TY  - JOUR
AU  - Fuentes-Martin, J.
AU  - Portoles, J.
AU  - Ruiz-Femenia, P.
PY  - 2015
DA  - 2015//
TI  - Instanton-mediated baryon number violation in non-universal gauge extended models
T2  - J. High Energy Phys.
JO  - Journal of High Energy Physics
SP  - 134
EP  - 34pp
VL  - 01
IS  - 1
PB  - Springer
KW  - Beyond Standard Model
KW  - Solitons Monopoles and Instantons
KW  - Effective field theories
KW  - Global Symmetries
AB  - Instanton solutions of non-abelian Yang-Mills theories generate an effective action that may induce lepton and baryon number violations, namely Delta B = Delta L = nf, being nf the number of families coupled to the gauge group. In this article we study instanton mediated processes in a SU( 2)(l)circle times SU(2)(h)circle times U(1) extension of the Standard Model that breaks universality by singularizing the third family. In the construction of the instanton Green functions we account systematically for the inter-family mixing. This allows us to use the experimental bounds on proton decay in order to constrain the gauge coupling of SU(2)(h). Tau lepton non-leptonic and radiative decays with Delta B = Delta L = 1 are also analysed.
SN  - 1029-8479
UR  - http://arxiv.org/abs/1411.2471
UR  - https://doi.org/10.1007/JHEP01(2015)134
DO  - 10.1007/JHEP01(2015)134
LA  - English
N1  - WOS:000363463300002
ID  - Fuentes-Martin_etal2015
ER  -