Eur. Phys. J. C (2017) 77: 185
https://doi.org/10.1140/epjc/s10052-017-4753-5

Regular Article - Theoretical Physics

Baryon non-invariant couplings in Higgs effective field theory

Departamento de Física Teórica and Instituto de Fśica Teórica, IFT-UAM/CSIC, Universidad Autónoma de Madrid, Cantoblanco, 28049, Madrid, Spain

^* e-mail: sara.saa@uam.es

Received: 29 December 2016
Accepted: 9 March 2017
Published online: 23 March 2017

Abstract

The basis of leading operators which are not invariant under baryon number is constructed within the Higgs effective field theory. This list contains 12 dimension six operators, which preserve the combination , to be compared to only 6 operators for the standard model effective field theory. The discussion of the independent flavour contractions is presented in detail for a generic number of fermion families adopting the Hilbert series technique.