Volume 41 Issue 6
Jun.  2015
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ZHOU Dan, CUI Erliang, CHEN Huaxing, et al. K-π interaction in finite volume and the K* resonance[J]. Journal of Beijing University of Aeronautics and Astronautics, 2015, 41(6): 1007-1011. doi: 10.13700/j.bh.1001-5965.2014.0411(in Chinese)
Citation: ZHOU Dan, CUI Erliang, CHEN Huaxing, et al. K-π interaction in finite volume and the K* resonance[J]. Journal of Beijing University of Aeronautics and Astronautics, 2015, 41(6): 1007-1011. doi: 10.13700/j.bh.1001-5965.2014.0411(in Chinese)

K-π interaction in finite volume and the K* resonance

doi: 10.13700/j.bh.1001-5965.2014.0411
  • Received Date: 09 Jul 2014
  • Publish Date: 20 Jun 2015
  • Firstly, the K-π interaction in P-wave in a finite volume using the chiral unitary approach was studied, to find an efficient strategy to obtain K-π phase shifts and thus the K* meson properties from energy levels could be obtained in lattice calculations. This method has been applied to provide K-π shifts in infinite space very successfully. Secondly, the energy levels, which are functions of the cubic box size and the pion mass, were evaluated, and the K-π phase shifts were evaluated based on the physical properties of K* meson. Finally, in order to compare with the lattice quantum chromodynamics (QCD) results, non-physical pion masses were adopted to calculate energy levels of the K* meson. Comparison shows that results from approach mentioned above agree well with those from lattice QCD: using pion mass 266 MeV, we obtain two energy levels, 924.0 MeV and 1483.0 MeV respectively, which accord well with the lattice QCD results, 915.6 MeV and 1522.3 MeV respectively.

     

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