Mr
Michael Schmidt
(Max-Planck Institut für Kernphysik)

7/28/07, 4:30 PM

Flavor Physics

Parallel Talk

Analytical formulae of the renormalization group equations are presented in terms of
mixing parameters for type I and type II seesaw models. The evolution of neutrino mass
parameters are discussed in the SM extended by right-handed neutrinos and a Higgs
triplet as well as the extended MSSM. Implications for testing predictions of mass
models with future precision experiments are analyzed.

Mr
Florian Plentinger
(Universität Würzburg)

7/28/07, 4:50 PM

Flavor Physics

Parallel Talk

We systematically construct the seesaw textures compatible with current data from
generic assumptions. We use the context of extended quark-lepton complementarity,
i.e., we assume that all contributing mixing angles and mass hierarchies can be
described by a small quantity of the order the Cabibbo angle as a single remnant of a
Grand Unified Theory. We do not impose special assumptions,...

Dr
Joern Kersten
(Abdus Salam ICTP)

7/28/07, 5:10 PM

Flavor Physics

Parallel Talk

We consider the prospects for detecting right-handed (Standard Model
singlet) neutrinos introduced in the see-saw mechanism at future
accelerators. This requires sufficiently large mixing of these
neutrinos with the left-handed neutrinos, which is only possible if
contributions from different right-handed neutrinos to the light
neutrino mass matrix cancel at a level of $10^{-8}$. We...

Dr
Sören Wiesenfeldt
(UIUC)

7/28/07, 5:30 PM

Flavor Physics

Parallel Talk

Motivated by SO(10) models with a vectorial fourth generation of down quarks and
leptons, we consider the scenario where the neutrino Majorana and Dirac mass matrices
conincide with those of up- and down-quarks, respectively. Then the small neutrino
mass hierarchy follows from the mismatch of the quark mass hierarchies. Together with
the observed leptonic mixing angles, we arrive at a...

Mr
Wolfgang Altmannshofer
(Technische Universität München)

7/28/07, 5:50 PM

Flavor Physics

Parallel Talk

Flavor changing neutral current (FCNC) processes, being forbidden in the Standard
Model at the tree level, play an important role in the test of extensions of this
model. One popular class of new physics models are Grand Unified Theories (GUTs).
Such models, when supplemented by flavor symmetries allow for concrete predictions
for various observables - including FCNC processes - in terms...

Dr
Jae-hyeon Park
(Tohoku University)

7/28/07, 6:10 PM

Flavor Physics

Parallel Talk

Leptonic and hadronic flavor violations are studied in a general
SU(5)-type supersymmetric grand unification model. Due to a GUT
symmetry relating quarks and leptons, flavor violating processes in
both sectors can be used to constrain a given single source of flavor
non-universality at the GUT scale. Without assuming a very specific
boundary condition on the soft supersymmetry breaking...