Chiral Abelian gauge theories with few fermions

Autor(es)

Costa, Davi B. ^[1] ; Dobrescu, Bogdan A. ^[2] ; Fox, Patrick J. ^[2]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, BR-05508090 Sao Paulo, SP - Brazil

^[2] Fermilab Natl Accelerator Lab, Theoret Phys Dept, Batavia, IL 60510 - USA

• Tipo de documento: Artigo Científico
• Fonte: Physical Review D; v. 101, n. 9 MAY 27 2020.
• Citações Web of Science: 0

Resumo

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)

• Processo FAPESP: 19/00890-2 - Matéria escura e modelos de twin Higgs
• Beneficiário: Davi Bastos Costa
• Modalidade de apoio: Bolsas no Exterior - Estágio de Pesquisa - Mestrado