2015/10/28 by Frederic Brünner, Anton Rebhan, Brünner, Frederic +1
Physics and Astronomy · #Black Holes and Theoretical Physics #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High Energy Physics - Theory (hep-th) #Nuclear Theory (nucl-th) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions
paper · doi:10.48550/arxiv.1510.08452
openalex publication_date 2015/10/28 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We discuss recent results on the calculation of glueball decay rates in the Witten-Sakai-Sugimoto model, which favor the f0(1710) meson as a glueball candidate. The flavor asymmetric decay of f0(1710) is frequently attributed to a putative chiral suppression in glueball decays, which is however questionable in view of the large constituent quark masses induced by chiral symmetry breaking. We find that this can be explained by what we call nonchiral enhancement when finite quark masses are included in the holographic model, with good quantitative agreement with experimental data for f0(1710). Assuming the latter to indeed be a nearly pure glueball, the model makes essentially parameter-free and thus falsifiable predictions for its decay rates involving vector mesons and an upper limit on the ηη' decay rate.