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Relating the baryon asymmetry to the thermal relic dark matter density

Research output: Contribution to Journal/Magazine › Journal article › peer-review

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Relating the baryon asymmetry to the thermal relic dark matter density. / McDonald, John.
In: Physical Review D, Vol. 83, No. 8, 083509, 12.04.2011.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

McDonald, J 2011, 'Relating the baryon asymmetry to the thermal relic dark matter density', Physical Review D, vol. 83, no. 8, 083509. https://doi.org/10.1103/PhysRevD.83.083509

APA

McDonald, J. (2011). Relating the baryon asymmetry to the thermal relic dark matter density. Physical Review D, 83(8), Article 083509. https://doi.org/10.1103/PhysRevD.83.083509

Vancouver

McDonald J. Relating the baryon asymmetry to the thermal relic dark matter density. Physical Review D. 2011 Apr 12;83(8):083509. doi: 10.1103/PhysRevD.83.083509

Author

McDonald, John. / Relating the baryon asymmetry to the thermal relic dark matter density. In: Physical Review D. 2011 ; Vol. 83, No. 8.

Bibtex

@article{61e66e6b71704b9e9bddcd0ee3e29c37,
title = "Relating the baryon asymmetry to the thermal relic dark matter density",
abstract = "We present a generic framework, {"}baryomorphosis{"}, which modifies the baryon asymmetry to be naturally of the order of a typical thermal relic WIMP density. We consider a simple scalar-based model to show how this is possible. This model introduces a sector in which a large initial baryon asymmetry is injected into particles ({"}annihilons{"}) phi_B, \bar{phi}_B of mass ~ 100 GeV - 1 TeV. phi_B-\bar{phi}_B annihilations convert the initial phi_B, \bar{phi}_B asymmetry to a final asymmetry with a thermal relic WIMP-like density. This subsequently decays to a conventional baryon asymmetry whose magnitude is naturally related to the density of thermal relic WIMP dark matter. In this way the two coincidences of baryons and dark matter i.e. why their densities are similar to each other and why they are both similar to a WIMP thermal relic density (the {"}WIMP miracle{"}), may be understood. The model may be tested by the production of annihilons at colliders.",
author = "John McDonald",
note = "{\textcopyright} 2011 American Physical Society 7 pages, 2 figures; Modified to address B washout issue. Higgs replaced by inert doublet, no mixing of annihilons. Version to be published in PRD, typos corrected",
year = "2011",
month = apr,
day = "12",
doi = "10.1103/PhysRevD.83.083509",
language = "English",
volume = "83",
journal = "Physical Review D",
issn = "1550-7998",
publisher = "American Physical Society",
number = "8",

}

RIS

TY - JOUR

T1 - Relating the baryon asymmetry to the thermal relic dark matter density

AU - McDonald, John

N1 - © 2011 American Physical Society 7 pages, 2 figures; Modified to address B washout issue. Higgs replaced by inert doublet, no mixing of annihilons. Version to be published in PRD, typos corrected

PY - 2011/4/12

Y1 - 2011/4/12

N2 - We present a generic framework, "baryomorphosis", which modifies the baryon asymmetry to be naturally of the order of a typical thermal relic WIMP density. We consider a simple scalar-based model to show how this is possible. This model introduces a sector in which a large initial baryon asymmetry is injected into particles ("annihilons") phi_B, \bar{phi}_B of mass ~ 100 GeV - 1 TeV. phi_B-\bar{phi}_B annihilations convert the initial phi_B, \bar{phi}_B asymmetry to a final asymmetry with a thermal relic WIMP-like density. This subsequently decays to a conventional baryon asymmetry whose magnitude is naturally related to the density of thermal relic WIMP dark matter. In this way the two coincidences of baryons and dark matter i.e. why their densities are similar to each other and why they are both similar to a WIMP thermal relic density (the "WIMP miracle"), may be understood. The model may be tested by the production of annihilons at colliders.

AB - We present a generic framework, "baryomorphosis", which modifies the baryon asymmetry to be naturally of the order of a typical thermal relic WIMP density. We consider a simple scalar-based model to show how this is possible. This model introduces a sector in which a large initial baryon asymmetry is injected into particles ("annihilons") phi_B, \bar{phi}_B of mass ~ 100 GeV - 1 TeV. phi_B-\bar{phi}_B annihilations convert the initial phi_B, \bar{phi}_B asymmetry to a final asymmetry with a thermal relic WIMP-like density. This subsequently decays to a conventional baryon asymmetry whose magnitude is naturally related to the density of thermal relic WIMP dark matter. In this way the two coincidences of baryons and dark matter i.e. why their densities are similar to each other and why they are both similar to a WIMP thermal relic density (the "WIMP miracle"), may be understood. The model may be tested by the production of annihilons at colliders.

UR - http://www.scopus.com/inward/record.url?scp=79960752990&partnerID=8YFLogxK

U2 - 10.1103/PhysRevD.83.083509

DO - 10.1103/PhysRevD.83.083509

M3 - Journal article

VL - 83

JO - Physical Review D

JF - Physical Review D

SN - 1550-7998

IS - 8

M1 - 083509

ER -