Journal ArticleDOI
Particle mixing and charge asymmetric nuclear forces
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In this article, the effect of ϱω and πη mixing on the 1 S 0 NN potential was investigated and it was found that the ϱα contribution dominates and leads to an n-n potential which is more attractive than the p-p potential.About:
This article is published in Nuclear Physics.The article was published on 1975-09-22. It has received 63 citations till now.read more
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Recent Progress and New Challenges in Isospin Physics with Heavy-Ion Reactions
TL;DR: In this paper, the authors review the major progress achieved during the last decade in isospin physics with heavy ion reactions and discuss future challenges to the most important issues in this field.
Journal ArticleDOI
Charge symmetry, quarks and mesons
TL;DR: In this article, the authors reviewed the data and theory relevant to understand charge symmetry breaking in hadronic mass spittings, interactions and decay rates; nucleon-nucleon interactions; nuclear reactions; and binding energies of mirror nuclei.
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$\rho - \omega$ mixing, vector meson dominance and the pion form-factor
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Phenomenological aspects of isospin violation in the nuclear force
TL;DR: In this paper, a one-loop analysis of the isospin-violating πNN coupling constants is performed using chiral perturbation theory, and meson-mixing models and the 3He3H mass difference are also discussed in the context of naturalness.
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Three-Body Systems in Nuclear Physics
TL;DR: In this paper, the general properties of three-particle states are discussed; particular reference is made to the theory of final-state interactions and to the Efimov effect.
References
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Book
Relativistic Quantum Mechanics
James D. Bjorken,Sidney D. Drell +1 more
TL;DR: In this paper, the authors developed a propagator theory of Dirac particles, photons, and Klein-Gordon mesons and per-formed a series of calculations designed to illustrate various useful techniques and concepts in electromagnetic, weak, and strong interactions.
Journal ArticleDOI
Local phenomenological nucleon-nucleon potentials
TL;DR: Hard (infinitely hard) and soft (Yukawa) core potentials have been fit to Yale and Livermore phase parameters and low-energy data as discussed by the authors, and it is found that neither the short-range behavior of the potentials nor the central-to-tensor ratio in the 3 S 1 - 3 D 1 state is well determined by the data.
Journal ArticleDOI
Chiral SU ( 3 ) ⊗ SU ( 3 ) as a Symmetry of the Strong Interactions
TL;DR: In this article, it was shown that the strong interactions are almost invariant under the group of pseudoscalar octet, i.e., the octet is realized by eight Goldstone bosons.
Journal ArticleDOI
Departures from the Eightfold Way: Theory of Strong Interaction Symmetry Breakdown
Abstract: We consider the three kinds of departure from exact unitary symmetry: medium-strong interactions which leave only isospin and hypercharge as good symmetries, electromagnetism, and weak interactions. We postulate the existence of an octet of scalar mesons that give the possibility of symmetry-breaking tadpole diagrams. Our fundamental dynamical assumption---that symmetry-violating processes are dominated by symmetry-breaking tadpole diagrams---gives an immediate explanation of the success of two empirical laws: the Gell-Mann-Okubo mass formulas and the nonleptonic $\ensuremath{\Delta}I=\frac{1}{2}$ rules. Moreover, including tadpole diagrams and some other electromagnetic corrections, we calculate the six electromagnetic mass splittings of mesons and baryons in terms of a single unknown parameter correctly to within 0.5 MeV.