The qqbar S-wave axial-vector mesons in the covariant U~(12)-scheme

2007/12/05 by Tomohito Maeda, Maeda, Tomohito, Kenji Yamada +5
Physics and Astronomy · #Black Holes and Theoretical Physics #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.48550/arxiv.0712.0658

8 pages; Talk presented at the XII International Conference on Hadron Spectroscpy(Hadron 07), Frascati (Rome), 8-13 October 2007; Some typos were removed

openalex publication_date 2007/12/05 · arxiv created 2008/03/17 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We study the properties of axial vector mesons a1 and b1 as relativistic S-wave states which are predicted in the U~(12)-scheme, through the analyses of their radiative and pionic decays. Specifically, partial widths of the strong a1 (b1) -> rho(omega) pi processes, their D/S-wave amplitude ratios, and radiative transition widths of a1(b1) -> pi gamma processes are calculated by using a simple decay interaction model, and made a comparison with the respective experimental values.

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