Research Council CRC, Canada ANID, Chile NRC , Canada YerPhI, Armenia MOST, Taiwan; Ministry of Science and Technology, Taiwan CNRST, Morocco SNSF , Switzerland; Swiss National Science Foundation (SNSF) Minciencias, Colombia SERI, Switzerland TENMAK, Turkiye PROMETEO Programme Generalitat Valenciana, Spain Leverhulme Trust, United Kingdom; Leverhulme Trust Aristeia programme - EU-ESF, Greece Horizon 2020, European Union GenT Programme Generalitat Valenciana, Spain
Identifiers: 9924289019901921
Academic Unit: Martin A. Fisher School of Physics
Language: English
Resource Type: Journal article

Constraints on the Higgs boson self-coupling from single- and double-Higgs production with the ATLAS detector using pp collisions at √s= 13TeV

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