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- W4301342648 abstract "Here we present preliminary results for the evaluation of the electromagnetic form factors for the lowest-lying negative-parity, spin-$frac{1}{2}$ nucleons, namely the $S_{11}(1535)$ and $S_{11}(1650)$, through the use of the variational method. We find that the characteristics of the electric form factor, $G_{E}$, are similar between these states, however significant differences are observed between the quark-sector contributions to the magnetic form factor, $G_{M}$. Within simple constituent quark models, these states are understood to be admixtures of $s=frac{1}{2}$ and $s=frac{3}{2}$ states coupled to orbital angular momentum $ell = 1$. Our results reveal a qualitative difference in the manner in which the singly-represented quark sector contributes to these baryon magnetic form factors." @default.
- W4301342648 created "2022-10-05" @default.
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- W4301342648 date "2014-12-14" @default.
- W4301342648 modified "2023-10-13" @default.
- W4301342648 title "Electromagnetic matrix elements for negative parity nucleons" @default.
- W4301342648 doi "https://doi.org/10.48550/arxiv.1412.4432" @default.
- W4301342648 hasPublicationYear "2014" @default.
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