TY  - JOUR
AU  - Calibbi, L.
AU  - Lopez-Ibañez, M. L.
AU  - Melis, A.
AU  - Vives, O.
PY  - 2020
DA  - 2020//
TI  - Muon and electron g – 2 and lepton masses in flavor models
T2  - J. High Energy Phys.
JO  - Journal of High Energy Physics
SP  - 087
EP  - 23pp
VL  - 06
IS  - 6
PB  - Springer
KW  - Precision QED
KW  - Beyond Standard Model
KW  - Effective Field Theories
KW  - Quark Masses and SM Parameters
AB  - The stringent experimental bound on μ-> e gamma is compatible with a simultaneous and sizable new physics contribution to the electron and muon anomalous magnetic moments (g – 2)(l) (l = e, mu), only if we assume a non-trivial flavor structure of the dipole operator coefficients. We propose a mechanism in which the realization of the (g – 2)(l) correction is manifestly related to the mass generation through a flavor symmetry. A radiative flavon correction to the fermion mass gives a contribution to the anomalous magnetic moment. In this framework, we introduce a chiral enhancement from a non-trivial O(1) quartic coupling of the scalar potential. We show that the muon and electron anomalies can be simultaneously explained in a vast region of the parameter space with predicted vector-like mediators of masses as large as M chi is an element of [0.6, 2.5] TeV.
SN  - 1029-8479
UR  - https://arxiv.org/abs/2003.06633
UR  - https://doi.org/10.1007/JHEP06(2020)087
DO  - 10.1007/JHEP06(2020)087
LA  - English
N1  - WOS:000542705000001
ID  - Calibbi_etal2020
ER  -