Flavor hierarchies from dynamical scales

作者：Panico Giuliano^*; Pomarol Alex

来源：The Journal of High Energy Physics, 2016, 2016(7): 097.

DOI：10.1007/JHEP07(2016)097

• Beyond Standard Model
• Effective field theories
• Higgs Physics
• Technicolor and Composite Models

One main obstacle for any beyond the SM (BSM) scenario solving the hierarchy problem is its potentially large contributions to electric dipole moments. An elegant way to avoid this problem is to have the light SM fermions couple to the BSM sector only through bilinears, (f) over barf. This possibility can be neatly implemented in composite Higgs models. We study the implications of dynamically generating the fermion Yukawa couplings at different scales, relating larger scales to lighter SM fermions. We show that all flavor and CP-violating constraints can be easily accommodated for a BSM scale of few TeV, without requiring any extra symmetry. Contributions to B physics are mainly mediated by the top, giving a predictive pattern of deviations in Delta F = 2 and Delta F = 1 flavor observables that could be seen in future experiments.

• 出版日期2016-7-20