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B-ball baryogenesis and the baryon to dark matter ratio

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B-ball baryogenesis and the baryon to dark matter ratio. / Enqvist, Kari; McDonald, John.
In: Nuclear Physics B, Vol. 538, No. 1-2, 11.01.1999, p. 321-350.

Research output: Contribution to Journal/MagazineJournal articlepeer-review

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Enqvist K, McDonald J. B-ball baryogenesis and the baryon to dark matter ratio. Nuclear Physics B. 1999 Jan 11;538(1-2):321-350. doi: 10.1016/S0550-3213(98)00695-6

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Enqvist, Kari ; McDonald, John. / B-ball baryogenesis and the baryon to dark matter ratio. In: Nuclear Physics B. 1999 ; Vol. 538, No. 1-2. pp. 321-350.

Bibtex

@article{c83f55a173854d1a8de8e31e40ea01fa,
title = "B-ball baryogenesis and the baryon to dark matter ratio",
abstract = "We demonstrate that B-ball decay in the MSSM can naturally solve the puzzle of why the densities of baryons and dark matter in the Universe are similar. This requires that the B-balls survive thermalization and decay below the freeze-out temperature of the neutralino LSP, typically 1-10 GeV, It is shown that this can happen if the baryon asymmetry originates from a squark condensate along the d = 6 u(c)d(c)d(c) D-flat direction of the MSSM scalar potential. For this to work the reheating temperature after inflation must be no greater than 10(3-5) GeV.",
keywords = "supersymmetry, cosmology, dark matter, NONLOCAL ELECTROWEAK BARYOGENESIS, EARLY UNIVERSE, STANDARD MODEL, BIG-BANG, SUPERSYMMETRY, INFLATION, PHYSICS, REGIME",
author = "Kari Enqvist and John McDonald",
year = "1999",
month = jan,
day = "11",
doi = "10.1016/S0550-3213(98)00695-6",
language = "English",
volume = "538",
pages = "321--350",
journal = "Nuclear Physics B",
issn = "0550-3213",
publisher = "ELSEVIER SCIENCE BV",
number = "1-2",

}

RIS

TY - JOUR

T1 - B-ball baryogenesis and the baryon to dark matter ratio

AU - Enqvist, Kari

AU - McDonald, John

PY - 1999/1/11

Y1 - 1999/1/11

N2 - We demonstrate that B-ball decay in the MSSM can naturally solve the puzzle of why the densities of baryons and dark matter in the Universe are similar. This requires that the B-balls survive thermalization and decay below the freeze-out temperature of the neutralino LSP, typically 1-10 GeV, It is shown that this can happen if the baryon asymmetry originates from a squark condensate along the d = 6 u(c)d(c)d(c) D-flat direction of the MSSM scalar potential. For this to work the reheating temperature after inflation must be no greater than 10(3-5) GeV.

AB - We demonstrate that B-ball decay in the MSSM can naturally solve the puzzle of why the densities of baryons and dark matter in the Universe are similar. This requires that the B-balls survive thermalization and decay below the freeze-out temperature of the neutralino LSP, typically 1-10 GeV, It is shown that this can happen if the baryon asymmetry originates from a squark condensate along the d = 6 u(c)d(c)d(c) D-flat direction of the MSSM scalar potential. For this to work the reheating temperature after inflation must be no greater than 10(3-5) GeV.

KW - supersymmetry

KW - cosmology

KW - dark matter

KW - NONLOCAL ELECTROWEAK BARYOGENESIS

KW - EARLY UNIVERSE

KW - STANDARD MODEL

KW - BIG-BANG

KW - SUPERSYMMETRY

KW - INFLATION

KW - PHYSICS

KW - REGIME

U2 - 10.1016/S0550-3213(98)00695-6

DO - 10.1016/S0550-3213(98)00695-6

M3 - Journal article

VL - 538

SP - 321

EP - 350

JO - Nuclear Physics B

JF - Nuclear Physics B

SN - 0550-3213

IS - 1-2

ER -