TY  - JOUR
AU  - Boucenna, S. M.
AU  - Celis, A.
AU  - Fuentes-Martin, J.
AU  - Vicente, A.
AU  - Virto, J.
PY  - 2016
DA  - 2016//
TI  - Non-abelian gauge extensions for B-decay anomalies
T2  - Phys. Lett. B
JO  - Physics Letters B
SP  - 214
EP  - 219
VL  - 760
PB  - Elsevier Science Bv
AB  - We study the generic features of minimal gauge extensions of the Standard Model in view of recent hints of lepton-flavor non-universality in semi-leptonic b -> sl(+)l(-) and b -> cl nu decays. We classify the possible models according to the symmetry-breaking pattern and the source of flavor non-universality. We find that in viable models the SU(2)(L) factor is embedded non-trivially in the extended gauge group, and that gauge couplings should be universal, hinting to the presence of new degrees of freedom sourcing non-universality. Finally, we provide an explicit model that can explain the B-decay anomalies in a coherent way and confront it with the relevant phenomenological constraints.
SN  - 0370-2693
UR  - http://arxiv.org/abs/1604.03088
UR  - https://doi.org/10.1016/j.physletb.2016.06.067
DO  - 10.1016/j.physletb.2016.06.067
LA  - English
N1  - WOS:000382890500032
ID  - Boucenna_etal2016
ER  -