Hyperon-nucleon interaction and meson exchange
نویسندگان
چکیده
منابع مشابه
Hyperon - Nucleon Interaction in a Quark Model
A realistic hyperon (Y )-nucleon (N) interaction based on the quark model and the oneboson-exchange potential is constructed. The Nijmegen potential model D with the SU(3) flavor symmetry is modified with a quark exchange interaction at the short-distance, which replaces the short-range repulsive core in the original model. The flavor-spin dependences of the short-range repulsion are qualitativ...
متن کاملInduced Hyperon-Nucleon-Nucleon Interactions and the Hyperon Puzzle.
We present the first ab initio calculations for p-shell hypernuclei including hyperon-nucleon-nucleon (YNN) contributions induced by a similarity renormalization group transformation of the initial hyperon-nucleon interaction. The transformation including the YNN terms conserves the spectrum of the Hamiltonian while drastically improving model-space convergence of the importance-truncated no-co...
متن کاملStrangeness Photoproduction from the Deuteron and Hyperon–nucleon Interaction
Pronounced effects due to final state hyperon–nucleon interaction are predicted in strangeness photoproduction reaction on the deuteron. Use is made of the covariant reaction formalism and the P– matrix approach to the hyperon–nucleon interaction. PACS numbers: 25.20.Lj, 25.30.Rw, 13.60.Le, 13.60.Rj Typeset using REVTEX 1 The first measurement of kaon photoproduction on the deuteron are anticip...
متن کاملCharge Properties of the K Meson and Hyperon Decay Interaction
The question of the AT involved in strange-particle decays is discussed in terms of universal Fermi interactions. The fundamental interactions considered contain b, T&—, as suggested by both experimental and purely theoretical considerations. It is found that by assuming global symmetry in both the pion coupling and the weak coupling one may restrict the AT to —, in a class of processes involve...
متن کاملnucleon hyperon form factors and nucleon strangeness
A crucial input for recent meson hyperon cloud model estimates of the nucleon matrix element of the strangeness current are the nucleon–hyperon–K (NYK) form factors which regularize some of the arising loops. Prompted by new and forthcoming information on these form factors from hyperon–nucleon potential models, we analyze the dependence of the loop model results for the strange–quark observabl...
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ژورنال
عنوان ژورنال: Nuclear Physics A
سال: 1986
ISSN: 0375-9474
DOI: 10.1016/0375-9474(86)90575-0