Direct detection of dark matter in SU(5)xU(1) supergravity

Details Direct detection of dark matter in SU(5)xU(1) supergravity Direct detection of dark matter in SU(5)xU(1) supergravity

1994-12-05

arxiv.org/abs/hep-ph/9412237v1

Phys.Lett. B348 (1995) 105-110

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, Latex, 4 figures included (uuencoded)

Scientific paper

10.1016/0370-2693(95)00096-4

We compute the scattering rates for the lightest neutralino $\chi^0_1$ in the forthcoming germanium $(^{73}{\rm Ge}+^{76}{\rm Ge})$ detector and a proposed lead detector $(^{207}{\rm Pb})$, within the framework of $SU(5)\times U(1)$ supergravity. We find that in only a small portion ($\lsim10\%$) of the parameter spaces of this class of models, are the rates in the germanium detector above the expected initial experimental sensitivity of 0.1 events/kg/day. However, a much larger portion ($\lsim40\%$) of the parameter spaces could be probed with an improved background rejection capability (0.01 events/kg/day) and/or a more sensitive detector $(^{207}{\rm Pb})$.

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