26–30 Nov 2018
PUCP
America/Lima timezone
We hope you enjoyed the event! Don't miss the Group Photograph, which you can access from the menu.

Heavy quarks within the electroweak multiplet

27 Nov 2018, 16:05
15m
Room N111, McGregor Building (PUCP)

Room N111, McGregor Building

PUCP

Parallel Talk (Theory) Parallel Talks A

Speaker

Dr Jaime Besprosvany (Instituto de Física, Universidad Nacional Autónoma de México)

Description

Standard-model elds and their associated electroweak Lagrangian are equivalently expressed in a shared spin basis. The scalar-vector terms are written with scalar-operator components acting on quark-doublet elements, and shown to be parametrization-invariant. Such terms, and the t- and b-quark Yukawa terms are linked by the identification of the common mass-generating Higgs operating upon the other fields. Thus, the customary vector masses are related to the fermions', fixing the t-quark mass mt with the relation mt^2+mb^2= v^2/2 either for maximal hierarchy, or given the b-quark mass mb. A sum rule is derived for all quark masses that generalizes this restriction. An interpretation follows that electroweak bosons and heavy quarks belong in a multiplet.

arXiv:1701.01191
To be published, Phys. Rev. D. (2018)

Presentation materials