@Article{Miyahara_etal2017,
author="Miyahara, K.
and Hyodo, T.
and Oka, M.
and Nieves, J.
and Oset, E.",
title="Theoretical study of the Xi(1620) and Xi(1690) resonances in Xi(c)-> pi(+) MB decays",
journal="Physical Review C",
year="2017",
publisher="Amer Physical Soc",
volume="95",
number="3",
pages="035212--12pp",
abstract="Nonleptonic weak decays of Xi(c) into pi(+) and a meson (M)-baryon (B) final state, MB, are analyzed from the viewpoint of probing S = -2 baryon resonances, i.e., Xi(1620) and Xi(1690), of which spin-parity and other properties are not well known. We argue that the weak decay of Xi(c) is dominated by a single quark-line diagram, preferred by the Cabibbo-Kobayashi-Maskawa coefficient, color recombination factor, the diquark correlation, and the kinematical condition. The decay process has an advantage of being free from meson resonances in the p+ M invariantmass distribution. The invariant mass distribution of the meson-baryon final state is calculated with three different chiral unitary approaches, assuming that the Xi(1620) and Xi(1690) resonances have J(P) = 1/2(-). It is found that a clear peak for the Xi(1690) is seen in the pi Xi and K Lambda spectra. We also suggest that the ratios of the pi Xi, K Lambda, and K Sigma final states are useful to distinguish whether the peak is originated from the Xi(1690) resonance or it is a K Sigma threshold effect.",
optnote="WOS:000399144100008",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=3044), last updated on Fri, 28 Apr 2017 08:38:03 +0000",
issn="2469-9985",
doi="10.1103/PhysRevC.95.035212",
opturl="http://arxiv.org/abs/1609.00895",
opturl="https://doi.org/10.1103/PhysRevC.95.035212",
archivePrefix="arXiv",
eprint="1609.00895",
language="English"
}