@Article{Yang_etal2021,
author="Yang, Z.
and Cao, X.
and Guo, F. K.
and Nieves, J.
and Pavon Valderrama, M.",
title="Strange molecular partners of the Z(c)(3900) and Z(c)(4020)",
journal="Physical Review D",
year="2021",
publisher="Amer Physical Soc",
volume="103",
number="7",
pages="074029--8pp",
abstract="Quantum chromodynamics presents a series of exact and approximate symmetries which can be exploited to predict new hadrons from previously known ones. The Z(c)(3900) and Z(c)(4020), which have been theorized to be isovector D*(D) over bar and D*(D) over bar* molecules [I-G(J(PC)) = 1(-)(1)(+-))], are no exception. Here we argue that from SU(3)-flavor symmetry, we should expect the existence of strange partners of the Z(c){\textquoteright}s with hadronic molecular configurations D*(D) over bar (s) -- D (D) over bar*(s) and D*(D) over bar*(s) (or, equivalently, quark content c (c) over bars (q) over bar, with q = u, d). The quantum numbers of these Z(cs) and Z(cs)* structures would be I(J(P)) = 1/2 (1(+)). The predicted masses of these partners depend on the details of the theoretical scheme used, but they should be around the D*(D) over bar (s) -- D (D) over bar*(s) and D*(D) over bar*(s) thresholds, respectively. Moreover, any of these states could be either a virtual pole or a resonance. We show that, together with a possible triangle singularity contribution, such a picture nicely agrees with the very recent BESIII data of the e(+)e(-) -> K+((Ds-D*0) + D*D--(s)0).",
optnote="WOS:000648581900002",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=4832), last updated on Tue, 01 Jun 2021 07:30:23 +0000",
issn="2470-0010",
doi="10.1103/PhysRevD.103.074029",
opturl="https://arxiv.org/abs/2011.08725",
opturl="https://doi.org/10.1103/PhysRevD.103.074029",
language="English"
}