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)
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
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.
Feng Xue-Chao(冯学超) and Feng Jun-Lan(冯军兰) The mass of the isodoublet of the 2 1S0 meson nonet revisited 2007 Chinese Physics 16 3297
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