Speaker
Dr
Stefano Scopel
(Korea Institute of Advanced Study, Seoul)
Description
We discuss the lower bound to the lightest Higgs boson H_1 in the minimal
supersymmetric extension of the standard model with explicit CP violation, and the
phenomenology of the lightest relic neutralino in the same scenario. We find that the
combination of present experimental constraints favours a region of the parameter
space where the mass of H_1 is in the range 7 GeV < M_{H_1} < 10 GeV, while 3 <
tan(beta) < 5. Assuming a departure from the usual GUT relation among gaugino masses
(|M_1| << |M_2|), we find that through resonant annihilation to H_1 a neutralino as
light as 2.9 GeV can be a viable dark matter candidate. We call this the CPX light
neutralino scenario, and discuss its prospect of detection both from direct and
indirect dark matter searches.
Authors
Dr
Jae Sik Lee
(Center of Theoretical Physics, School of Physics, Seoul National University, Seoul)
Dr
Stefano Scopel
(Korea Institute of Advanced Study, Seoul)
