Speaker:
Myriam Mondragón Ceballos
Institution:
Universidad Nacional Autónoma de México UNAM
Date:
Thursday, December 10, 2020
Time:
3:30 pm
Location:
Zoom Seminar
Abstract:
In the search of theories beyond the Standard Model of particle physics the principle of reduction of couplings, as well as the requirement of finiteness, can serve as guiding principles. Finite Unified Theories are N=1 supersymmetric Grand Unified Theories whose beta-functions vanish at all-loops in perturbation theory. By relating the gauge and Yukawa sectors of the theory, the number of free parameters is naturally reduced, allowing to make testable predictions. This way it was possible to obtain good predictions of the top and Higgs masses prior to their experimental discovery. Applying the same principle to the soft breaking of supersymmetry, a heavy supersymmetric spectrum is obtained.
In the search of theories beyond the Standard Model of particle physics the principle of reduction of couplings, as well as the requirement of finiteness, can serve as guiding principles. Finite Unified Theories are N=1 supersymmetric Grand Unified Theories whose beta-functions vanish at all-loops in perturbation theory. By relating the gauge and Yukawa sectors of the theory, the number of free parameters is naturally reduced, allowing to make testable predictions. This way it was possible to obtain good predictions of the top and Higgs masses prior to their experimental discovery. Applying the same principle to the soft breaking of supersymmetry, a heavy supersymmetric spectrum is obtained.
Host:
Mu-Chun Chen