Neutral and charged Higgsino as carriers of residual SUSY effects.
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Neutral and charged Higgsino as carriers of residual SUSY effects.
R.S. Pasechnik
Research Institute of Physics Rostov State University
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Characteristic scales of the MSSM
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The light gaugino (bino or wino) scenario -Standard MSSM variant:
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The Lagangian of light Higgsino interactions withphotons and vector bosons is
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0
W
Z
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00 0 00
W
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It is unlikely since:
Obtained by fine tuning to the W-boson mass
It is contrary to well known experimental constraints
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B
B
B
aW
aW
aW bW
cW
aW
lq,
lq,aWB,
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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:
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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
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Exotic effect of neutralino recharging on nucleons
The threshold is
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2) Satellite experiments for detection of neutralinoannihilation products from the galactic halo.
- channels
- channel
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Characteristic photon energies
-- are available for GLAST
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Diffuse gamma ray spectrum
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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
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Results
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Results