FLASY 2018: 7th Workshop on Flavour Symmetries and Consequences in Accelerators and Cosmology

Session

Afternoon session II

2 Jul 2018, 16:30

Lecture Hall 1, Foyer, Department of Physics (University of Basel)

21. New results from the OPERA experiment in the CNGS neutrino beam

Nicoletta Mauri

02/07/2018, 16:30

A new data analysis was performed, based on looser selection criteria and multivariate approach. Oscillation parameters and nu_tau cross-section have been determined with a reduced statistical uncertainty, and the discovery of tau neutrino appearance is confirmed with an improved significance level. Moreover, the search for electron neutrino events has been extended to the full dataset,...

58. TBA

Jose WF Valle (AHEP Group at IFIC, CSIC- U Valencia)

02/07/2018, 17:00

TBA

32. $\mu\tau$ reflection symmetry with a high scale texture-zero

Celso Nishi (UFABC, Santo André, SP, BRAZIL)

02/07/2018, 17:30

The $\mu\tau$-reflection symmetry is a simple symmetry capable of predicting all the unknown CP phases of the lepton sector and the atmospheric angle but too simple to predict the absolute neutrino mass scale or the mass ordering.
By combining this symmetry with a discrete abelian symmetry in a nontrivial way
we can additionally enforce a texture-zero for the heavy neutrino mass matrix which...

46. Neutrino physics and CP violation in three generation seesaw model with four-zero textures

Akihiro Yuu (University of Hiroshima)

02/07/2018, 18:00

Neutrino is recognized to have a tiny but non-zero mass by some physical phenomena, such as the neutrino oscillation. However, the Standard Model cannot fully describe how the neutrinos get their masses. The beyond Standard Model which adds the necessary modification for this problem has been required. As a possibility to solve the neutrino mass problem, the seesaw mechanism has been...

31. L and B beyond the SM

Ernest Ma (University of California, Riverside)

03/07/2018, 17:00

Some novel notions of lepton and baryon numbers are discussed, with applications to dark matter as well as the strong CP problem.

8. Generating the SM fermion mass hierarchy by sequential loop suppression

Antonio Enrique Cárcamo Hernández (Universidad Técnica Federico Santa María)

03/07/2018, 17:30

The first part of my talk is devoted to the discussion of the first model where the SM fermion mass hierarchy is generated by a sequential loop suppression mechanism: tree-level top quark mass; 1-loop bottom, charm, tau and muon masses; 2-loop masses for the light up, down and strange quarks as well as for the electron; and 4-loop masses for the light active neutrinos. The model features...

20. QCD axion from flavour symmetries

Prof. Eung Jin Chun (KIAS)

03/07/2018, 18:00

We show how an accidental U(1) Peccei-Quinn (PQ) symmetry can arise in a realistic Pati-Salam unified theory of flavour. A QCD axion arises from a linear combination of A4 triplet favons, which are responsible for fermion flavour structures and thus specific flavour-violating couplings of the axion are predicted. We also discuss the prospect of probing such a flavourful axion in future experiments.

51. Several Problems in Particle Physics and Cosmology Solved in One SMASH

Andreas Ringwald (Deutsches Elektronen-Synchrotron DESY)

04/07/2018, 17:00

The Standard Model (SM) of particle physics is a big success. However, it lacks
an explanation of cosmic inflation, of the matter-anti-matter asymmetry of the Universe, of dark matter, of neutrino oscillations, and of the feebleness of strong CP violation. The latter may be explained by an extension of the Standard Model by a complex scalar field charged under a spontaneously broken global...

45. Flavour effects in low scale leptogenesis

Marco Drewes (Universite Catholique de Louvain (UCL) (BE))

04/07/2018, 17:30

To be filled later