@Article{Abreu_etal2023,
author="Abreu, L. M.
and Wang, W. F.
and Oset, E.",
title="Traces of the new alpha(0)(1780) resonance in the J/Psi ->phi K+ K-(K-0 K{\_}(0)) reaction",
journal="European Physical Journal C",
year="2023",
publisher="Springer",
volume="83",
number="3",
pages="243 - 11pp",
abstract="We study the J/Psi ->phi K+ K- decay, looking for differences in the production rates of K+K- or K-0 K-(0) in the region of 1700-1800 MeV, where two resonances appear dynamically generated from the vector-vector interaction. Two resonances are known experimentally in that region, the f(0)(1710) and a new resonance reported by the BABAR and BESIII collaborations. The K K should be produced with I = 0 in that reaction, but due to the different K*(0) and K*(+) masses some isospin violation appears. Yet, due to the large width of the K*, the violation obtained is very small and the rates of K+K- or K-0 K-0 production are equal within 5{\%}. However, we also find that due to the step needed to convert two vectors into K K, a shape can appear in the K K mass distribution that can mimic the a0 production around the K* K* threshold, and is simply a threshold effect.",
optnote="WOS:000957576400004",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=5505), last updated on Sun, 23 Apr 2023 12:10:22 +0000",
issn="1434-6044",
doi="10.1140/epjc/s10052-023-11384-3",
opturl="https://arxiv.org/abs/2301.08058",
opturl="https://doi.org/10.1140/epjc/s10052-023-11384-3",
language="English"
}