Neutrino Masses, Leptogenesis and Decaying Dark Matter - INSPIRE

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Neutrino Masses, Leptogenesis and Decaying Dark Matter

Jun, 2009

11 pages

Published in:

JCAP 10 (2009) 001

e-Print:

0906.1646 [hep-ph]

DOI:

10.1088/1475-7516/2009/10/001

View in:

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Abstract: (arXiv)

We study a simple extension of the standard model to simultaneously explain neutrino masses, dark matter and the matter-antimatter asymmetry of the Universe. In our model, the baryon asymmetry is achieved by the leptogenesis mechanism, while the decaying dark matter with the lifetime of O(10^26 s) provides a natural solution to the electron and positron excesses in Fermi and PAMELA satellite experiments. In particular, we emphasize that our model is sensitive to the structure at the endpoint around 1 TeV of the Fermi data. In addition, some of new particles proposed in the model are within the reach at the near future colliders, such as the Large Hadron Collider.

neutrino: mass
baryon: asymmetry
dark matter: decay
dark matter: lifetime
leptogenesis
positron: cosmic radiation
matter: antimatter
matter: asymmetry
antimatter: asymmetry
PAMELA

References(81)

Figures(7)

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et al.

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Koichi Hamaguchi
(
- Tokyo U. and
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)
,
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(
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)
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Satoshi Shirai
(
- Tokyo U.
)
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T.T. Yanagida
(
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)

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(
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(
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(
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)
,
Alessandro Strumia
(
- Pisa U. and
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)

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Asimina Arvanitaki
(
- UC, Berkeley and
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)
,
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(
- Stanford U., Phys. Dept.
)
,
Sergei Dubovsky
(
- Stanford U., Phys. Dept. and
- Moscow, INR
)
,
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)
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Koichi Hamaguchi
(
- Tokyo U., IPMU and
- Tokyo U.
)
,
Satoshi Shirai
(
- Tokyo U.
)
,
T.T. Yanagida
(
- Tokyo U., IPMU and
- Tokyo U.
)

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(
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Shao-Long Chen
(
- Maryland U.
)
,
Rabindra N. Mohapatra
(
- Maryland U.
)
,
Shmuel Nussinov
(
- Tel Aviv U.
)
,
Yue Zhang
(
- Peking U. and
- Maryland U.
)

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Decaying Dark Matter as a Probe of Unification and TeV Spectroscopy

Asimina Arvanitaki
(
- UC, Berkeley and
- LBL, Berkeley
)
,
Savas Dimopoulos
(
- Stanford U., Phys. Dept.
)
,
Sergei Dubovsky
(
- Stanford U., Phys. Dept. and
- Moscow, INR
)
,
Peter W. Graham
(
- Stanford U., Phys. Dept.
)
,
Roni Harnik
(
- Stanford U., Phys. Dept.
)

et al.

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e-Print:
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•
DOI:
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