Symmetry restoration at finite temperature with weak magnetic fields

Jorge Navarro, Angel Sánchez, Maria Elena Tejeda-Yeomans, Alejandro Ayala, and Gabriella Piccinelli

Phys. Rev. D 82, 123007 – Published 22 December 2010

Abstract

We study symmetry restoration at finite temperature in the standard model during the electroweak phase transition in the presence of a weak magnetic field. We compute the finite temperature effective potential up to the contribution of ring diagrams, using the broken phase degrees of freedom, and keep track of the gauge parameter dependence of the results. We show that under these conditions, the phase transition becomes stronger first order.

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Received 29 July 2010

DOI:https://doi.org/10.1103/PhysRevD.82.123007

Authors & Affiliations

Jorge Navarro^1,2, Angel Sánchez³, Maria Elena Tejeda-Yeomans⁴, Alejandro Ayala¹, and Gabriella Piccinelli⁵

¹Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, Apartado Postal 70-543, México Distrito Federal 04510, Mexico
²Departamento de Física, Universidad del Atlántico, Km. 7 antigua vía a Puerto Colombia, A. A. 1890, Barranquilla, Colombia
³Instituto de Física y Matemáticas, Universidad Michoacana de San Nicolás de Hidalgo, Apartado Postal 2-82, Morelia, Michoacán 58040, México
⁴Departamento de Física, Universidad de Sonora, Boulevard Luis Encinas J. y Rosales, Colonia Centro, Hermosillo, Sonora 83000, Mexico
⁵Centro Tecnológico, FES Aragón, Universidad Nacional Autónoma de México, Avenida Rancho Seco S/N, Bosques de Aragón, Nezahualcóyotl, Estado de México 57130, Mexico

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Issue

Vol. 82, Iss. 12 — 15 December 2010

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Physical Review D

covering particles, fields, gravitation, and cosmology