Speaker
Prof.
Myriam Mondragon
(Instituto de Fisica, UNAM, Mexico)
Description
We derive an expression for the entropy of a present dark matter halo
described by the Navarro-Frenk-White model and a core. The comparison
of this entropy with the one of the halo at the freeze-out era allows
us to constrain the parameter space in mSUGRA models,
when used with the WMAP observations.
Moreover, by joning these results with the ones
obtained from the usual abundance criteria, we are able to clearly
descriminate validity regions among the tan beta values of the
mSUGRA model, by demanding both criteria to be consistent with the
2 sigma bounds of the WMAP observations for the relic density:
0.0945<Omega_CDM h^2<0.1287. As a first result, we found that for
A_0=0, and sgn mu=+, small values of tan beta are not favored;
only for tan beta ~ 50 are both criteria significantly
consistent. We go further and derive the spectra for the rest of the
mSUGRA parameters consistent with the cosmological considerations.
Author
Prof.
Myriam Mondragon
(Instituto de Fisica, UNAM, Mexico)
Co-authors
Prof.
Dario Nunez
(Instituto de Ciencias Nucleares, UNAM, Mexico)
Mr
Jesus Zavala
(Instituto de Ciencias Nucleares, UNAM, Mexico)
Prof.
Luis Cabral
(Dept. de Posgrado, CIIDET, Mexico)
Prof.
Lukas Nellen
(Instituto de Ciencias Nucleares, UNAM, Mexico)
Prof.
Roberto Sussman
(Instituto de Ciencias Nucleares, UNAM, Mexico)
