Phase space distribution of halo particles and detection of WIMPS

Details Phase space distribution of halo particles and detection of WIMPS Phase space distribution of halo particles and detection of WIMPS

Apr 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991aipc..222..463r&link_type=abstract

In: After the first three minutes; Proceedings of the 1st Astrophysics Workshop, Univ. of Maryland, College Park, Oct. 15-17, 19

Astronomy and Astrophysics

Astrophysics

Galactic Halos, Milky Way Galaxy, Particle Mass, Relativity, Weak Interactions (Field Theory), Baryons, Density Distribution, Galactic Mass, Stellar Mass

Scientific paper

We calculate the velocity distribution of halo particles using realistic models for the density profiles of the Galactic disk, spheroid, and halo components. We get the resulting velocity distribution, which is different from the Maxwellian distribution of isothermal halo. We investigate the consequences concerning the time averaged count rate and the amplitude of the annual modulation in WIMPS detection experiments. Compared to the previous estimate based on the Maxwellian distribution, the time averaged count rate is up to 40 percent larger. On the other hand, the amplitude of the annual modulation is up to a factor of two larger.

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