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Open AccessJournal ArticleDOI

Subgroup alignment in hypercolor theories

John Preskill
- 05 Jan 1981 - 
- Vol. 177, Iss: 1, pp 21-59
TLDR
In this paper, the spectral function sum rules were used to determine the symmetry breakdown pattern of the electroweak symmetry breakdown for a large class of models, including weak mixing angles and pseudo-Goldstone bosons.
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This article is published in Nuclear Physics.The article was published on 1981-01-05 and is currently open access. It has received 196 citations till now. The article focuses on the topics: Electroweak interaction & Hypercolor.

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Citations
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Journal ArticleDOI

Estimation of oblique electroweak corrections

TL;DR: The experimental limits placed on the oblique correction parameters S and T are reviewed and the value of S can be estimated for running and walking technicolor theories are discussed.
Journal ArticleDOI

SU(2) × U(1) breaking by vacuum misalignment

TL;DR: In this article, a third scenario called "oblique hypercolor" is proposed, in which a hyperquark condensate is formed which, although kinematically allowed to point in an SU(2) × U(1) preserving direction, is forced by the Yukawa interactions of the hyperquarks to misalign by a small angle, breaking SU( 2 + u(1).
Journal ArticleDOI

Strong dynamics and electroweak symmetry breaking

TL;DR: The breaking of electroweak symmetry, and origin of the associated "weak scale" vweak = 1/ q 2 √ 2GF = 175 GeV, may be due to a new strong interaction as mentioned in this paper.
Journal ArticleDOI

Flavor at SSC energies: A New mechanism for dynamically generated fermion masses

TL;DR: In this paper, the authors show how the ordinary fermions can be partially composite, where the constituents participate in SU(2) × U(1) breaking, assuming no exotic strong interaction dynamics since the force binding the constituents is entirely QCD-like.
References
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Journal ArticleDOI

Dynamical Model of Elementary Particles Based on an Analogy with Superconductivity. II

TL;DR: In this paper, a superconductive solution describing the proton-neutron doublet is obtained from a nonlinear spinor field Lagrangian, and the pions of finite mass are found as nucleon-antinucleon bound states by introducing a small bare mass into the Lagrangians which otherwise possesses a certain type of the ∆-ensuremath{gamma{5}$ invariance.
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Unity of All Elementary Particle Forces

TL;DR: In this paper, strong, electromagnetic, and weak forces are conjectured to arise from a single fundamental interaction based on the gauge group SU(5), which is known as SU(4).
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Axial vector vertex in spinor electrodynamics

TL;DR: In this article, the axial-vector vertex in spinor electrodynamics has anomalous properties which differ with those found by the formal manipulation of field equations, and the divergence of axial vector current is not the usual expression calculated from the field equations.
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A PCAC puzzle: π0→γγ in the σ-model

TL;DR: In this paper, a modification of the Pauli-Villars-Gupta regularization was proposed which respects both PCAC and gauge invariance for π0→γγ.