title: Nonchiral Enhancement of Scalar Glueball Decay in the Witten-Sakai-Sugimoto Model.
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 η^{'} meson that 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 η mesons, in fairly close agreement with experimental data on the glueball candidate f_{0}(1710).
authors.affiliation: Institut für Theoretische Physik, Technische Universität Wien, Wiedner Hauptstrasse 8-10, A-1040 Vienna, Austria.
authors.forename: Frederic
authors.initials: F
authors.lastname: Brünner
authors.affiliation: Institut für Theoretische Physik, Technische Universität Wien, Wiedner Hauptstrasse 8-10, A-1040 Vienna, Austria.
authors.forename: Anton
authors.initials: A
authors.lastname: Rebhan