2005/09/22 by D. M. Li, De-Min Li, Bing Ma +1
Physics and Astronomy · #Nuclear physics research studies #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph
paper · pdf · doi:10.1140/epja/i2005-10155-6
published as Eur.Phys.J.A26:141-145,2005 · 11 pages, some typos corrected, accepted for publication in Eur. Phys. J. A
arxiv created 2005/09/22 · openalex publication_date 2005/10/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The implications of the f1(1285)-f1(1420) mixing for the K1(3P1)-K1(1P1) mixing angle is investigated. Based on the f1(1285)-f1(1420) mixing angle ∼ 50^∘ suggested from the analysis for a substantial body of data concerning the f1(1420) and f1(1285), the masses of the K1(3P1) and K1(1P1) are determined to be ∼ 1307.35± 0.63 MeV and 1370.03± 9.69 MeV, respectively, which therefore suggests that the K1(3P1)-K1(1P1) mixing angle is about ± (59.55± 2.81)^∘. Also, it is found that the mass of the h^′1(1P1) (mostly of ss) state is about 1495.18± 8.82 MeV. Comparison of the predicted results and the available experimental information of the h1(1380) shows that without further confirmation on the h1(1380), the assignment of the h1(1380) as the ss member of the 1P1 meson nonet may be premature.