Neutrino forces and the Sommerfeld enhancement

The Sommerfeld enhancement plays an important role in dark matter (DM) physics, and can significantly enhance the annihilation cross section of non-relativistic DM particles. In this paper, we study the effect of neutrino forces, which are generated by the exchange of a pair of light neutrinos, on the Sommerfeld enhancement. We demonstrate that in certain cases, a neutrino force can cause a significant correction to the Sommerfeld enhancement. Models that can realise DM-neutrino interactions and sizeable Sommerfeld enhancement are also briefly discussed, together with the impacts on DM phenomenology of neutrino forces.

Note:

25 pages, 6 figures, 1 table

Neutrino Interactions
Particle Nature of Dark Matter
New Light Particles
Non-Standard Neutrino Properties
dark matter: nonrelativistic
cross section: annihilation
neutrino: effect
Sommerfeld enhancement

References(85)

Figures(6)

[1]

Über die Beugung und Bremsung der Elektronen

A. Sommerfeld

- Annalen Phys. 403 (1931) 3, 257-330
•
DOI:
- 10.1002/andp.19314030302

Explosive dark matter annihilation

Junji Hisano
(
- Tokyo U., ICRR
)
,
Shigeki Matsumoto
(
- Tokyo U., ICRR
)
,
Mihoko M. Nojiri
(
- Kyoto U., Yukawa Inst., Kyoto
)

- Phys.Rev.Lett. 92 (2004) 031303
•
e-Print:
- hep-ph/0307216
•
DOI:
- 10.1103/PhysRevLett.92.031303

Non-perturbative effect on dark matter annihilation and gamma ray signature from galactic center

Junji Hisano
(
- Tokyo U., ICRR
)
,
Shigeki. Matsumoto
(
- Tokyo U., ICRR
)
,
Mihoko M. Nojiri
(
- Kyoto U., Yukawa Inst., Kyoto
)
,
Osamu Saito
(
- Tokyo U., ICRR
)

- Phys.Rev.D 71 (2005) 063528
•
e-Print:
- hep-ph/0412403
•
DOI:
- 10.1103/PhysRevD.71.063528

Heavy wino-like neutralino dark matter annihilation into antiparticles

- Phys.Rev.D 73 (2006) 055004
•
e-Print:
- hep-ph/0511118
•
DOI:
- 10.1103/PhysRevD.73.055004

[5]

Non-perturbative effect on thermal relic abundance of dark matter

Junji Hisano
(
- Tokyo U., ICRR
)
,
Shigeki Matsumoto
(
- KEK, Tsukuba
)
,
Minoru Nagai
(
- Tokyo U., ICRR
)
,
Osamu Saito
(
- Tokyo U., ICRR and
- KEK, Tsukuba
)
,
Masato Senami
(
- Tokyo U., ICRR
)

- Phys.Lett.B 646 (2007) 34-38
•
e-Print:
- hep-ph/0610249
•
DOI:
- 10.1016/j.physletb.2007.01.012

[6]

Cosmology and Astrophysics of Minimal Dark Matter

Marco Cirelli
(
- Saclay
)
,
Alessandro Strumia
(
- Pisa U. and
- INFN, Pisa
)
,
Matteo Tamburini
(
- Pisa U.
)

- Nucl.Phys.B 787 (2007) 152-175
•
e-Print:
- 0706.4071
•
DOI:
- 10.1016/j.nuclphysb.2007.07.023

[7]

Heavy Dark Matter Through the Higgs Portal

John March-Russell
(
- Oxford U., Theor. Phys.
)
,
Stephen M. West
(
- Oxford U., Theor. Phys. and
- Oxford U.
)
,
Daniel Cumberbatch
(
- Oxford U.
)
,
Dan Hooper
(
- Fermilab
)

- JHEP 07 (2008) 058
•
e-Print:
- 0801.3440
•
DOI:
- 10.1088/1126-6708/2008/07/058

An anomalous positron abundance in cosmic rays with energies 1.5-100 GeV

PAMELA

Collaboration

•

Oscar Adriani
(
- Florence U. and
- INFN, Florence
)

et al.

- Nature 458 (2009) 607-609
•
e-Print:
- 0810.4995
•
DOI:
- 10.1038/nature07942

[9]

An excess of cosmic ray electrons at energies of 300-800 GeV

et al.

- Nature 456 (2008) 362-365
•
DOI:
- 10.1038/nature07477

Measurement of the Cosmic Ray e+ plus e- spectrum from 20 GeV to 1 TeV with the Fermi Large Area Telescope

Fermi-LAT

Collaboration

•

Aous A. Abdo
(
- Naval Research Lab, Wash., D.C.
)

et al.

- Phys.Rev.Lett. 102 (2009) 181101
•
e-Print:
- 0905.0025
•
DOI:
- 10.1103/PhysRevLett.102.181101

Minimal Dark Matter predictions and the PAMELA positron excess

Marco Cirelli
(
- Saclay, SPhT
)
,
Alessandro Strumia
(
- Pisa U. and
- INFN, Pisa
)

- PoS IDM2008 (2008) 089,
- Proceedings of IDM 2008: 7th International Workshop on the Identification of Dark Matter 2008, Stockholm, Sweden, 18-22 Aug 2008
•
e-Print:
- 0808.3867
•
DOI:
- 10.22323/1.064.0089