Conveners
Parallel Session B. Family symmetries-I
- Graham ROSS (Oxford University)
Kai-Feng Chen
(Physics Department - National Taiwan University (NTU))
11/12/2008, 14:30
Family Symmetries
This presentation will adress the experimental issues and discovery potentials for a fourth generation charge -1/3 quark decaying to a W and a top quark and for a right-handed W that decays to a lepton and a heavy neutrino, predicted by Left-Right-symmetric models. Both produce almost background-free final states containing multiple leptons and jets. The residual backgrounds and reach for each...
Mr
Joel Jones Perez
(Universitat de Valencia)
11/12/2008, 14:50
Family Symmetries
The SUSY flavour problem is deeply related to the origin of flavour and hence to the origin of the SM Yukawa couplings themselves. Since all CP-violation in the SM is restricted to the flavour sector, it is possible that the SUSY CP problem is related to the origin of flavour as well.
In this work, we present three variations of an SU(3) flavour model with spontaneous CP violation. Such...
Mr
Luca Merlo
(Università di Padova & INFN Padova)
11/12/2008, 15:10
Family Symmetries
It is presented an analysis on lepton flavour violating transitions, leptonic magnetic dipole moments and electric dipole moments in a class of models characterized by the flavour symmetry A4 x Z3 x U(1)_{FN}, whose choice is motivated by the approximate tri-bimaximal mixing observed in neutrino oscillations. A low-energy effective Lagrangian is constructed, where these effects are dominated...
Alfonso Mondragon
(Instituto de Fisica, UNAM)
11/12/2008, 15:30
Family Symmetries
A variety of lepton flavour violating effects related to neutrino
oscillations and mixings will be systematically discussed in the
framework of a minimal S3-invariant extension of the Standard
Model. We will give explicit analytical expressions for the matrices
of the Yukawa couplings, the results of a computation of the
branching ratios of some selected flavour-changing neutral...
Prof.
emilio torrente-lujan
(dept. fisica)
11/12/2008, 15:50
Family Symmetries
We present a common explanation of the fermion mass hierarchy and the large lepton mixing angles in the context of a grand unified flavor and gauge theory (GUTF). Our starting point is a SU(3)xU(1) flavor symmetry and a SO(10) GUT, a basic ingredient of our theory which plays a major role is that two different breaking pattern of the flavor symmetry are at work. On one side, the dynamical...
Dr
Frank Potter
(Sciencegems.com)
11/12/2008, 16:10
Family Symmetries
Family symmetries of leptons and quarks are expressions of specific discrete rotational subgroups of the Standard Model gauge group. Their discrete symmetry properties include elliptic modular functions and the invariant J from which one predicts mass ratios, without any need for a Higgs. The family hierarchies, the origin of baryon number, and exact color symmetry are explained. The geometric...
