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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Chiral Abelian gauge theories with few fermions

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Author(s):
Costa, Davi B. [1] ; Dobrescu, Bogdan A. [2] ; Fox, Patrick J. [2]
Total Authors: 3
Affiliation:
[1] Univ Sao Paulo, BR-05508090 Sao Paulo, SP - Brazil
[2] Fermilab Natl Accelerator Lab, Theoret Phys Dept, Batavia, IL 60510 - USA
Total Affiliations: 2
Document type: Journal article
Source: Physical Review D; v. 101, n. 9 MAY 27 2020.
Web of Science Citations: 0
Abstract

We construct chiral theories with the smallest number n(chi) of Weyl fermions that form an anomaly-free set under various Abelian gauge groups. For the U(1) group, where n n(chi) = 5, we show that the general solution to the anomaly equations is a set of charges given by cubic polynomials in three integer parameters. For the U(1) x U(1) gauge group we find n x = 6, and derive the general solution to the anomaly equations, in terms of 6 parameters. For U(1) x U(1) x U(1) we show that n(chi) = 8, and present some families of solutions. These chiral gauge theories have potential applications to dark matter models, right-handed neutrino interactions, and other extensions of the Standard Model. As an example, we present a simple dark sector with a natural mass hierarchy between three dark matter components. (AU)

FAPESP's process: 19/00890-2 - Dark matter and twin Higgs models
Grantee:Davi Bastos Costa
Support type: Scholarships abroad - Research Internship - Master's degree