Speaker
Alejandro Cabo Montes de Oca
(ICIMAF)
Description
The magnetic field dependence of vacuum energy of the Weinberg-Salam model (WSM) is investigated. It follows that the W particles contribution makes the full potential positive for extremely large fields. This changes the situation with respect to QED. Thus, the asymptotic freedom of this theory helps to solve the undesirable negative values of the Heisenberg-Euler potential at large magnetic fields in QED. The one loop potential monotonically grows up to a critical magnetic field corresponding to a non abelian instability associated to the W fields.
Author
Alejandro Cabo Montes de Oca
(ICIMAF)
Co-authors
A. E. Shabad
(P. N. Lebedev Physical Institute, Moscow, Russia)
Aurora Perez Martinez
(ICIMAF)
Daryel Manreza
(Facultad de Física, Universidad de La Habana)
Elizabeth Rodriguez Querts
(ICIMAF)
Gabriella Piccinelli
