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Regarding the enigmas ofP-wave meson spectroscopy

1997/03/31 by L. Burakovsky, T. Goldman · 5 citations
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.1103/physrevd.57.2879

published as Phys.Rev.D57:2879-2888,1998 · 22 pages, LaTeX

arxiv created 1997/05/07 · openalex publication_date 1998/03/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

The mass spectrum of P-wave mesons is considered in a nonrelativistic constituent quark model. The results show the common mass degeneracy of the isovector and isodoublet states of the scalar and tensor meson nonets, m(a0)\ensuremath≅m(a2), m(K0*)\ensuremath≅m(K2*), and do not exclude the possibility of a similar degeneracy of the same states of the axial-vector and pseudovector nonets. Current experimental hadronic and \ensuremathτ-decay data suggest, however, a different scenario leading to the a1 meson mass \ensuremath≃1190 MeV and the K1A-K1B mixing angle \ensuremath≃(37\ifmmode±\else\textpm\fi3)\ifmmode^∘\else\textdegree\fi. Possible ss states of the four nonets are also discussed.

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