Singlet-octet-glueball mixing of scalar mesons

被引：18

作者：

Klempt, E. ^{[1
]}

Sarantsev, A., V ^{[1
,2
]}

机构：

[1] Univ Bonn, Helmholtz Inst Strahlen & Kernphys, Nussallee 14-16, D-53115 Bonn, Germany

[2] NRC Kurchatov Inst, PNPI, Gatchina 188300, Russia

来源：

PHYSICS LETTERS B | 2022年 / 826卷

基金：

俄罗斯科学基金会;

关键词：

F(0)(1500); F(0)(1370); DECAY;

D O I：

10.1016/j.physletb.2022.136906

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The mixing angles between scalar isoscalar resonances and a scalar glueball are determined from their decays into two pseudoscalar mesons. For f(0)(1370) and f(0)(1500), at most a small glueball component is admitted by the data. The decay modes of f(0)(1710), f(0)(1770), f(0)(2020), and f(0)(2100) require significant glueball fractions. Above this mass, the errors in the decay frequencies become too large to extract a glueball component. The summation of all observed glueball fractions up to 2100 MeV yields (78 +/- 18)%. The glueball fractions as function of the mass are consistent with a scalar glueball at 1865 MeV and a width of 370 MeV as suggested by a measurement of the yield of scalar isoscalar mesons in radiative J/Psi decays. (c) 2022 The Authors. Published by Elsevier B.V.This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). Funded by SCOAP(3).

引用

页数：6

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