BRANCHING RATIOS OF THE PSEUDOSCALAR GLUEBALL AND ITS FIRST EXCITED STATE

被引：0

作者：

Eshraim, Walaa I. ^{[1
]}

机构：

[1] New York University Abu Dhabi Saadiyat Island, P.O. Box 129188, Abu Dhabi

来源：

Acta Physica Polonica B, Proceedings Supplement | 2024年 / 17卷 / 06期

关键词：

Compendex;

D O I：

10.5506/APhysPolBSupp.17.6-A4

中图分类号：

学科分类号：

摘要：

We study the pseudoscalar glueball and its first excited state by constructing three interaction Lagrangians. One produces the two- and three-body decays of the pseudoscalar glueball, JPC = 0−+, into (axial-)vector mesons, scalar glueball, and (pseudo)scalar mesons. The other two describe the two- and three-body decays of the first excited pseudoscalar glueball, JPC = 0∗−+, into (pseudo)scalar mesons, a scalar, and a pseudoscalar glueball. We compute the decay widths by fixing the mass of the ground state of a pseudoscalar glueball to 2.6 GeV and of its first excited state to 3.7 GeV, as predicted by lattice QCD in the quenched approximation. We present the results as branching ratios with a parameter-free prediction, which are interesting and relevant for the PANDA experiment at the upcoming FAIR facility experiment and running BESIII and Belle-II experiments. © 2024 Jagiellonian University. All rights reserved.

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