Dark matter and the baryon asymmetry - INSPIRE

DataBETA

Dark matter and the baryon asymmetry

Oct, 2005

Published in:

Phys.Rev.Lett. 96 (2006) 041302

e-Print:

hep-ph/0510079 [hep-ph]

DOI:

10.1103/PhysRevLett.96.041302

View in:

ADS Abstract Service

reference search176 citations

Citations per year

Abstract:

We present a mechanism to generate the baryon asymmetry of the Universe which preserves the net baryon number created in the Big Bang. If dark matter particles carry baryon number

B_X

, and

\sigma^{\rm annih}_{\bar{X}} < \sigma^{\rm annih}_{X}

, the

\bar{X}

's freeze out at a higher temperature and have a larger relic density than

X

's. If m_X \lsi 4.5 B_X GeV and the annihilation cross sections differ by

\mathcal{O}

(10%) or more, this type of scenario naturally explains the observed

\Omega_{DM} \approx 5 \Omega_b

. Two concrete examples are given, one of which can be excluded on observational grounds.

98.80.Cq
95.35.+d
cosmology
dark matter
dark matter: interaction
baryon: asymmetry
baryon number
H baryon
postulated particle

References(17)

Figures(0)

Violation of CP Invariance, C asymmetry, and baryon asymmetry of the universe

A.D. Sakharov
(
- Lebedev Inst.
)

- Pisma Zh.Eksp.Teor.Fiz. 5 (1967) 32-35,
- JETP Lett. 5 (1967) 24-27,
- Sov.Phys.Usp. 34 (1991) 5, 392-393,
- Usp.Fiz.Nauk 161 (1991) 5, 61-64
•
DOI:
- 10.1070/PU1991v034n05ABEH002497

A Single explanation for both the baryon and dark matter densities

David B. Kaplan
(
- UC, San Diego
)

- Phys.Rev.Lett. 68 (1992) 741-743
•
DOI:
- 10.1103/PhysRevLett.68.741

Baryogenesis in a Baryon Symmetric Universe

Scott Dodelson
(
- Harvard U.
)
,
Lawrence M. Widrow
(
- Harvard U. and
- Harvard-Smithsonian Ctr. Astrophys.
)

- Phys.Rev.D 42 (1990) 326-342
•
DOI:
- 10.1103/PhysRevD.42.326

Electroweak Fermion Number Violation and the Production of Stable Particles in the Early Universe

Stephen M. Barr
(
- Delaware U., Bartol Inst. and
- Santa Barbara, KITP
)
,
R.Sekhar Chivukula
(
- Boston U. and
- Santa Barbara, KITP
)
,
Edward Farhi
(
- MIT, LNS and
- Santa Barbara, KITP
)

- Phys.Lett.B 241 (1990) 387-391
•
DOI:
- 10.1016/0370-2693(90)91661-T

Baryon asymmetry, dark matter and quantum chromodynamics

- Phys.Rev.D 71 (2005) 023519
•
e-Print:
- hep-ph/0309086
•
DOI:
- 10.1103/PhysRevD.71.023519

First year Wilkinson Microwave Anisotropy Probe (WMAP) observations: Determination of cosmological parameters

WMAP

Collaboration

•

D.N. Spergel

et al.

- Astrophys.J.Suppl. 148 (2003) 175-194
•
e-Print:
- astro-ph/0302209
•
DOI:
- 10.1086/377226

Non-binding of flavor-singlet hadrons to nuclei

Glennys R. Farrar
(
- New York U.
)
,
Gabrijela Zaharijas
(
- New York U.
)

- Phys.Lett.B 559 (2003) 223-228,
- Phys.Lett.B 575 (2003) 358-358 (erratum)
•
e-Print:
- hep-ph/0302190
•
DOI:
- 10.1016/S0370-2693(03)00331-9

Dark matter and the baryon asymmetry of the universe

Glennys R. Farrar
(
- New York U., CCPP and
- New York U.
)
,
Gabrijela Zaharijas
(
- New York U., CCPP and
- New York U.
)

e-Print:
- hep-ph/0406281

Anomalous Dimensions of Three Quark Operators

Michael E. Peskin
(
- Harvard U.
)

- Phys.Lett.B 88 (1979) 128-132
•
DOI:
- 10.1016/0370-2693(79)90129-1

Gauge and Global Symmetries at High Temperature

Steven Weinberg
(
- Harvard U.
)

- Phys.Rev.D 9 (1974) 3357-3378
•
DOI:
- 10.1103/PhysRevD.9.3357

Soft CP Violation at High Temperature

- Phys.Rev.Lett. 42 (1979) 1651
•
DOI:
- 10.1103/PhysRevLett.42.1651

Hybrid inflation

Andrei D. Linde
(
- Stanford U., Phys. Dept.
)

- Phys.Rev.D 49 (1994) 748-754
•
e-Print:
- astro-ph/9307002
•
DOI:
- 10.1103/PhysRevD.49.748

A stable H dibaryon: Dark matter candidate within QCD?

G.R. Farrar
(
- New York U.
)

- Int.J.Theor.Phys. 42 (2003) 1211-1218,
- ,
•
DOI:
- 10.1023/A:1025702431127

A Window in the dark matter exclusion limits

Gabrijela Zaharijas
(
- New York U.
)
,
Glennys R. Farrar
(
- New York U.
)

- Phys.Rev.D 72 (2005) 083502
•
e-Print:
- astro-ph/0406531
•
DOI:
- 10.1103/PhysRevD.72.083502

- Icarus 84 12

WIMP diffusion in the solar system including solar depletion and its effect on earth capture rates

Johan Lundberg
(
- Uppsala U.
)
,
Joakim Edsjo
(
- Stockholm U.
)

- Phys.Rev.D 69 (2004) 123505
•
e-Print:
- astro-ph/0401113
•
DOI:
- 10.1103/PhysRevD.69.123505

'Atmospheric neutrino' and 'proton decay' data exclude some new dark matter scenarios

Itzhak Goldman
(
- Tel Aviv U.
)
,
Shmuel Nussinov
(
- Tel Aviv U. and
- Ohio State U.
)

e-Print:
- hep-ph/0406259