Cargando…

Flavor hierarchies from dynamical scales

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, $\bar ff$. This possibility c...

Descripción completa

Detalles Bibliográficos
Autores principales: Panico, Giuliano, Pomarol, Alex
Lenguaje:eng
Publicado: 2016
Materias:
Acceso en línea:https://dx.doi.org/10.1007/JHEP07(2016)097
http://cds.cern.ch/record/2141285
_version_ 1780950111901188096
author Panico, Giuliano
Pomarol, Alex
author_facet Panico, Giuliano
Pomarol, Alex
author_sort Panico, Giuliano
collection CERN
description 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, $\bar ff$. 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.
id cern-2141285
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2016
record_format invenio
spelling cern-21412852022-08-10T12:44:12Zdoi:10.1007/JHEP07(2016)097http://cds.cern.ch/record/2141285engPanico, GiulianoPomarol, AlexFlavor hierarchies from dynamical scalesParticle Physics - PhenomenologyOne 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, $\bar ff$. 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.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, $ \overline{f}f $ . 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 ΔF = 2 and ΔF = 1 flavor observables that could be seen in future experiments.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, $\bar ff$. 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.arXiv:1603.06609CERN-TH-2016-065CERN-TH-2016-065oai:cds.cern.ch:21412852016-03-21
spellingShingle Particle Physics - Phenomenology
Panico, Giuliano
Pomarol, Alex
Flavor hierarchies from dynamical scales
title Flavor hierarchies from dynamical scales
title_full Flavor hierarchies from dynamical scales
title_fullStr Flavor hierarchies from dynamical scales
title_full_unstemmed Flavor hierarchies from dynamical scales
title_short Flavor hierarchies from dynamical scales
title_sort flavor hierarchies from dynamical scales
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1007/JHEP07(2016)097
http://cds.cern.ch/record/2141285
work_keys_str_mv AT panicogiuliano flavorhierarchiesfromdynamicalscales
AT pomarolalex flavorhierarchiesfromdynamicalscales