Indirect dark matter detection experiments · PDF fileI.V. Moskalenko, A.W. Strong, Production...
If you can't read please download the document
Transcript of Indirect dark matter detection experiments · PDF fileI.V. Moskalenko, A.W. Strong, Production...
Indirect dark matter detection
experiments
Mathias Garny
May 5, 2009
Gaisser,Particle Physics and Cosmic Rays,Cambridge Univ. Press (UK, 1990)
I.V. Moskalenko, A.W. Strong,
Production and propagation of cosmic ray positrons
and electrons,
arXiv:astro-ph/9710124
Antiproton/Proton ratio, PAMELA collaboration,
arXiv:0810.4994
kinetic energy (GeV)1 10 210
/pp
0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
0.4-310
=500MV) Donato 2001 (D, =500MV) Simon 1998 (LBM,
=550MV) Ptuskin 2006 (PD, PAMELA
kinetic energy (GeV)1 10 210
/pp
-410
-310
IMAX 1992 BESS 2000 HEAT-pbar 2000 CAPRICE 1998 CAPRICE 1994 BESS-polar 2004
MASS 1991 BESS 1995-97 BESS 1999 PAMELA
Positron fraction, PAMELA collaboration,
arXiv:0810.4995
Energy (GeV)0.1 1 10 100
))
-(e
)+
+(e
) / (
+(e
Po
sitr
on
fra
ctio
n
0.01
0.02
0.1
0.2
0.3
0.4
Muller & Tang 1987
MASS 1989
TS93
HEAT94+95
CAPRICE94
AMS98
HEAT00
Clem & Evenson 2007
PAMELA
Energy (GeV)1 10 100
))
-(e
)+
+(e
) / (
+(e
Po
sitr
on
fra
ctio
n
0.01
0.02
0.1
0.2
0.3
PAMELA
Solar modulation, Grieder,
Cosmic Rays At Earth, Elsevier Science 2001
[taken from C. Pioch, Diploma Thesis (TUM), 2008]
BESS,
arXiv:astro-ph/0109007
10-6
10-5
10-4
10-1
1 10(GeV)Kinetic Energy
P/P
rat
io Bieber et al,Drift model
10, (+)70, (+)70, ()
BESS(97)BESS(99)BESS(00)
Fisk,Sphericallysymmetric model
99= 648 MV (lower)00=1344 MV (upper)
The p/p flux ratios measured by BESS in 1999 and 2000 with the pre-
vious data in 1997. The curves are calculations of the ratio at various
solar activity
ATIC,
Nature 456:362-365,2008
FERMI,
arXiv:0905.0025
HESS,
arXiv:0811.3894,arXiv:0905.0105
Literature:
Particle Physics and Cosmic RaysThomas GaisserCambridge Univ. Press (UK, 1990)
Production and propagation of cosmic ray positrons and electronsI.V. Moskalenko, A.W. StrongarXiv:astro-ph/9710124
Positron propagation and fluxes from neutralino annihilation in thehalo.Baltz, Joakim EdsjoarXiv:astro-ph/9808243
PAMELA: A Payload for Antimatter Matter Exploration and Light-nuclei Astrophysics.PAMELA collaborationarXiv:astro-ph/0608697
A new measurement of the antiproton-to-proton flux ratio up to100 GeV in the cosmic radiationPAMELA collaborationarXiv:0810.4994
An anomalous positron abundance in cosmic rays with energies1.5.100 GeV.PAMELA collaborationarXiv:0810.4995
Cosmic Rays At EarthGriederElsevier Science 2001
Measurements of cosmic ray low-energy anti-proton and protonspectra in a transient period of the solar field reversalBESS collaborationarXiv:astro-ph/0109007
An excess of cosmic ray electrons at energies of 300.800 GeV.ATIC collaborationNature 456:362-365,2008
Measurement of the Cosmic Ray e+ plus e- spectrum from 20 GeVto 1 TeV with the Fermi Large Area Telescope.FERMI collaborationarXiv:0905.0025
The energy spectrum of cosmic-ray electrons at TeV energiesHESS collaborationarXiv:0811.3894
Probing the ATIC peak in the cosmic-ray electron spectrum withH.E.S.S.HESS collaborationarXiv:0905.0105
