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Evidence of isospin-symmetry violation in high-energy collisions of atomic nuclei. [PDF]
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Quark-Quark Interaction and the Nonrelativistic Quark Model
Physical Review Letters, 1980This Letter demonstrates that the nonrelativistic approximation breaks down for the lighter hadrons with the conventional $\mathrm{qq}$ one-gluon exchnage potential. This is mainly due to the Coulomb and the short-range hyperfine interactions. To overcome this difficulty, some phenomenological interactions with a long-range spin dependence are proposed.
R. K. Bhaduri, L. E. Cohler, Y. Nogami
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Physical Review D, 1990
The notion that there exists a fundamental quark-lepton symmetry is proposed. To implement this symmetry, leptons (as well as quarks) are assumed to come in three "colors," i.e., the gauge group of the world is assumed to be ${\mathrm{SU}(3)}_{q}\ensuremath{\bigotimes}{\mathrm{SU}(3)}_{l}\ensuremath{\bigotimes}{\mathrm{SU}(2)}_{L}\ensuremath{\bigotimes}
, Foot, , Lew
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The notion that there exists a fundamental quark-lepton symmetry is proposed. To implement this symmetry, leptons (as well as quarks) are assumed to come in three "colors," i.e., the gauge group of the world is assumed to be ${\mathrm{SU}(3)}_{q}\ensuremath{\bigotimes}{\mathrm{SU}(3)}_{l}\ensuremath{\bigotimes}{\mathrm{SU}(2)}_{L}\ensuremath{\bigotimes}
, Foot, , Lew
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The European Physical Journal A, 2008
The scope of a relativistically covariant constituent quark model of baryons based on the BetheSalpeter equation in instantaneous approximation is illustrated by a discussion of various baryon resonance observables such as static electromagnetic moments including a novel calculational procedure form factors and helicity amplitudes, semileptonic decays ...
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The scope of a relativistically covariant constituent quark model of baryons based on the BetheSalpeter equation in instantaneous approximation is illustrated by a discussion of various baryon resonance observables such as static electromagnetic moments including a novel calculational procedure form factors and helicity amplitudes, semileptonic decays ...
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Deuteron photodisintegration and quark models
Physical Review C, 1990We have examined the behavior of the forward-to-backward ratio {ital R} of the cross section for the {sup 2}H({gamma},{ital p}){ital n} reaction. The data show a weak dependence of {ital R} on the photon energy and group around a value of 1.5 which agrees with the prediction of a simple quark model.
, De Sanctis E, , Kaidalov, , Kondratyuk
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The nonrelativistic quark model
Uspekhi Fizicheskih Nauk, 1968CONTENTS Introduction I. The Nonrelativistic Quark Model and the Classification of Hadrons 109 II. Mass Formulas in the Quark Model 110 III. Electromagnetic Properties of Hadrons 112 IV. Weak Interactions of Hadrons 115 V. Scattering of High-energy Particles (Description of the Model) 116 VI.
E M Levin, L L Frankfurt
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Heavy-quark mesons in a relativistic quark model
Physical Review D, 1991The Coulomb-gauge QCD Hamiltonian, augmented by a term which produces linear, scalar confinement is used to generate kernels for the bound-state amplitudes and eigenvalues of heavy quarkonium. The model generates all the correct perturbative physics up to order {alpha}{sub {ital s}}{sup 4} and is applied to the {ital c{bar c}} and {ital b{bar b ...
, Zhang, , Koniuk
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Reports on Progress in Physics, 1978
The quark model is reviewed in a version which includes three colours and at least five quark flavours. Methods are discussed which are applicable to any number of flavours, provided the underlying symmetry is SU(n). The relation between quark bound states and hadron spectroscopy is discussed, and sum rules are given for baryon magnetic moments and ...
A W Hendry, D B Lichtenberg
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The quark model is reviewed in a version which includes three colours and at least five quark flavours. Methods are discussed which are applicable to any number of flavours, provided the underlying symmetry is SU(n). The relation between quark bound states and hadron spectroscopy is discussed, and sum rules are given for baryon magnetic moments and ...
A W Hendry, D B Lichtenberg
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Il Nuovo Cimento A, 1978
We propose a simple model for quark fragmentation in the spirit of the fragmentation model, and use it to predict the behaviour of high-energy inclusive spectra near the phase-space boundary.
M. M. Malone, S.-Y. Lo
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We propose a simple model for quark fragmentation in the spirit of the fragmentation model, and use it to predict the behaviour of high-energy inclusive spectra near the phase-space boundary.
M. M. Malone, S.-Y. Lo
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