# Dynamical symmetry breaking and composite model for leptons, quarks, and Higgs mesons

## Abstract

Dynamical symmetry breaking producing light-fermion generations, masses of fermions and bosons, and parity violation is proposed in a composite model. The model is described by three types of constituents, which are written in terms of two types of fermion constituents, a leptonic one t/sup l/ and a quarklike one t/sup q/, and a bosonic constituent S/sup 0/. Gauge interactions SU(3)/sub H/xSU(3)/sub c/xSU(2)/sub L/x SU(2)/sub R/xU(1)/sub B/-L are introduced. Leptons (l), quarks (q), and Higgs scalars (..delta..) for parity violation are, respectively, represented by the hypercolor (SU(3)/sub H/) singlet bound states of the types t/sup l/S/sup 0dagger/, t/sup q/S/sup 0dagger/, and t/sup l/t/sup l/S/sup 0/ and there also exist series, corresponding to l, q, and ..delta.., with the same quantum numbers but S/sup 0/ boson number. Dynamical symmetry breaking is induced by S/sup 0/-boson condensation in the vacuum, and light-fermion generations and Higgs scalars with a negative squared mass for parity violation can be produced. Constraints for reproducing the Weinberg-Salam model at low energies, neutrino masses with a Majorana mass term, relations among charged light fermions, and mixing between left-handed weak bosons and right-handed ones are presented in this scheme. The top-quark mass m/sub t/approx. =50 +- 15 GeV is predicted,more »

- Authors:

- Publication Date:

- Research Org.:
- Institute of Physics, University of Tsukuba, Ibaraki 305, Japan

- OSTI Identifier:
- 5902311

- Resource Type:
- Journal Article

- Journal Name:
- Phys. Rev. D; (United States)

- Additional Journal Information:
- Journal Volume: 31:9

- Country of Publication:
- United States

- Language:
- English

- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; COMPOSITE MODELS; SYMMETRY BREAKING; HIGGS BOSONS; LEPTONS; QUARKS; BOUND STATE; MESONS; P INVARIANCE; QUANTUM NUMBERS; SU-2 GROUPS; SU-3 GROUPS; U-1 GROUPS; BOSONS; ELEMENTARY PARTICLES; FERMIONS; HADRONS; INVARIANCE PRINCIPLES; LIE GROUPS; MATHEMATICAL MODELS; PARTICLE MODELS; POSTULATED PARTICLES; SU GROUPS; SYMMETRY GROUPS; U GROUPS; 645301* - High Energy Physics- Particle Invariance Principles & Symmetries- General- (-1987); 645201 - High Energy Physics- Particle Interactions & Properties-Theoretical- General & Scattering Theory

### Citation Formats

```
Kobayashi, T.
```*Dynamical symmetry breaking and composite model for leptons, quarks, and Higgs mesons*. United States: N. p., 1985.
Web. doi:10.1103/PhysRevD.31.2340.

```
Kobayashi, T.
```*Dynamical symmetry breaking and composite model for leptons, quarks, and Higgs mesons*. United States. https://doi.org/10.1103/PhysRevD.31.2340

```
Kobayashi, T. Wed .
"Dynamical symmetry breaking and composite model for leptons, quarks, and Higgs mesons". United States. https://doi.org/10.1103/PhysRevD.31.2340.
```

```
@article{osti_5902311,
```

title = {Dynamical symmetry breaking and composite model for leptons, quarks, and Higgs mesons},

author = {Kobayashi, T},

abstractNote = {Dynamical symmetry breaking producing light-fermion generations, masses of fermions and bosons, and parity violation is proposed in a composite model. The model is described by three types of constituents, which are written in terms of two types of fermion constituents, a leptonic one t/sup l/ and a quarklike one t/sup q/, and a bosonic constituent S/sup 0/. Gauge interactions SU(3)/sub H/xSU(3)/sub c/xSU(2)/sub L/x SU(2)/sub R/xU(1)/sub B/-L are introduced. Leptons (l), quarks (q), and Higgs scalars (..delta..) for parity violation are, respectively, represented by the hypercolor (SU(3)/sub H/) singlet bound states of the types t/sup l/S/sup 0dagger/, t/sup q/S/sup 0dagger/, and t/sup l/t/sup l/S/sup 0/ and there also exist series, corresponding to l, q, and ..delta.., with the same quantum numbers but S/sup 0/ boson number. Dynamical symmetry breaking is induced by S/sup 0/-boson condensation in the vacuum, and light-fermion generations and Higgs scalars with a negative squared mass for parity violation can be produced. Constraints for reproducing the Weinberg-Salam model at low energies, neutrino masses with a Majorana mass term, relations among charged light fermions, and mixing between left-handed weak bosons and right-handed ones are presented in this scheme. The top-quark mass m/sub t/approx. =50 +- 15 GeV is predicted, which is derived from the formula m/sub t/(m/sub ..mu../-m/sub s/)+m/sub b/(m/sub c/-m/sub ..mu../) +m/sub tau/(m/sub s/-m/sub c/) = 0, given in the limit of m/sub e/ = m/sub u/ = m/sub d/ = 0.},

doi = {10.1103/PhysRevD.31.2340},

url = {https://www.osti.gov/biblio/5902311},
journal = {Phys. Rev. D; (United States)},

number = ,

volume = 31:9,

place = {United States},

year = {1985},

month = {5}

}