Dr
Chiara Arina
(ULB-PhysTh)
22/01/2009, 14:00
We study the supergravity phenomenology in the case of an
alternative seesaw mechanism for generating neutrino masses. Changes
in the neutrino sector lead to a modification of the supersymmetric
particle spectrum and the sneutrino arises naturally as the lightest
supersymmetric particle. The obtained sneutrino has a relic density
within the WMAP range and is compatible with present...
Dr
François-xavier Josse-Michaux
(ULB-PhysTh)
22/01/2009, 14:20
We study thermal leptogenesis in a broad class of
supersymmetric SO(10) models with a left-right symmetric seesaw
mechanism. We show that including lepton flavour effects together with
the second-lightest right-handed neutrino, leptogenesis can work for
specific spectra reconstructed from the low-energy data. Moreover, we
show that corrections to the relation Me=Md are crucial...
Dr
Marco Caldarelli
(KUL)
22/01/2009, 14:40
The old suggestive observation that black holes often resemble lumps
of fluid has recently been taken beyond the level of an analogy to a
precise duality, that relates holographically a sector of anti-de
Sitter gravity to fluid dynamics. We will review this correspondence
and some of its applications, with an emphasis on the study of
instabilities of black strings and fluid tubes.
