中国物理B ›› 2007, Vol. 16 ›› Issue (11): 3297-3299.doi: 10.1088/1009-1963/16/11/025

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The mass of the isodoublet of the 2 1S0 meson nonet revisited

冯学超, 冯军兰   

  • 出版日期:2007-11-20 发布日期:2007-11-20

The mass of the isodoublet of the 2 1S0 meson nonet revisited

Feng Xue-Chao(冯学超)a)† and Feng Jun-Lan(冯军兰)b)   

  1. a Department of Technology and Physics, Zhengzhou University of Light Industry, Zhengzhou 450002, China; b College of Science, Zhongyuan Institute of Technology, Zhengzhou 450007, China
  • Online:2007-11-20 Published:2007-11-20

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Abstract: In the $q\bar{q}$ quark model, the states $\pi$(1300), $\eta$(1295) and $\eta$(1475) are assigned as the 21S0 meson nonet. The mass of the isodoublet remains interesting and needs further confirmation in experiments. This paper employs the phenomenological trajectory on the (N, M2)-plot and meson–meson mixing methods to calculate the mass of this state, the calculated results are 1341 MeV and 1311.58 ± 59 MeV respectively. These predictions can be compared with
experiments in the future.

Key words: meson–meson mixing, isodoublet

中图分类号:  (Phenomenological quark models)

  • 12.39.-x
11.30.Ly (Other internal and higher symmetries) 11.30.Qc (Spontaneous and radiative symmetry breaking)