David G. Cerdeño et al JHEP12(2004)048 doi:10.1088/1126-6708/2004/12/048
Theoretical predictions for the direct detection of neutralino dark matter in the NMSSM
David G. Cerdeño1, Cyril Hugonie2, Daniel E. López-Fogliani3, Carlos Muñoz3 and Ana M. Teixeira3
Show affiliationsWe analyse the direct detection of neutralino dark matter 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 LEPII, we compute the neutralino-nucleon cross section, and compare the results with the sensitivity of detectors. We find that sizable values for the detection cross section, within the reach of dark matter detectors, are attainable in this framework. For example, neutralino-proton cross sections compatible with the sensitivity of present experiments can be obtained due to the exchange of very light Higgses with mh10
70 GeV. Such Higgses have a significant singlet composition, thus escaping detection and being in agreement with accelerator data. The lightest neutralino in these cases exhibits a large singlino-Higgsino composition, and a mass in the range 50m
10100 GeV.
- Keywords
- PACS
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12.60.Jv Supersymmetric models
- Subjects
- Dates
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Issue 12 (December 2004)
Received 28 October 2004, accepted for publication 18 December 2004
Published 17 January 2005
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Theoretical predictions for the direct detection of neutralino dark matter in the NMSSM
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