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