Bulletin of the American Physical Society
APS April Meeting 2019
Volume 64, Number 3
Saturday–Tuesday, April 13–16, 2019; Denver, Colorado
Session J17: Collider and BSM II
1:30 PM–3:06 PM,
Sunday, April 14, 2019
Sheraton
Room: Grand Ballroom II
Sponsoring
Unit:
DPF
Chair: Sam Higginbotham, Princeton University
Abstract: J17.00005 : Heavy quarks within the electroweak multiplet*
2:18 PM–2:30 PM
View Presentation Abstract
Presenter:
Jaime Besprosvany
(Instituto de Física, Universidad Nacional Autónoma de México)
Authors:
Jaime Besprosvany
(Instituto de Física, Universidad Nacional Autónoma de México)
Ricardo Romero
(Universidad Autónoma Metropolitana)
Standard-model fields 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, after acquiring a vacuum expectation value v. Thus, the customary vector masses are related to the fermions' fixing the t-quark mass mt with the relation mt2 +mb2=v2/2 either for maximal hierarchy, or given the b-quark mass mb, implying mt ≈173.9 GeV, for v=246 GeV. A sum rule is derived for all quark masses that generalizes this restriction.
arXiv:1701.01191v2 [hep-ph] , To be published, PRD (2019).
*The authors acknowledge support from DGAPA-UNAM through project IN112916.
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