@Article{Aceti_etal2014,
author="Aceti, F.
and Dai, L. R.
and Geng, L. S.
and Oset, E.
and Zhang, Y.",
title="Meson-baryon components in the states of the baryon decuplet",
journal="European Physical Journal A",
year="2014",
publisher="Springer",
volume="50",
number="3",
pages="57 - 11pp",
abstract="We apply an extension of the Weinberg compositeness condition on partial waves of L = 1 and resonant states to determine the weight of the meson-baryon component in the Delta(1232) resonance and the other members of the baryon decuplet. We obtain an appreciable weight of pi N in the Delta(1232) wave function, of the order of 60{\%}, which looks more natural when one recalls that experiments on deep inelastic and Drell Yan give a fraction of pi N component of 34{\%} for the nucleon. We also show that, as we go to higher energies in the members of the decuplet, the weights of the meson-baryon component decrease and they already show a dominant part for a genuine, non-meson-baryon, component in the wave function. We write a section to interpret the meaning of the Weinberg sum rule when it is extended to complex energies and another one for the case of an energy-dependent potential.",
optnote="WOS:000333108700001",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=1728), last updated on Thu, 17 Apr 2014 11:05:14 +0000",
issn="1434-6001",
doi="10.1140/epja/i2014-14057-2",
opturl="http://arxiv.org/abs/arXiv:1301.2554",
opturl="https://doi.org/10.1140/epja/i2014-14057-2",
archivePrefix="arXiv",
eprint="arXiv:1301.2554",
language="English"
}