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Meson-baryon coupling constants and baryon-baryon interactions
Nuclear Physics A, 1998Abstract We present a chiral-invariant SU( 3 ) Lagrangian describing the interactions of the baryon octet with the lowest-mass meson nonets. Empirical estimates for the strengths of these vertices are given. The nonlinear realization of the chiral symmetry generates pair-meson interaction vertices, the coupling constants for which contain no new free
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Recent soft-core baryon–baryon interactions
Nuclear Physics A, 2005Recent results obtained with the extended-soft-core (ESC) interactions are presented. In a unified manner the ESC-model, describes nucleon-nucleon (NN), hyperon-nucleon (YN), and hyperon-hyperon (YY), using (broken) SU F (3)-symmetry. In the ESC approach to baryon-baryon (BB) the dynamics is derived from (i) one-boson-exchanges (OBE), (ii) two-meson ...
Rijken, T.A., Yamamoto, Y.
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Construction of baryon-baryon clusters on the lattice
AIP Conference Proceedings, 1995We calculate static hadron‐hadron potentials within lattice QCD. We analyze the influence of the valence quark distribution on the shape of the potentials. The content of pointlike singlet clusters is determined.
H. Markum, K. Rabitsch, W. Sakuler
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Unitary symmetry in baryon-baryon scattering
Annals of Physics, 1990Abstract Motivated by a recent suggestion that an SU(3) selection rule may explain the narrow widths of some hypernuclear excitations in the Σ continuum, we re-examine the role of unitary symmetry in low energy baryon-baryon (BB) interactions. A direct examination of the BB scattering data indicates that SU(3) symmetry is broken, but leaves us with ...
Carl B Dover, Herman Feshbach
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High-Spin Baryons. I. The Pion-Baryon-Baryon Vertex
Physical Review, 1966A simple analysis is given for the coupling of a pion to baryons of arbitrary spins and parities. The structure of the vertex depends on a new quantum number called $\ensuremath{\gamma}$ parity. Recursion formulas are given relating high-spin vertices to lower spin vertices.
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Virtual particles and the baryon-baryon system
Il Nuovo Cimento, 1964The1S0 virtual bound state of the nucleon-nucleon system is shown to belong to the 27-dimensional representation of the symmetry scheme based onSU(3) known as the eight-fold way. The other states of this multiplet are derived. Experimental evidence bearing on this state is discussed and it is suggested that if the many complications of baryon number-2 ...
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The Cosmic Baryon and Metal Cycles
Annual Review of Astronomy and Astrophysics, 2020J Christopher Howk, Celine Peroux
exaly
New Superconvergence Relations for Meson-Baryon and Baryon-Baryon Systems
Physical Review, 1968Y. M. Gupta, A. Rangwala
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