Flavoring the production of Higgs boson pairs

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

Physical Review D Pub Date : 2025-03-26 DOI:10.1103/physrevd.111.055028

M. A. Arroyo-Ureña, J. Lorenzo Díaz-Cruz, E. A. Herrera-Chacón, T. A. Valencia-Pérez, J. Mejia Guisao

{"title":"Flavoring the production of Higgs boson pairs","authors":"M. A. Arroyo-Ureña, J. Lorenzo Díaz-Cruz, E. A. Herrera-Chacón, T. A. Valencia-Pérez, J. Mejia Guisao","doi":"10.1103/physrevd.111.055028","DOIUrl":null,"url":null,"abstract":"We present a study on the possibility of observing a hypothetical particle known as the flavon H</a:mi>F</a:mi></a:msub></a:math>, which is predicted in an extension of the standard model that includes the so-called Froggatt-Nielsen mechanism. The proposed decay channel is through a <c:math xmlns:c=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><c:mrow><c:mi>b</c:mi><c:mover accent=\"true\"><c:mrow><c:mi>b</c:mi></c:mrow><c:mrow><c:mo stretchy=\"false\">¯</c:mo></c:mrow></c:mover><c:mi>h</c:mi></c:mrow></c:math> final state, where the Higgs boson (<g:math xmlns:g=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><g:mi>h</g:mi></g:math>) decays to a pair of photons or a pair of <i:math xmlns:i=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><i:mi>b</i:mi></i:math> quarks <k:math xmlns:k=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><k:mrow><k:mo stretchy=\"false\">(</k:mo><k:mi>h</k:mi><k:mo stretchy=\"false\">→</k:mo><k:mi>γ</k:mi><k:mi>γ</k:mi><k:mo>,</k:mo><k:mi>b</k:mi><k:mover accent=\"true\"><k:mrow><k:mi>b</k:mi></k:mrow><k:mrow><k:mo stretchy=\"false\">¯</k:mo></k:mrow></k:mover><k:mo stretchy=\"false\">)</k:mo></k:mrow></k:math>. We found that, under special scenarios of the model parameter space, the processes analyzed could provide evidence for the existence of the flavon in the next stage of the LHC: the High Luminosity LHC. Specifically, we predict a of <r:math xmlns:r=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><r:mn>5</r:mn><r:mi>σ</r:mi></r:math> (<t:math xmlns:t=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><t:mn>2</t:mn><t:mi>σ</t:mi></t:math>) in the <v:math xmlns:v=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><v:mi>h</v:mi><v:mo stretchy=\"false\">→</v:mo><v:mi>b</v:mi><v:mover accent=\"true\"><v:mi>b</v:mi><v:mo stretchy=\"false\">¯</v:mo></v:mover></v:math> (h</ab:mi>→</ab:mo>γ</ab:mi>γ</ab:mi></ab:math>) channel for a flavon mass of 800 (900) GeV and an integrated luminosity of 2500 <db:math xmlns:db=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><db:mrow><db:mo stretchy=\"false\">(</db:mo><db:mn>3000</db:mn><db:mo stretchy=\"false\">)</db:mo><db:mtext> </db:mtext><db:mtext> </db:mtext><db:msup><db:mrow><db:mi>fb</db:mi></db:mrow><db:mrow><db:mo>−</db:mo><db:mn>1</db:mn></db:mrow></db:msup></db:mrow></db:math>. Published by the American Physical Society 2025 ","PeriodicalId":20167,"journal":{"name":"Physical Review D","volume":"16 1","pages":""},"PeriodicalIF":5.0000,"publicationDate":"2025-03-26","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.111.055028","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 present a study on the possibility of observing a hypothetical particle known as the flavon HF, which is predicted in an extension of the standard model that includes the so-called Froggatt-Nielsen mechanism. The proposed decay channel is through a bb¯h final state, where the Higgs boson (h) decays to a pair of photons or a pair of b quarks (h→γγ,bb¯). We found that, under special scenarios of the model parameter space, the processes analyzed could provide evidence for the existence of the flavon in the next stage of the LHC: the High Luminosity LHC. Specifically, we predict a of 5σ (2σ) in the h→bb¯ (h→γγ) channel for a flavon mass of 800 (900) GeV and an integrated luminosity of 2500 (3000) fb−1.

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.