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Title: Accidental symmetries and massless quarks in the economical 3-3-1 model

Abstract

In the framework of a 3-3-1 model with a minimal scalar sector, known as the economical 3-3-1 model, we study its capabilities of generating realistic quark masses. After a detailed study of the symmetries of the model, before and after the spontaneous symmetry breaking, we find a remaining axial symmetry that prevents some quarks from gaining mass at all orders in perturbation theory. Since this accidental symmetry is anomalous, we also consider briefly the possibility of generating their masses for nonperturbative effects. However, we find that nonperturbative effects are not enough to generate the measured masses for the three massless quarks. Hence, these results imply that the economical 3-3-1 model is not a realistic description of the electroweak interaction.

Authors:
;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science - Office of High Energy Physics
OSTI Identifier:
1391770
DOE Contract Number:
AC02-06CH11357
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. D, Particles, Fields, Gravitation and Cosmology; Journal Volume: 91; Journal Issue: 3
Country of Publication:
United States
Language:
English

Citation Formats

Montero, J. C., and Sánchez–Vega, B. L.. Accidental symmetries and massless quarks in the economical 3-3-1 model. United States: N. p., 2015. Web. doi:10.1103/PhysRevD.91.037302.
Montero, J. C., & Sánchez–Vega, B. L.. Accidental symmetries and massless quarks in the economical 3-3-1 model. United States. doi:10.1103/PhysRevD.91.037302.
Montero, J. C., and Sánchez–Vega, B. L.. Sun . "Accidental symmetries and massless quarks in the economical 3-3-1 model". United States. doi:10.1103/PhysRevD.91.037302.
@article{osti_1391770,
title = {Accidental symmetries and massless quarks in the economical 3-3-1 model},
author = {Montero, J. C. and Sánchez–Vega, B. L.},
abstractNote = {In the framework of a 3-3-1 model with a minimal scalar sector, known as the economical 3-3-1 model, we study its capabilities of generating realistic quark masses. After a detailed study of the symmetries of the model, before and after the spontaneous symmetry breaking, we find a remaining axial symmetry that prevents some quarks from gaining mass at all orders in perturbation theory. Since this accidental symmetry is anomalous, we also consider briefly the possibility of generating their masses for nonperturbative effects. However, we find that nonperturbative effects are not enough to generate the measured masses for the three massless quarks. Hence, these results imply that the economical 3-3-1 model is not a realistic description of the electroweak interaction.},
doi = {10.1103/PhysRevD.91.037302},
journal = {Physical Review. D, Particles, Fields, Gravitation and Cosmology},
number = 3,
volume = 91,
place = {United States},
year = {Sun Feb 01 00:00:00 EST 2015},
month = {Sun Feb 01 00:00:00 EST 2015}
}