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Cosmic Ray Anomalies and Dark Matter Annihilation to Muons via a Higgs Portal Hidden Sector

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Cosmic Ray Anomalies and Dark Matter Annihilation to Muons via a Higgs Portal Hidden Sector. / Kohri, Kazunori; McDonald, John; Sahu, Narendra.

In: Physical Review D – Particles and Fields, Vol. 81, No. 2, 023530, 28.01.2010.

Research output: Contribution to journalJournal article

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Kohri, Kazunori ; McDonald, John ; Sahu, Narendra. / Cosmic Ray Anomalies and Dark Matter Annihilation to Muons via a Higgs Portal Hidden Sector. In: Physical Review D – Particles and Fields. 2010 ; Vol. 81, No. 2.

Bibtex

@article{fe8d291ad82b4f30a482130a5715c191,
title = "Cosmic Ray Anomalies and Dark Matter Annihilation to Muons via a Higgs Portal Hidden Sector",
abstract = "Annihilating dark matter (DM) models based on a scalar hidden sector with Higgs portal-like couplings to the Standard Model are considered as a possible explanation for recently observed cosmic ray excesses. Two versions of the model are studied, one with non-thermal DM as the origin of the boost factor and one with Sommerfeld enhancement. In the case of non-thermal DM, four hidden sector scalars which transform under a U(1)_{X} symmetry are added. The heaviest scalars decouple and later decay to DM scalars, so providing the boost factor necessary to explain the present DM annihilation rate. The mass of the annihilating scalars is limited to",
author = "Kazunori Kohri and John McDonald and Narendra Sahu",
note = "24 pages, 4 figures. Expanded discussion, conclusions unchanged. Version to be published in Physical Review D",
year = "2010",
month = jan
day = "28",
doi = "10.1103/PhysRevD.81.023530",
language = "English",
volume = "81",
journal = "Physical Review D",
issn = "1550-7998",
publisher = "American Physical Society",
number = "2",

}

RIS

TY - JOUR

T1 - Cosmic Ray Anomalies and Dark Matter Annihilation to Muons via a Higgs Portal Hidden Sector

AU - Kohri, Kazunori

AU - McDonald, John

AU - Sahu, Narendra

N1 - 24 pages, 4 figures. Expanded discussion, conclusions unchanged. Version to be published in Physical Review D

PY - 2010/1/28

Y1 - 2010/1/28

N2 - Annihilating dark matter (DM) models based on a scalar hidden sector with Higgs portal-like couplings to the Standard Model are considered as a possible explanation for recently observed cosmic ray excesses. Two versions of the model are studied, one with non-thermal DM as the origin of the boost factor and one with Sommerfeld enhancement. In the case of non-thermal DM, four hidden sector scalars which transform under a U(1)_{X} symmetry are added. The heaviest scalars decouple and later decay to DM scalars, so providing the boost factor necessary to explain the present DM annihilation rate. The mass of the annihilating scalars is limited to

AB - Annihilating dark matter (DM) models based on a scalar hidden sector with Higgs portal-like couplings to the Standard Model are considered as a possible explanation for recently observed cosmic ray excesses. Two versions of the model are studied, one with non-thermal DM as the origin of the boost factor and one with Sommerfeld enhancement. In the case of non-thermal DM, four hidden sector scalars which transform under a U(1)_{X} symmetry are added. The heaviest scalars decouple and later decay to DM scalars, so providing the boost factor necessary to explain the present DM annihilation rate. The mass of the annihilating scalars is limited to

U2 - 10.1103/PhysRevD.81.023530

DO - 10.1103/PhysRevD.81.023530

M3 - Journal article

VL - 81

JO - Physical Review D

JF - Physical Review D

SN - 1550-7998

IS - 2

M1 - 023530

ER -