Hunting for a charged Higgs boson pair in proton-proton collisions

IF 5 2区物理与天体物理 Q1 Physics and Astronomy

Physical Review D Pub Date : 2025-01-24 DOI:10.1103/physrevd.111.015023

M. A. Arroyo-Ureña, E. A. Herrera-Chacón, S. Rosado-Navarro, Humberto Salazar

{"title":"Hunting for a charged Higgs boson pair in proton-proton collisions","authors":"M. A. Arroyo-Ureña, E. A. Herrera-Chacón, S. Rosado-Navarro, Humberto Salazar","doi":"10.1103/physrevd.111.015023","DOIUrl":null,"url":null,"abstract":"We explore the production and possible detection of a charged scalar Higgs pair H</a:mi>−</a:mo></a:msup>H</a:mi>+</a:mo></a:msup></a:math> decaying into the final state <c:math xmlns:c=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><c:mi>μ</c:mi><c:msub><c:mi>ν</c:mi><c:mi>μ</c:mi></c:msub><c:mi>c</c:mi><c:mi>b</c:mi></c:math> in proton-proton collisions at the LHC and its next step, the high luminosity LHC (HL-LHC). The charged scalars are predicted within the theoretical framework of the two-Higgs doublet model of type III (2HDM-III). As a test and validation of the model, we identify regions of the 2HDM-III parameter space that accommodate the current excess of events at <e:math xmlns:e=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><e:mn>3</e:mn><e:mi>σ</e:mi></e:math> in the process <g:math xmlns:g=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><g:mi mathvariant=\"script\">B</g:mi><g:mi mathvariant=\"script\">R</g:mi><g:mo stretchy=\"false\">(</g:mo><g:mi>t</g:mi><g:mo stretchy=\"false\">→</g:mo><g:msup><g:mi>H</g:mi><g:mo>±</g:mo></g:msup><g:mi>b</g:mi><g:mo stretchy=\"false\">)</g:mo><g:mo>×</g:mo><g:mi mathvariant=\"script\">B</g:mi><g:mi mathvariant=\"script\">R</g:mi><g:mo stretchy=\"false\">(</g:mo><g:msup><g:mi>H</g:mi><g:mo>±</g:mo></g:msup><g:mo stretchy=\"false\">→</g:mo><g:mi>c</g:mi><g:mi>b</g:mi><g:mo stretchy=\"false\">)</g:mo></g:math> for <s:math xmlns:s=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><s:msub><s:mi>M</s:mi><s:msup><s:mi>H</s:mi><s:mo>±</s:mo></s:msup></s:msub><s:mo>=</s:mo><s:mn>130</s:mn><s:mtext> </s:mtext><s:mtext> </s:mtext><s:mi>GeV</s:mi></s:math>, as reported by ATLAS Collaboration. Theoretical and additional experimental constraints are also included. Based on this, we propose realistic scenarios that could be brought under experimental scrutiny at the HL-LHC. Assuming the most favorable scenario, we predict a signal significance at the level of <u:math xmlns:u=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><u:mn>5</u:mn><u:mi>σ</u:mi></u:math> for a charged scalar boson mass <w:math xmlns:w=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><w:msub><w:mi>M</w:mi><w:msup><w:mi>H</w:mi><w:mo>±</w:mo></w:msup></w:msub></w:math> in the 100–350 GeV range. Published by the American Physical Society 2025 ","PeriodicalId":20167,"journal":{"name":"Physical Review D","volume":"14 1","pages":""},"PeriodicalIF":5.0000,"publicationDate":"2025-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Physical Review D","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1103/physrevd.111.015023","RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"Physics and Astronomy","Score":null,"Total":0}

引用次数: 0

Abstract

We explore the production and possible detection of a charged scalar Higgs pair H−H+ decaying into the final state μνμcb in proton-proton collisions at the LHC and its next step, the high luminosity LHC (HL-LHC). The charged scalars are predicted within the theoretical framework of the two-Higgs doublet model of type III (2HDM-III). As a test and validation of the model, we identify regions of the 2HDM-III parameter space that accommodate the current excess of events at 3σ in the process BR(t→H±b)×BR(H±→cb) for MH±=130 GeV, as reported by ATLAS Collaboration. Theoretical and additional experimental constraints are also included. Based on this, we propose realistic scenarios that could be brought under experimental scrutiny at the HL-LHC. Assuming the most favorable scenario, we predict a signal significance at the level of 5σ for a charged scalar boson mass MH± in the 100–350 GeV range.

Published by the American Physical Society

2025

查看原文本刊更多论文

求助全文

约1分钟内获得全文求助全文

来源期刊

Physical Review D 物理-天文与天体物理

CiteScore

9.20

自引率

36.00%

发文量

审稿时长

2 months

期刊介绍： Physical Review D (PRD) is a leading journal in elementary particle physics, field theory, gravitation, and cosmology and is one of the top-cited journals in high-energy physics. PRD covers experimental and theoretical results in all aspects of particle physics, field theory, gravitation and cosmology, including: Particle physics experiments, Electroweak interactions, Strong interactions, Lattice field theories, lattice QCD, Beyond the standard model physics, Phenomenological aspects of field theory, general methods, Gravity, cosmology, cosmic rays, Astrophysics and astroparticle physics, General relativity, Formal aspects of field theory, field theory in curved space, String theory, quantum gravity, gauge/gravity duality.