DISCRETE 2014: Fourth Symposium on Prospects in the Physics of Discrete Symmetries

Session

Parallel 1: Discrete symmetries (T, C, P), flavour, accidental symmetries

3 Dec 2014, 16:35

Great Hall and several lecture theatres (King's College London, Strand Campus)

69. TIME-REVERSAL, LOOP-ANTILOOP SYMMETRY AND THE BESSEL EQUATION

Giuseppe Vitiello (University of Salerno, Italy)

03/12/2014, 16:35

TIME-REVERSAL, LOOP-ANTILOOP SYMMETRY AND THE BESSEL EQUATION GIUSEPPE VITIELLO Dipartimento di Fisica “E. R. Caianiello” Università di Salerno, 84080 Salerno, Italy and INFN, Gruppo Collegato di Salerno, Italy vitiello@sa.infn.it The Bessel equation is shown to be equivalent, under suitable transformations, to a system of two damped/amplified parametric oscillator...

82. [Re]constructing Finite Flavour Groups: Horizontal Symmetry Scans from the Bottom-Up

Jim Talbert (University of Oxford)

03/12/2014, 17:10

We present a novel procedure for identifying discrete, leptonic flavour symmetries, given a class of unitary mixing matrices. By creating explicit 3D representations for generators of residual symmetries in both the charged lepton and neutrino sector, we reconstruct large(r) non-abelian flavour groups using the GAP language for computational finite algebra. We use experimental data to...

85. Discrete Flavor Symmetries and Origin of CP Violation

Mu-Chun Chen (University of California at Irvine)

03/12/2014, 17:45

We discuss the origin of CP violation in settings with a discrete (flavor) symmetry G. We show that physical CP transformations always have to be class-inverting automorphisms of G. This allows us to categorize finite groups into three types: (i) Groups that do not exhibit such an automorphism and, therefore, in generic settings, explicitly violate CP. In settings based on such groups, CP...

52. Two invisible axion models with a non-minimal flavor structure

Javier Fuentes-Martín (IFIC University of Valencia-CSIC)

03/12/2014, 18:20

In this talk I will present two invisible axion model implementations. The first one consists in an ultraviolet completion of the so-called aligned two-Higgs-doublet model that solves the strong CP problem. I will show that, for certain decoupling scenarios, mixing effects among the scalar fields allow for the possibility to obtain a rich scalar sector at the weak scale. The second model...

8. CKM and PMNS Mixing Matrices from Discrete Subgroups of SU(2)

Franklin Potter (S)

03/12/2014, 18:50

T, C, P, CP symmetries

I have the only first principles derivation of the PMNS and CKM matrices within the realm of the Standard Model lagrangian. The mixings originate from the generators of three discrete (i.e., finite) binary rotational subgroups of the EW local gauge group SU(2) x U(1) for three lepton families in R

$^3$ and four related discrete binary rotation subgroups for four quark families in...