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Solving local anomaly equations in gauge-rank extensions of the standard model

Published version
Peer-reviewed

Type

Article

Change log

Authors

Allanach, BC 
Tooby-Smith, J 

Abstract

We consider local (or perturbative) gauge anomalies in models which extend the rank of the Standard Model (SM) gauge group and the chiral fermion content only by n SM singlets. We give a general solution to the anomaly cancellation conditions (ACCs) of an additional U(1) subgroup for the ACCs that involve only SM fermions and we examine whether a corresponding solution exists for the remaining ACCs. We show that a solution to the remaining ACCs always exists for n≥5 in the family non-universal case or n≥3 in the family-universal case. In the special case where only a single family carries non-vanishing charges, we find a general solution to all ACCs, for any value of n.

Description

Keywords

hep-th, hep-th, hep-ph

Journal Title

Physical Review D

Conference Name

Journal ISSN

2470-0010
2470-0029

Volume Title

101

Publisher

American Physical Society (APS)
Sponsorship
Science and Technology Facilities Council (ST/P000681/1)
Science and Technology Facilities Council (ST/S505316/1)
STFC (ST/T000694/1)