Date: miércoles 10 de julio –  14:30 hrs. (Chile Continental) –  vía online

Speaker: Dr. Arsenii Titov, Universidad de Pisa (Italia)

Title:  “Solving the strong CP problem without axions”

Abstract:

We formulate general conditions under which the strong CP problem is solved by spontaneous CP violation. Quark mass matrix elements are polynomials in the CP-breaking order parameters, engineered such that their determinant is a real constant. These conditions can be realised in supersymmetric theories with an anomaly-free local flavour symmetry, suggesting a unified solution to the strong CP problem and the flavour puzzle.  Our solution can be implemented using either a local U(1) symmetry or modular invariance. We present concrete modular-invariant realisations. Heavy vector-like quarks are in general not required, but their presence allows for models where coloured particles fill non-singlet representations of the finite modular groups.

Unirse a la reunión Zoom con nombre y apellido (with name and surname):    https://reuna.zoom.us/j/87161425888?pwd=MWFZUFNQRnI4MXo1QzFLdGpJblllZz09

 ID de reunión: 871 6142 5888

Código de acceso: 100126

NOTE:  The seminars are uploaded in the youtube channel UTFSMHEP Seminars:   https://www.youtube.com/channel/UCYq1A4y7pCHqovaXsrtd6hg