International Workshop on Future Linear Colliders, LCWS2024

Third family quark mass hierarchy and FCNC in the universal seesaw model

9 Jul 2024, 15:00

20m

Conference room (3F) (Ito International Research Center)

Oral presentation (in person) Top quark, QCD, Flavour, Precision Modelling Top, QCD, Flavor, Precision Modelling

Speaker

Albertus Panuluh (Hiroshima University)

Description

We study the quark sector of the universal seesaw model with $SU(2{)}_L\times SU(2{)}_R\times U(1{)}_{Y^{\prime }}$ gauge symmetry in the massless limit of the two lightest quark families. This model aims to explain the mass hierarchy of the third family quark by introducing a vector-like quark partner for each quark. In addition to the Standard Model Higgs doublet, we also introduce one right-handed Higgs doublet. In this presentation, we show the $Z,Z^{\prime },h,H$ FCNC for the third family quark ($t,b$) and the heavy partner ($t^{\prime },b^{\prime }$).

Presentation materials

Albertus_LCWS 2024_Third family quark mass hierarchy.pdf

Peer reviewing

Paper

Accepted on 3 Dec 2024 by Junping Tian

LCWS_Proceeding_Albertus_Morozumi_rev.pdf