Presentation 1 : Oral
Detecting neutralino annihilation photon from DRACO with Celeste?
Edmond Giraud, Julien Lavalle
The objective of this project is to probe a fraction of the supersymmetric parameter
space by assuming that the halo of the dSph DRACO is made of neutralinos. DRACO would
be one of the numerous clumps predicted by CDM simulations that would not be disrupted
by the galactic tidal field. We consider various mass models of DRACO consistent with
the data and CDM simulations, and run the codes SUSPECT and DarkSUSY to derive high
energy photon fluxes. The code SUSPECT starts from the 5 MSugra free parameters at the
GUT scale and evolves the SUSY Lagrangian to the EW scale, and the code DarkSUSY
calculates masses, couplings, branching ratios at the EW scale, checks experimental and
cosmological constraints, and derives the gamma fluxes. Some fraction of the neutralino
parameter space maybe within reach of CELESTE under favourable astrophysical conditions.