Naturally Large Cosmological Neutrino Asymmetries in the Minimal Supersymmetric Standard Model

Physics

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https://doi.org/10.1103/PhysRevLett.84.4798
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Naturally Large Cosmological Neutrino Asymmetries in the Minimal Supersymmetric Standard Model. / McDonald, John.
In: Physical review letters, Vol. 84, No. 21, 22.05.2000, p. 4798-4801.

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

Bibtex

@article{05f6514e2ac3473dbdf4aa82b4d4b0ea,

title = "Naturally Large Cosmological Neutrino Asymmetries in the Minimal Supersymmetric Standard Model",

abstract = "A large neutrino asymmetry could have significant observable consequences for nucleosynthesis and the cosmic microwave background. If the baryon asymmetry originates via the Affleck-Dine mechanism along a d = 4 flat direction of the scalar potential in the minimal supersymmetric standard model and if the lepton asymmetry originates via Affleck-Dine leptogenesis along a d = 6 direction, corresponding to the lowest dimension directions conserving R parity, then the ratio nL/nB is naturally in the range 108–109. As a result, a potentially observable neutrino asymmetry is correlated with a baryon asymmetry of the order of 10-10.",

author = "John McDonald",

year = "2000",

month = may,

day = "22",

doi = "10.1103/PhysRevLett.84.4798",

language = "English",

volume = "84",

pages = "4798--4801",

journal = "Physical review letters",

issn = "1079-7114",

publisher = "American Physical Society",

number = "21",

}

RIS

TY - JOUR

T1 - Naturally Large Cosmological Neutrino Asymmetries in the Minimal Supersymmetric Standard Model

AU - McDonald, John

PY - 2000/5/22

Y1 - 2000/5/22

N2 - A large neutrino asymmetry could have significant observable consequences for nucleosynthesis and the cosmic microwave background. If the baryon asymmetry originates via the Affleck-Dine mechanism along a d = 4 flat direction of the scalar potential in the minimal supersymmetric standard model and if the lepton asymmetry originates via Affleck-Dine leptogenesis along a d = 6 direction, corresponding to the lowest dimension directions conserving R parity, then the ratio nL/nB is naturally in the range 108–109. As a result, a potentially observable neutrino asymmetry is correlated with a baryon asymmetry of the order of 10-10.

AB - A large neutrino asymmetry could have significant observable consequences for nucleosynthesis and the cosmic microwave background. If the baryon asymmetry originates via the Affleck-Dine mechanism along a d = 4 flat direction of the scalar potential in the minimal supersymmetric standard model and if the lepton asymmetry originates via Affleck-Dine leptogenesis along a d = 6 direction, corresponding to the lowest dimension directions conserving R parity, then the ratio nL/nB is naturally in the range 108–109. As a result, a potentially observable neutrino asymmetry is correlated with a baryon asymmetry of the order of 10-10.

U2 - 10.1103/PhysRevLett.84.4798

DO - 10.1103/PhysRevLett.84.4798

M3 - Journal article

VL - 84

SP - 4798

EP - 4801

JO - Physical review letters

JF - Physical review letters

SN - 1079-7114

IS - 21

ER -

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