@Article{Ikeno_etal2021,
author="Ikeno, N.
and Molina, R.
and Oset, E.",
title="The Z(cs)(3985) as a threshold effect from the (D)over-bar(s)*D + (D)over-bar(s)D* interaction",
journal="Physics Letters B",
year="2021",
publisher="Elsevier",
volume="814",
pages="136120--5pp",
abstract="We study the e(+)e(-) -> K+(D-s*D--(0) + Ds-D*(0)) reaction recently measured at BESIII, from where a new Z(cs) state has been reported. We study the interaction of (D) over bar D-s* with the coupled channels J/psi K-, K*(-)eta(c), Ds-D*(0), D-s*D--(0) by means of an extension to the charm sector of the local hidden gauge approach. We find that the Ds-D*(0) + D-s*D--(0) combination couples to J/psi K- and K*(-)eta(c), but the Ds-D*(0 ) -D-s*D--(0) combination does not. The coupled channels help to build up strength in the Ds-D*(0) + D-s*D--(0) diagonal scattering matrix close to threshold and, although the interaction is not strong enough to produce a bound state or resonance, it is sufficient to produce a large accumulation of strength at the (D) over bar D-s* threshold in the e(+)e(-) -> K+(D-s*D--(0) + Ds-D*(0)) reaction in agreement with experiment.",
optnote="WOS:000621722300029",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=4746), last updated on Thu, 25 Mar 2021 13:08:00 +0000",
issn="0370-2693",
doi="10.1016/j.physletb.2021.136120",
opturl="https://arxiv.org/abs/2011.13425",
opturl="https://doi.org/10.1016/j.physletb.2021.136120",
language="English"
}