Jacobo Lopez-Pavon
(Madrid Autonoma Univ. Spain)
05/03/2008 17:00
M.
Steve Blanchet
(Max-Planck-Institut fuer Physik, Munich)
05/03/2008 17:05
As it was recently realized, flavor effects in leptogenesis modify the established "unflavored" picture in many ways. One of them is the appearance of a link between low-energy CP violating phases and the matter-antimatter asymmetry of the Universe. In particular, the only phase in the PMNS mixing matrix that one can hope to measure in the future, i.e. the Dirac phase, can be the unique source...
Mlle
Amanda Deisher
(University of California, Berkeley)
05/03/2008 17:10
We present a measurement of the $B^0_s$ meson lifetime using fully and partially reconstructed hadronic decays $B^0_s\rightarrow D_s^- \pi^+(X)$ followed by $D_s^- \rightarrow \phi\pi^-$. The data sample was recorded with the CDF II detector at the Fermilab Tevatron and corresponds to an integrated luminosity of 1.3 fb$^{-1}$ from $p\bar{p}$ collisions at $\sqrt{s} = 1.96$ TeV.
M.
Bjoern Penning
(University of Freiburg)
05/03/2008 17:15
M.
Dmitry Zaborov
(Institute for Theoretical and Experimental Physics, Moscow, Russia)
05/03/2008 17:30
Mme
Chiara Arina
(University of Torino and INFN)
05/03/2008 17:35
A thorough analysis of sneutrinos as dark matter candidates is perfomed, in different classes of supersymmetric models, as is typically done for the neutralino dark matter. First in the Minimal Supersymmetric Standard Model, sneutrinos are marginally compatible with existing experimental bounds, including direct detection, provided they compose a subdominant component of dark matter. Then...
Dr
Emiliano Molinaro
(S.I.S.S.A.)
05/03/2008 17:40
The effects of the lightest neutrino mass in ``flavoured'' leptogenesis are investigated in the case when the CP-violation necessary for the generation of the baryon asymmetry of the Universe is due exclusively to the Dirac and/or Majorana phases in the neutrino mixing matrix U. The type I see-saw scenario with three heavy right-handed Majorana neutrinos having hierarchical spectrum is...
M.
yves Lemiere
(LPCCaen, ENSICAEN, Unuiversité de Caen, CNRS/IN2P3, Caen, France)
05/03/2008 17:45
M.
Florian BONNET
(Laboratoire de Physique Théorique)
05/03/2008 17:55
The \mu -> e \gamma and \tau -> l \gamma decay rates are evaluated in the framework of the seesaw model with triplets of fermions. We show that the observation of one of these radiative decays by the new planed experiments would contradict the bounds which arise in this model coming from \mu -> eee and \tau 3l decays, which is an interesting possibility to exclude the model.
Van Nguyen
(Columbia Univ. USA)
05/03/2008 18:00
