PT Journal
AU Barenboim, G
   Panotopoulos, G
TI Direct neutralino searches in the NMSSM with gravitino LSP in the degenerate scenario
SO Journal of High Energy Physics
JI J. High Energy Phys.
PY 2011
BP 027
EP 16pp
VL 08
IS 8
DI 10.1007/JHEP08(2011)027
LA English
DE Beyond Standard Model; Cosmology of Theories beyond the SM; Supersymmetric Standard Model
AB In the present work a two-component dark matter model is studied adopting the degenerate scenario in the R-parity conserving NMSSM. The gravitino LSP and the neutralino NLSP are extremely degenerate in mass, avoiding the BBN bounds and obtaining a high reheating temperature for thermal leptogenesis. In this model both gravitino (absolutely stable) and neutralino (quasi-stable) contribute to dark matter, and direct detection searches for neutralino are discussed. Points that survive all the constraints correspond to a singlino-like neutralino.
ER