Physics of Higgs Boson Family

TL;DR

This paper proposes a model where the complexity of Yukawa matrices is transferred to a family of Higgs fields, simplifying interactions and explaining multiple Higgs resonances, including the 125 GeV and 750 GeV states.

Contribution

It introduces a new $r$-symmetry in an extended Standard Model, linking multiple Higgs bosons to observed resonances and simplifying Yukawa interactions.

Findings

Identification of 125 GeV and 750 GeV resonances with Higgs family members.

Introduction of a new $r$-symmetry in the extended model.

Implications for $2 ightarrow ext{gamma gamma}$ decay widths.

Abstract

In the Standard Model, there is the single Higgs field, $\phi$, which gives rise to constituent quark and lepton masses. The Yukawa coupling is a highly complex set of $3 \times 3$ matrices, resulting in many textures of quark and lepton masses. In this talk, I present a model which transfers the complexity of the Yukawa coupling matrices to a family of Higgs fields, so that the Yukawa coupling itself becomes a simple interaction. In the context of this Enriched Standard Model, we introduce a new $r$-symmetry in the extended $SU(2)_L \times U(1)_Y \times U(1)_R$ model and show how the $125 \;GeV$ and $750 \;GeV$ resonances may be identified with $H$ and $H'$, the key members of the Higgs family, with $H$ being in every way identifed with the SM Higgs. There are interesting consequences of their $2 \gamma$ decay widths.