Neutral and charged Higgsino as carriers of residual SUSY effects.
R.S. Pasechnik
Research Institute of Physics Rostov State University
Characteristic scales of the MSSM
The light gaugino (bino or wino) scenario -Standard MSSM variant:
--
--
The Lagangian of light Higgsino interactions withphotons and vector bosons is
+ +
0
W
Z
Z
00 0 00
W
It is unlikely since:
Obtained by fine tuning to the W-boson mass
It is contrary to well known experimental constraints
----
B
B
B
aW
aW
aW bW
cW
aW
lq,
lq,aWB,
1) Direct detection experiments – registration of nuclear recoils generated in the processes of elastic WIMP’s scattering off the matter nuclei
National Underground Scientific and EngineeringLaboratory (NUSEL), USA
Astrophysical methods:
The elastic scattering neutralino-nucleon cross section is spin-dependent only.
Local DM density
Separated neutralino flux Neutralino-xenon cross section
-- 1 ton of liquid xenon
Planned background reliable signal !
Detector
Estimation gives
Exotic effect of neutralino recharging on nucleons
The threshold is
2) Satellite experiments for detection of neutralinoannihilation products from the galactic halo.
- channels
- channel
Characteristic photon energies
-- are available for GLAST
Diffuse gamma ray spectrum
We obtained the maximal flux 10 2 1 110 sm s GeV
for NFW (Navarro, Frenk and White) clump density profile
This flux is comparable with maximal limit of GLAST sensitivity
Results
Results
