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Enhanced Dark Matter Annihilation Rate for Positron and Electron Excesses from Q-ball Decay

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

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Enhanced Dark Matter Annihilation Rate for Positron and Electron Excesses from Q-ball Decay. / McDonald, John.
In: Physical review letters, Vol. 103, No. 15, 151301, 06.10.2009.

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

Harvard

McDonald, J 2009, 'Enhanced Dark Matter Annihilation Rate for Positron and Electron Excesses from Q-ball Decay', Physical review letters, vol. 103, no. 15, 151301. https://doi.org/10.1103/PhysRevLett.103.151301

APA

McDonald, J. (2009). Enhanced Dark Matter Annihilation Rate for Positron and Electron Excesses from Q-ball Decay. Physical review letters, 103(15), Article 151301. https://doi.org/10.1103/PhysRevLett.103.151301

Vancouver

McDonald J. Enhanced Dark Matter Annihilation Rate for Positron and Electron Excesses from Q-ball Decay. Physical review letters. 2009 Oct 6;103(15):151301. doi: 10.1103/PhysRevLett.103.151301

Author

McDonald, John. / Enhanced Dark Matter Annihilation Rate for Positron and Electron Excesses from Q-ball Decay. In: Physical review letters. 2009 ; Vol. 103, No. 15.

Bibtex

@article{545496070b4e4e33bfe3b2fac42404aa,
title = "Enhanced Dark Matter Annihilation Rate for Positron and Electron Excesses from Q-ball Decay",
abstract = "We show that Q-ball decay in Affleck-Dine baryogenesis models can account for dark matter when the annihilation cross-section is sufficiently enhanced to explain the positron and electron excesses observed by PAMELA, ATIC and PPB-BETS. For Affleck-Dine baryogenesis along a d = 6 flat direction, the reheating temperature is approximately 30 GeV and the Q-ball decay temperature is in the range 10-100 MeV. The LSPs produced by Q-ball decay annihilate down to the observed dark matter density if the cross-section is enhanced by a factor ~ 10^3 relative to the thermal relic cross-section.",
author = "John McDonald",
note = "4 pages, version to be published in Physical Review Letters",
year = "2009",
month = oct,
day = "6",
doi = "10.1103/PhysRevLett.103.151301",
language = "English",
volume = "103",
journal = "Physical review letters",
issn = "1079-7114",
publisher = "American Physical Society",
number = "15",

}

RIS

TY - JOUR

T1 - Enhanced Dark Matter Annihilation Rate for Positron and Electron Excesses from Q-ball Decay

AU - McDonald, John

N1 - 4 pages, version to be published in Physical Review Letters

PY - 2009/10/6

Y1 - 2009/10/6

N2 - We show that Q-ball decay in Affleck-Dine baryogenesis models can account for dark matter when the annihilation cross-section is sufficiently enhanced to explain the positron and electron excesses observed by PAMELA, ATIC and PPB-BETS. For Affleck-Dine baryogenesis along a d = 6 flat direction, the reheating temperature is approximately 30 GeV and the Q-ball decay temperature is in the range 10-100 MeV. The LSPs produced by Q-ball decay annihilate down to the observed dark matter density if the cross-section is enhanced by a factor ~ 10^3 relative to the thermal relic cross-section.

AB - We show that Q-ball decay in Affleck-Dine baryogenesis models can account for dark matter when the annihilation cross-section is sufficiently enhanced to explain the positron and electron excesses observed by PAMELA, ATIC and PPB-BETS. For Affleck-Dine baryogenesis along a d = 6 flat direction, the reheating temperature is approximately 30 GeV and the Q-ball decay temperature is in the range 10-100 MeV. The LSPs produced by Q-ball decay annihilate down to the observed dark matter density if the cross-section is enhanced by a factor ~ 10^3 relative to the thermal relic cross-section.

UR - http://www.scopus.com/inward/record.url?scp=70349916273&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.103.151301

DO - 10.1103/PhysRevLett.103.151301

M3 - Journal article

VL - 103

JO - Physical review letters

JF - Physical review letters

SN - 1079-7114

IS - 15

M1 - 151301

ER -