1992/11/12 by S. Kumano, Kumano, S.
Physics and Astronomy · #Dark Matter and Cosmic Phenomena #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Nuclear Theory (nucl-th) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph #nucl-th
paper · pdf · doi:10.48550/arxiv.nucl-th/9211008
11 pages, LATEX file (without figures), Talk given at the International Workshop on Flavor and Spin in Hadronic and Electromagnetic Interactions Torino, Italy, September 21-23, 1992
arxiv created 1992/11/12 · openalex publication_date 1992/11/12 · arxiv updated 2009/11/30 · openalex created_date 2024/04/11 · openalex updated_date 2026/07/28
We show that ϕ radiative decays into scalar mesons [f0(975), a0(980)≡ S] can provide important clues on the internal structures of these mesons. Radiative decay widths vary widely: B.R.=10-4-10-6 depending on the substructures (q q, qq q q, K K, glueball). Hence, we could discriminate among various models by measuring these widths at future ϕ factories. The understanding of these meson structures is valuable not only in hadron spectroscopy but also in nuclear physics in connection with the widely-used but little-understood σ meson. We also find that the decay ϕ→ Sγ→ K0 K0γ is not strong enough to pose a significant background problem for studying CP violation via ϕ→ K0 K0 at the ϕ factories.