Predictions for the direct detection of neutralino dark matter in the NMSSM
- Institute for Particle Physics Phenomenology, University of Durham, DH1 3LE (United Kingdom)
The direct detection of neutralino dark matter is analysed in the framework of the Next-to-Minimal Supersymmetric Standard Model. After performing a detailed analysis of the parameter space, taking into account all the available constraints from LEP, the neutralino-nucleon cross section is computed. Sizable values for the detection cross section, within the reach of dark matter detectors, are attainable in this scenario, due to the exchange of very light Higgses with m{sub h1{sup 0}} < or approx. 70 GeV. These have a significant singlet composition, thus escaping detection and being in agreement with accelerator data. The lightest neutralino exhibits a large singlino-Higgsino composition, and a mass in the range 50 < or approx. m{sub {chi}}{sub -tilde1}{sup 0}} < or approx. 100 GeV.
- OSTI ID:
- 20729205
- Journal Information:
- AIP Conference Proceedings, Vol. 805, Issue 1; Conference: PASCOS 2005: 11. international symposium on particles, strings, and cosmology, Gyeongju (Korea, Republic of), 30 May - 4 Jun 2005; Other Information: DOI: 10.1063/1.2149744; (c) 2005 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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