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Astronomy Tea Talks at Caltech

Mondays, Robinson 106
Tea:  4.00pm
Talk: 4.15pm

Organised by:

2007 - 2008 season:
12 May 2008 Annika Peter (Caltech)

"Dynamics of WIMPs in the Solar System"

Semi-analytic treatments of weakly interacting massive particle (WIMP) orbits in the solar system (e.g., Damour & Krauss
1999, Gould 1991, Lundberg & Edsjo 2004) suggest that the WIMPs bound to solar system may enhance the direct detection rate
relative to that of the unbound population by up to a factor of order unity, as well as boost the flux of neutrinos from WIMP
annihilation in the Earth up to two orders of magnitude. Given these intriguing implications, it is worthwhile to check the
semi-analytic approximations with numerical integrations of particle orbits in the solar system. We present the results of a
suite of numerical experiments to explore the size of the bound WIMP population as a function of WIMP mass and the elastic
scattering cross section with baryonic matter, and show the resulting signals in direct detection experiments and in neutrino
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Last modified on 20th Jul 2011 by Johan Richard.  

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