Panini-su. 6. 4. 3 “nami”

Symmetry Breaking in [SU(6)] 3 × Z3

We analize the different ways for the spontaneous breaking of the gauge symmetry, for the [SU(6)]⊗Z3 family unification model. In particular we study the consequences of a previous selection for the vacuum expectation values of the Higgs fields, showing that such set predicts unwanted flavor changing neutral currents at the mZ = 91GeV s mass scale. A new set of vacuum expectation values which s...

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SU(3) and SU(4) Singlet Quantum Hall States at ν=2/3.

We report on an exact diagonalization study of fractional quantum Hall states at a filling factor of ν=2/3 in a system with a fourfold degenerate n=0 Landau level and SU(4) symmetric Coulomb interactions. Our investigation reveals previously unidentified SU(3) and SU(4) singlet ground states which appear at a flux quantum shift 2 when a spherical geometry is employed and lie outside the establi...

3-(4-Meth­oxy­benzo­yl)-6-nitro­coumarin

In the title coumarin derivative (also known as 2H-chromen-2-one or 2H-1-benzopyran-2-one), C17H11NO6, the coumarin ring system is nearly planar, with a dihedral angle of 3.35 (9)° between the pyrone and the benzene rings. The dihedral angle between the planes formed by the coumarin ring system and the benzene substituent is 54.60 (7)°, clearly showing the non-coplanarity of the whole aromatic ...

1 6 7 SU ( 3 ) Flavour Symmetries and CP Violation

In order to satisfy current FCNC and CP violation bounds, SUSY flavour structures cannot be generic. An interesting solution to these SUSY Flavour and CP Problems lies on the use of an SU(3) family symmetry which spontaneously breaks CP symmetry. Typical observables of such a model are electric dipole moments and LFV processes. In addition, these models can give contributions to CP violation in...