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Symmetry non-restoration via order 10(-10) B and L asymmetries

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Symmetry non-restoration via order 10(-10) B and L asymmetries. / McDonald, John.
In: Physics Letters B, Vol. 463, No. 2-4, 30.09.1999, p. 225-229.

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

Harvard

McDonald, J 1999, 'Symmetry non-restoration via order 10(-10) B and L asymmetries', Physics Letters B, vol. 463, no. 2-4, pp. 225-229. https://doi.org/10.1016/S0370-2693(99)00992-2

APA

McDonald, J. (1999). Symmetry non-restoration via order 10(-10) B and L asymmetries. Physics Letters B, 463(2-4), 225-229. https://doi.org/10.1016/S0370-2693(99)00992-2

Vancouver

McDonald J. Symmetry non-restoration via order 10(-10) B and L asymmetries. Physics Letters B. 1999 Sept 30;463(2-4):225-229. doi: 10.1016/S0370-2693(99)00992-2

Author

McDonald, John. / Symmetry non-restoration via order 10(-10) B and L asymmetries. In: Physics Letters B. 1999 ; Vol. 463, No. 2-4. pp. 225-229.

Bibtex

@article{2db8ed7ee8e0419f9afda164e97ca21b,
title = "Symmetry non-restoration via order 10(-10) B and L asymmetries",
abstract = "It has been observed that a large lepton asymmetry, n(L)/s approximate to 0.1, can prevent the Higgs expectation value from going to zero at high temperature, resulting in the non-restoration of the SU(2) x U(1) gauge symmetry and other symmetries. This could allow for the elimination of domain walls and other dangerous topological defects. Here we show that if the reheating temperature after inflation, T-R is sufficiently low then symmetry non-restoration will occur with an asymmetry of the order of the observed baryon asymmetry, n(B)/s approximate to 10(-10). For this to occur T-R less than or similar to 1 GeV is necessary. Remarkably, this happens to be the reheating temperature expected in Affleck-Dine baryogenesis along a d = 6 flat direction of the MSSM. As an example, we show that this can neatly solve the Z(3), domain wall problem of the NMSSM. ",
keywords = "SUPERSYMMETRIC STANDARD MODEL, DOMAIN-WALL PROBLEM, HIGH-TEMPERATURE, ENTROPY CRISIS, GAUGE-THEORIES, SUPERGRAVITY, INFLATION, BARYOGENESIS, UNIVERSE, BREAKING",
author = "John McDonald",
year = "1999",
month = sep,
day = "30",
doi = "10.1016/S0370-2693(99)00992-2",
language = "English",
volume = "463",
pages = "225--229",
journal = "Physics Letters B",
issn = "0370-2693",
publisher = "ELSEVIER SCIENCE BV",
number = "2-4",

}

RIS

TY - JOUR

T1 - Symmetry non-restoration via order 10(-10) B and L asymmetries

AU - McDonald, John

PY - 1999/9/30

Y1 - 1999/9/30

N2 - It has been observed that a large lepton asymmetry, n(L)/s approximate to 0.1, can prevent the Higgs expectation value from going to zero at high temperature, resulting in the non-restoration of the SU(2) x U(1) gauge symmetry and other symmetries. This could allow for the elimination of domain walls and other dangerous topological defects. Here we show that if the reheating temperature after inflation, T-R is sufficiently low then symmetry non-restoration will occur with an asymmetry of the order of the observed baryon asymmetry, n(B)/s approximate to 10(-10). For this to occur T-R less than or similar to 1 GeV is necessary. Remarkably, this happens to be the reheating temperature expected in Affleck-Dine baryogenesis along a d = 6 flat direction of the MSSM. As an example, we show that this can neatly solve the Z(3), domain wall problem of the NMSSM. 

AB - It has been observed that a large lepton asymmetry, n(L)/s approximate to 0.1, can prevent the Higgs expectation value from going to zero at high temperature, resulting in the non-restoration of the SU(2) x U(1) gauge symmetry and other symmetries. This could allow for the elimination of domain walls and other dangerous topological defects. Here we show that if the reheating temperature after inflation, T-R is sufficiently low then symmetry non-restoration will occur with an asymmetry of the order of the observed baryon asymmetry, n(B)/s approximate to 10(-10). For this to occur T-R less than or similar to 1 GeV is necessary. Remarkably, this happens to be the reheating temperature expected in Affleck-Dine baryogenesis along a d = 6 flat direction of the MSSM. As an example, we show that this can neatly solve the Z(3), domain wall problem of the NMSSM. 

KW - SUPERSYMMETRIC STANDARD MODEL

KW - DOMAIN-WALL PROBLEM

KW - HIGH-TEMPERATURE

KW - ENTROPY CRISIS

KW - GAUGE-THEORIES

KW - SUPERGRAVITY

KW - INFLATION

KW - BARYOGENESIS

KW - UNIVERSE

KW - BREAKING

U2 - 10.1016/S0370-2693(99)00992-2

DO - 10.1016/S0370-2693(99)00992-2

M3 - Journal article

VL - 463

SP - 225

EP - 229

JO - Physics Letters B

JF - Physics Letters B

SN - 0370-2693

IS - 2-4

ER -