Mohammad Hossein Rahimi Abkenar, Ahmad Mohamadnejad, Reza Sepahvand
{"title":"Spin trio: A dark matter scenario","authors":"Mohammad Hossein Rahimi Abkenar, Ahmad Mohamadnejad, Reza Sepahvand","doi":"10.1103/physrevd.111.055018","DOIUrl":null,"url":null,"abstract":"We investigate a beyond Standard Model (SM) featuring five new fields. Four fields encompassing three distinct spin states—scalar (S</a:mi></a:math>), spinor (<c:math xmlns:c=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><c:msup><c:mi>ψ</c:mi><c:mrow><c:mn>1</c:mn><c:mo>,</c:mo><c:mn>2</c:mn></c:mrow></c:msup></c:math>), and vector (<e:math xmlns:e=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><e:msub><e:mi>V</e:mi><e:mi>μ</e:mi></e:msub></e:math>)—together form the multicomponent dark matter (DM), while the fifth (scalar) field (<g:math xmlns:g=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><g:mi>ϕ</g:mi></g:math>) carries a unit charge under a dark <i:math xmlns:i=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><i:msub><i:mi>U</i:mi><i:mi>D</i:mi></i:msub><i:mo stretchy=\"false\">(</i:mo><i:mn>1</i:mn><i:mo stretchy=\"false\">)</i:mo></i:math> gauge symmetry, enabling SM-DM interactions via the Higgs portal. Although the model maintains classical scale invariance, loop effects break electroweak symmetry. The parameter space is constrained by scale invariance, DM relic density, and direct detection results. Our study aims to identify feasible model regions and evaluate detectability in future experiments. We analyze processes like DM annihilations, semiannihilations, and conversions, integrating them into Boltzmann equations to calculate DM abundances. Random parameter scans reveal regions compatible with current data, including constraints from direct detection experiments like XENONnT and PandaX-4T. Our results show the model’s viability across a broad range of DM masses. <jats:supplementary-material> <jats:copyright-statement>Published by the American Physical Society</jats:copyright-statement> <jats:copyright-year>2025</jats:copyright-year> </jats:permissions> </jats:supplementary-material>","PeriodicalId":20167,"journal":{"name":"Physical Review D","volume":"24 1","pages":""},"PeriodicalIF":5.0000,"publicationDate":"2025-03-17","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.111.055018","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 investigate a beyond Standard Model (SM) featuring five new fields. Four fields encompassing three distinct spin states—scalar (S), spinor (ψ1,2), and vector (Vμ)—together form the multicomponent dark matter (DM), while the fifth (scalar) field (ϕ) carries a unit charge under a dark UD(1) gauge symmetry, enabling SM-DM interactions via the Higgs portal. Although the model maintains classical scale invariance, loop effects break electroweak symmetry. The parameter space is constrained by scale invariance, DM relic density, and direct detection results. Our study aims to identify feasible model regions and evaluate detectability in future experiments. We analyze processes like DM annihilations, semiannihilations, and conversions, integrating them into Boltzmann equations to calculate DM abundances. Random parameter scans reveal regions compatible with current data, including constraints from direct detection experiments like XENONnT and PandaX-4T. Our results show the model’s viability across a broad range of DM masses. Published by the American Physical Society2025
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.