A Solution to the Coincidence Puzzle of $\Omega_{B}$ and $\Omega_{DM}$

We show that a class of Affleck--Dine baryogenesis directly relates the observed mass density of baryons, \Omega_{B}, to that of dark matter, \Omega_{DM}. In this scenario, the ratio of baryon to dark matter mass density is solely determined by the low energy parameters, except for an O(0.1) effecti...

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Detalles Bibliográficos
Autores principales: Fujii, Masaaki, Yanagida, T.
Lenguaje:eng
Publicado: 2002
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1016/S0370-2693(02)02341-9
http://cds.cern.ch/record/558046
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author Fujii, Masaaki
Yanagida, T.
author_facet Fujii, Masaaki
Yanagida, T.
author_sort Fujii, Masaaki
collection CERN
description We show that a class of Affleck--Dine baryogenesis directly relates the observed mass density of baryons, \Omega_{B}, to that of dark matter, \Omega_{DM}. In this scenario, the ratio of baryon to dark matter mass density is solely determined by the low energy parameters, except for an O(0.1) effective CP-violating phase. We find that \Omega_{B}/\Omega_{DM}=O(0.1) with reasonable parameters, which lies surprisingly just in the range of observation. This scenario is totally free from the cosmological gravitino problem, and independent of the detailed history of the Universe as long as it satisfies quite weak constraints.
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institution Organización Europea para la Investigación Nuclear
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spelling cern-5580462023-03-14T18:02:56Zdoi:10.1016/S0370-2693(02)02341-9http://cds.cern.ch/record/558046engFujii, MasaakiYanagida, T.A Solution to the Coincidence Puzzle of $\Omega_{B}$ and $\Omega_{DM}$Particle Physics - PhenomenologyWe show that a class of Affleck--Dine baryogenesis directly relates the observed mass density of baryons, \Omega_{B}, to that of dark matter, \Omega_{DM}. In this scenario, the ratio of baryon to dark matter mass density is solely determined by the low energy parameters, except for an O(0.1) effective CP-violating phase. We find that \Omega_{B}/\Omega_{DM}=O(0.1) with reasonable parameters, which lies surprisingly just in the range of observation. This scenario is totally free from the cosmological gravitino problem, and independent of the detailed history of the Universe as long as it satisfies quite weak constraints.We show that a class of Affleck--Dine baryogenesis directly relates the observed mass density of baryons, \Omega_{B}, to that of dark matter, \Omega_{DM}. In this scenario, the ratio of baryon to dark matter mass density is solely determined by the low energy parameters, except for an O(0.1) effective CP-violating phase. We find that \Omega_{B}/\Omega_{DM}=O(0.1) with reasonable parameters, which lies surprisingly just in the range of observation. This scenario is totally free from the cosmological gravitino problem, and independent of the detailed history of the Universe as long as it satisfies quite weak constraints.We show that a class of Affleck–Dine baryogenesis directly relates the observed mass density of baryons, Ω B , to that of dark matter, Ω DM . In this scenario, the ratio of baryon to dark matter mass density is solely determined by the low energy parameters, except for an O (0.1) effective CP-violating phase. We find that Ω B /Ω DM = O (0.1) with reasonable parameters, which lies surprisingly just in the range of observation. This scenario is totally free from the cosmological gravitino problem, and independent of the detailed history of the Universe as long as it satisfies quite weak constraints.hep-ph/0206066CERN-TH-2002-124UT-02-37CERN-TH-2002-124UT-237oai:cds.cern.ch:5580462002-06-06
spellingShingle Particle Physics - Phenomenology
Fujii, Masaaki
Yanagida, T.
A Solution to the Coincidence Puzzle of $\Omega_{B}$ and $\Omega_{DM}$
title A Solution to the Coincidence Puzzle of $\Omega_{B}$ and $\Omega_{DM}$
title_full A Solution to the Coincidence Puzzle of $\Omega_{B}$ and $\Omega_{DM}$
title_fullStr A Solution to the Coincidence Puzzle of $\Omega_{B}$ and $\Omega_{DM}$
title_full_unstemmed A Solution to the Coincidence Puzzle of $\Omega_{B}$ and $\Omega_{DM}$
title_short A Solution to the Coincidence Puzzle of $\Omega_{B}$ and $\Omega_{DM}$
title_sort solution to the coincidence puzzle of $\omega_{b}$ and $\omega_{dm}$
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1016/S0370-2693(02)02341-9
http://cds.cern.ch/record/558046
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