A GENERATION MODEL OF COMPOSITE LEPTONS AND QUARKS

2005 ◽  
Vol 14 (08) ◽  
pp. 1151-1169 ◽  
Author(s):  
B. A. ROBSON
Keyword(s):  
Standard Model ◽  
Weak Interaction ◽  
Composite Model ◽  
Generation Model ◽  
New Model ◽  
Color Type ◽  
The Standard Model ◽  
Triplet Representation

A new composite model for leptons and quarks is presented. The model treats leptons and quarks as composites of three kinds of spin-½ particles (rishons), which belong to a fundamental triplet representation of a flavor SU (3) symmetry. A super-strong color-type force binds rishons together to form colorless leptons or quarks. Quarks display a valence property, which corresponds to the quark color of the Standard Model. Leptons have no valence property and are inert with respect to the super-strong color interaction. Both the strong color force and the weak interaction of the Standard Model are residual interactions of the super-strong color force in the new model.

scholarly journals A QUANTUM THEORY OF GRAVITY BASED ON A COMPOSITE MODEL OF LEPTONS AND QUARKS

2011 ◽  
Vol 20 (03) ◽  
pp. 733-745 ◽  
Author(s):  
B. A. ROBSON
Keyword(s):  
Quantum Theory ◽  
Standard Model ◽  
Gravitational Interaction ◽  
Composite Model ◽  
Mass Hierarchy ◽  
New Model ◽  
Fundamental Particles ◽  
Qualitative Understanding ◽  
The Standard Model ◽  
Theory Of Gravity

A quantum theory of gravity, based upon a composite model of leptons and quarks, is presented. The model treats leptons and quarks as composites of three kinds of spin-[Formula: see text] particles (rishons) and/or their antiparticles. A strong color force, mediated by massless hypergluons, binds rishons and/or antirishons together to form colorless leptons or colored quarks, the fundamental particles of the Standard Model. The new model provides a qualitative understanding of the mass hierarchy of the three generations of leptons and quarks. An earlier conjecture that the residual interaction of the strong color force acting between any two colorless particles be identified with the corresponding gravitational interaction, is shown to lead approximately to Newton's law of gravitation.

COMPARISON OF QUARK MIXING IN THE STANDARD AND GENERATION MODELS

2006 ◽  
Vol 15 (03) ◽  
pp. 617-625 ◽  
Author(s):  
P. W. EVANS ◽  
B. A. ROBSON
Keyword(s):  
Standard Model ◽  
Weak Interaction ◽  
Generation Model ◽  
Cabibbo Angle ◽  
Matrix Elements ◽  
Mixing Parameters ◽  
Interaction Processes ◽  
Quark Mixing ◽  
Protons And Neutrons ◽  
The Standard Model

The different interpretations of quark mixing involved in weak interaction processes in the Standard Model and the Generation Model are discussed with a view to obtaining a physical understanding of the Cabibbo angle and related quantities. It is proposed that hadrons are composed of mixed-quark states, with the quark mixing parameters being determined by the Cabibbo-Kobayashi-Maskawa matrix elements. In this model, protons and neutrons contain a contribution of about 5% and 10%, respectively, of strange valency quarks.

scholarly journals WHAT IS A MATTER PARTICLE?

2006 ◽  
Vol 15 (01) ◽  
pp. 259-272
Author(s):  
TSAN UNG CHAN
Keyword(s):  
Standard Model ◽  
Weak Interaction ◽  
Strong Interaction ◽  
Neutral Particle ◽  
Z Bosons ◽  
Baryon Number ◽  
Lepton Number ◽  
Neutral Particles ◽  
The Standard Model ◽  
The Stability

Positive baryon numbers (A>0) and positive lepton numbers (L>0) characterize matter particles while negative baryon numbers and negative lepton numbers characterize antimatter particles. Matter particles and antimatter particles belong to two distinct classes of particles. Matter neutral particles are particles characterized by both zero baryon number and zero lepton number. This third class of particles includes mesons formed by a quark and an antiquark pair (a pair of matter particle and antimatter particle) and bosons which are messengers of known interactions (photons for electromagnetism, W and Z bosons for the weak interaction, gluons for the strong interaction). The antiparticle of a matter particle belongs to the class of antimatter particles, the antiparticle of an antimatter particle belongs to the class of matter particles. The antiparticle of a matter neutral particle belongs to the same class of matter neutral particles. A truly neutral particle is a particle identical with its antiparticle; it belongs necessarily to the class of matter neutral particles. All known interactions of the Standard Model conserve baryon number and lepton number; matter cannot be created or destroyed via a reaction governed by these interactions. Conservation of baryon and lepton number parallels conservation of atoms in chemistry; the number of atoms of a particular species in the reactants must equal the number of those atoms in the products. These laws of conservation valid for interaction involving matter particles are indeed valid for any particles (matter particles characterized by positive numbers, antimatter particles characterized by negative numbers, and matter neutral particles characterized by zero). Interactions within the framework of the Standard Model which conserve both matter and charge at the microscopic level cannot explain the observed asymmetry of our Universe. The strong interaction was introduced to explain the stability of nuclei: there must exist a powerful force to compensate the electromagnetic force which tends to cause protons to fly apart. The weak interaction with laws of conservation different from electromagnetism and the strong interaction was postulated to explain beta decay. Our observed material and neutral universe would signify the existence of another interaction that did conserve charge but did not conserve matter.

scholarly journals Natural Meanings and Cultural Values

2019 ◽  
Vol 41 (1) ◽  
pp. 3-16 ◽  
Author(s):  
Simon P. James ◽  
Keyword(s):  
Standard Model ◽  
Cultural Values ◽  
Well Being ◽  
Causal Powers ◽  
New Model ◽  
Service Value ◽  
Natural Entities ◽  
The Standard Model ◽  
To Come

In many cases, rivers, mountains, forests, and other so-called natural entities have value for us because they contribute to our well-being. According to the standard model of such value, they have instrumental or “service” value for us on account of their causal powers. That model tends, however, to come up short when applied to cases when nature contributes to our well-being by virtue of the religious, political, historical, personal, or mythic meanings it bears. To make sense of such cases, a new model of nature’s value is needed, one that registers the fact that nature can have constitutive value for us on account of the role it plays in certain meaningful wholes, such as a person’s sense of who he or she is.

Electroweak Interactions and W, Z Boson Properties

2020 ◽  
Author(s):  
Maarten Boonekamp ◽  
Matthias Schott
Keyword(s):  
Standard Model ◽  
Weak Interaction ◽  
Top Quark ◽  
Quantum Electrodynamics ◽  
Weak Interactions ◽  
Higgs Field ◽  
Nuclear Research ◽  
Strong Interactions ◽  
Weak Boson ◽  
The Standard Model

With the huge success of quantum electrodynamics (QED) to describe electromagnetic interactions in nature, several attempts have been made to extend the concept of gauge theories to the other known fundamental interactions. It was realized in the late 1960s that electromagnetic and weak interactions can be described by a single unified gauge theory. In addition to the photon, the single mediator of the electromagnetic interaction, this theory predicted new, heavy particles responsible for the weak interaction, namely the W and the Z bosons. A scalar field, the Higgs field, was introduced to generate their mass. The discovery of the mediators of the weak interaction in 1983, at the European Center for Nuclear Research (CERN), marked a breakthrough in fundamental physics and opened the door to more precise tests of the Standard Model. Subsequent measurements of the weak boson properties allowed the mass of the top quark and of the Higgs Boson to be predicted before their discovery. Nowadays, these measurements are used to further probe the consistency of the Standard Model, and to place constrains on theories attempting to answer still open questions in physics, such as the presence of dark matter in the universe or unification of the electroweak and strong interactions with gravity.

THE GENERATION MODEL AND THE ORIGIN OF MASS

2009 ◽  
Vol 18 (08) ◽  
pp. 1773-1780 ◽  
Author(s):  
B. A. ROBSON
Keyword(s):  
Standard Model ◽  
Particle Physics ◽  
Alternative Model ◽  
Residual Interaction ◽  
Generation Model ◽  
The Standard Model

The origin of mass in the standard model of particle physics is discussed and some difficulties pointed out. An alternative model, the generation model, will be shown to lead to a different concept of mass: the mass of a body arises from the energy stored in the motion of its constituents, so that if a particle has mass, then it is composite. It is suggested that gravity is a residual interaction arising from the incomplete cancellation of the super-strong color interactions, which bind the fundamental constituents (rishons) of leptons and quarks.

scholarly journals The Philosophy of Presence: From Epistemic Failure to Successful Observation

2005 ◽  
Vol 14 (6) ◽  
pp. 656-667 ◽  
Author(s):  
Luciano Floridi
Keyword(s):  
Standard Model ◽  
Information And Communication Technologies ◽  
Ethical Issues ◽  
Communication Technologies ◽  
Digital Information ◽  
New Model ◽  
The Standard Model ◽  
Information And Communication ◽  
Successful Observation

The paper introduces a new model of telepresence. First, it criticizes the standard model of presence as epistemic failure, showing it to be inadequate. It then replaces it with a new model of presence as successful observation. It further provides reasons to distinguish between two types of presence, backward and forward. The new model is then tested against two ethical issues whose nature has been modified by the development of digital information and communication technologies, namely pornography and privacy, and shown to be effective.

The physics of W ± and Z 0 particles

1986 ◽  
Vol 404 (1827) ◽  
pp. 189-211
Keyword(s):  
Standard Model ◽  
Weak Interaction ◽  
Theoretical Framework ◽  
Current Understanding ◽  
Electroweak Interactions ◽  
Decay Properties ◽  
The Standard Model

The standard model is a theoretical framework describing the behaviour of elementary quarks and leptons as a result of strong and electroweak interactions. Our current understanding of the production and decay properties of the W ± and Z 0 particles, the exchange bosons of the weak interaction, will be described and the striking agreement of these properties with predictions of the standard model will be emphasized.

scholarly journals Progressing Beyond the Standard Model

2013 ◽  
Vol 2013 ◽  
pp. 1-12 ◽  
Author(s):  
B. A. Robson
Keyword(s):  
Standard Model ◽  
Particle Physics ◽  
Alternative Model ◽  
Generation Model ◽  
Beyond The Standard Model ◽  
Basic Assumptions ◽  
Three Generations ◽  
Considerable Success ◽  
The Standard Model

The Standard Model has enjoyed considerable success in describing a whole range of phenomena in particle physics. However, the model is considered incomplete because it provides little understanding of other empirical observations such as, the existence of three generations of leptons and quarks, which apart from mass have similar properties. This paper examines in some detail the basic assumptions upon which the Standard Model is built and compares these with the assumptions of an alternative model, the Generation Model. The Generation Model provides agreement with the Standard Model for those phenomena which the Standard Model is able to describe, but it is shown that the assumptions inherent in the Generation Model allow progress beyond the Standard Model.

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