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arXiv · 1504.05815

Nonchiral enhancement of scalar glueball decay in the Witten-Sakai-Sugimoto model

Frederic Brünner·Anton Rebhan
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Abstract

We estimate the consequences of finite masses of pseudoscalar mesons on the decay rates of scalar glueballs in the Witten-Sakai-Sugimoto model, a top-down holographic model of low-energy QCD, by extrapolating from the calculable vertex of glueball fields and the eta' meson which follows from the Witten-Veneziano mechanism for giving mass to the latter. Evaluating the effect on the recently calculated decay rates of glueballs in the Witten-Sakai-Sugimoto model, we find a strong enhancement of the decay of scalar glueballs into kaons and eta mesons, in fairly close agreement with experimental data on the glueball candidate f0(1710).

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Frederic Brünner, Anton Rebhan. 2015-04-22. Nonchiral enhancement of scalar glueball decay in the Witten-Sakai-Sugimoto model. https://doi.org/10.1103/physrevlett.115.131601

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