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arXiv · 1501.00522

The internal structures of the nucleon resonances $N(1875)$ and $N(2120)$

Jun He
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Abstract

A nucleon resonance with spin-parity $J^P=3/2^-$ and mass about 2.1 GeV is essential to reproduce the photoproduction cross sections for $Λ(1520)$ released by the LEPS and CLAS Collaborations. It can be explained as the third nucleon resonance state $[3/2^-]_3$ in the constituent quark model so that there is no position to settle the $N(1875)$ which is listed in the PDG as the third $N3/2^-$ nucleon resonance. An interpretation is proposed that the $N(1875)$ is from the interaction of a decuplet baryon $Σ(1385)$ and a octet meson $K$, which is favored by a calculation of binding energy and decay pattern in a Bethe-Salpeter approach.

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Jun He. 2015-01-03. The internal structures of the nucleon resonances $N(1875)$ and $N(2120)$. https://doi.org/10.1103/physrevc.91.018201

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