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有限体积内的K-π相互作用和K*共振态

周丹 崔二亮 陈华星 耿立升 沈成平

周丹, 崔二亮, 陈华星, 等 . 有限体积内的K-π相互作用和K*共振态[J]. 北京航空航天大学学报, 2015, 41(6): 1007-1011. doi: 10.13700/j.bh.1001-5965.2014.0411
引用本文: 周丹, 崔二亮, 陈华星, 等 . 有限体积内的K-π相互作用和K*共振态[J]. 北京航空航天大学学报, 2015, 41(6): 1007-1011. doi: 10.13700/j.bh.1001-5965.2014.0411
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)

有限体积内的K-π相互作用和K*共振态

doi: 10.13700/j.bh.1001-5965.2014.0411
基金项目: 中央高校基本科研业务费专项资金(YWF-14-WLXY-013,YWF-14-WLXY-014,YWF-14-WLXY-018)
详细信息
    作者简介:

    周丹(1989—),女,河北邢台人,博士研究生,danxueqing@126.com

    通讯作者:

    陈华星(1982—),男,贵州安顺人,副教授,hxchen@buaa.edu.cn,主要研究方向为粒子物理、理论物理.

  • 中图分类号: O582.2

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

  • 摘要: 为了找到一种获得K-π相移的有效方法,并从格点计算得到的能级中获取K*介子的性质,首先使用手征幺正理论研究了有限体积中的PK-π相互作用.这种方法曾在无限空间中成功地应用于计算K-π相移.然后用这种方法计算得到作为立方体盒子尺寸和π介子质量的函数的PK-π散射振幅的能级;并计算了K-π散射的相移以及基于该结果的K*介子的物理性质.最后,为了和格点量子色动力学(QCD)计算结果进行比较,又在π介子取非物理质量时计算得到了K*介子的能级.比较表明:文中方法与格点QCD得到的结果基本一致.当介子能量为266 MeV时,本文方法得到的两个能级分别为924.0 MeV和1483.0 MeV,其结果与格点QCD得到的915.6 MeV和1522.3 MeV的两个能级符合得很好.

     

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出版历程
  • 收稿日期:  2014-07-09
  • 网络出版日期:  2015-06-20

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