Electroweak phase transition in the economical 3-3-1 model

• Published in: The European physical journal. C, Particles and fields Vol. 75; no. 7; pp. 1 - 13
• Main Authors: Phong, Vo Quoc, Long, Hoang Ngoc, Van, Vo Thanh, Minh, Le Hoang
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.07.2015; Springer; Springer Nature B.V
• Subjects: Analysis; Astronomy; Astrophysics and Cosmology; Bosons; Cosmology; Deviation; Economics; Electroweak model; Elementary Particles; Hadrons; Heavy Ions; Measurement Science and Instrumentation; Nuclear Energy; Nuclear Physics; Phase transformations; Physics; Physics and Astronomy; Quantum Field Theories; Quantum Field Theory; Quarks; Regular Article - Theoretical Physics; Strength; String Theory; Texts
• ISSN: 1434-6044; 1434-6052
• DOI: 10.1140/epjc/s10052-015-3550-2

We consider the EWPT in the economical 3-3-1 (E331) model. Our analysis shows that the EWPT in the model is a sequence of two first-order phase transitions, S U ( 3 ) → S U ( 2 ) at the TeV scale and S U ( 2 ) → U ( 1 ) at the 100 GeV scale. The EWPT S U ( 3 ) → S U ( 2 ) is triggered by the new bosons and the exotic quarks; its strength is about 1–13 if the mass ranges of these new particles are 10 2 –10 3  GeV. The EWPT S U ( 2 ) → U ( 1 ) is strengthened by only the new bosons; its strength is about 1–1.15 if the mass parts of H 1 0 , H 2 ± and Y ± are in the ranges 10–10 2  GeV. The contributions of H 1 0 and H 2 ± to the strengths of both EWPTs may make them sufficiently strong to provide large deviations from thermal equilibrium and B violation necessary for baryogenesis.