dorsal/arxiv
View SchemaStrangeness in the proton and N*(1535)
| Authors | B. S. Zou |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0610062 |
| URL | https://arxiv.org/abs/nucl-th/0610062 |
| DOI | 10.1016/j.nuclphysa.2007.03.158 |
| Journal | Nucl.Phys.A790:110-115,2007 |
Abstract
The newest progress on the study of the strangeness in the proton and in the lowest negative parity nucleon excited state $N^*(1535)$ is reviewed. Implications on the internal quark structure of the proton, $N^*(1535)$ and other baryons are discussed. The diquark cluster picture for the 5-quark components in baryons gives a natural explanation not only to the empirical indications for a positive strangeness magnetic moment $\mu_s$ and positive strangeness radius of the proton but also the longstanding mass-reverse problem of $N^*(1535)$, $N^*(1440)$ and $\Lambda^*(1405)$ resonances as well as the unusual decay pattern of the $N^*(1535)$ resonance. Evidence for possible existence of $N^*(1535)$'s ${1/2}^-$ SU(3) nonet partners in this picture is pointed out, and suggestion is made to search for these $1/2^-$ hyperon excited states under the well known $\Sigma^*(1385)$, $\Lambda^*(1520)$ and $\Xi^*(1530)$ peaks in various reactions.
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"abstract": "The newest progress on the study of the strangeness in the proton and in the\nlowest negative parity nucleon excited state $N^*(1535)$ is reviewed.\nImplications on the internal quark structure of the proton, $N^*(1535)$ and\nother baryons are discussed. The diquark cluster picture for the 5-quark\ncomponents in baryons gives a natural explanation not only to the empirical\nindications for a positive strangeness magnetic moment $\\mu_s$ and positive\nstrangeness radius of the proton but also the longstanding mass-reverse problem\nof $N^*(1535)$, $N^*(1440)$ and $\\Lambda^*(1405)$ resonances as well as the\nunusual decay pattern of the $N^*(1535)$ resonance. Evidence for possible\nexistence of $N^*(1535)$\u0027s ${1/2}^-$ SU(3) nonet partners in this picture is\npointed out, and suggestion is made to search for these $1/2^-$ hyperon excited\nstates under the well known $\\Sigma^*(1385)$, $\\Lambda^*(1520)$ and\n$\\Xi^*(1530)$ peaks in various reactions.",
"arxiv_id": "nucl-th/0610062",
"authors": [
"B. S. Zou"
],
"categories": [
"nucl-th"
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"doi": "10.1016/j.nuclphysa.2007.03.158",
"journal_ref": "Nucl.Phys.A790:110-115,2007",
"title": "Strangeness in the proton and N*(1535)",
"url": "https://arxiv.org/abs/nucl-th/0610062"
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