中国物理B ›› 2001, Vol. 10 ›› Issue (6): 497-500.doi: 10.1088/1009-1963/10/6/307

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CALCULATION OF KAON ELECTROMAGNETIC FORM FACTOR

王志刚1, 汪克林2, 完绍龙3   

  1. (1)Center for Nonlinear Science, University of Science and Technology of China, Hefei 230026, China; (2)Center for Nonlinear Science, University of Science and Technology of China, Hefei 230026, China; Department of Astronomy and Applied Physics, University of Science and Technology of China, Hefei 230026, China; (3)Department of Astronomy and Applied Physics, University of Science and Technology of China, Hefei 230026, China
  • 收稿日期:2000-06-27 修回日期:2001-02-26 出版日期:2001-06-15 发布日期:2005-06-12
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 19875048).

CALCULATION OF KAON ELECTROMAGNETIC FORM FACTOR

Wang Zhi-gang (王志刚)a, Wan Shao-long (完绍龙)b, Wang Ke-lin (汪克林)ab   

  1. a Center for Nonlinear Science, University of Science and Technology of China, Hefei 230026, China; b Department of Astronomy and Applied Physics, University of Science and Technology of China, Hefei 230026, China
  • Received:2000-06-27 Revised:2001-02-26 Online:2001-06-15 Published:2005-06-12
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 19875048).

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摘要： The kaon meson electromagnetic form factor is calculated in the framework of coupled Schwinger-Dyson and Bethe-Salpeter formulation in simplified impulse approximation (dressed vertex) with modified flat-bottom potential, which is a combination of the flat-bottom potential taking into consideration the infrared and ultraviolet asymptotic behaviours of the effective quark-gluon coupling. All the numerical results give a good fit to experimental values.

Abstract: The kaon meson electromagnetic form factor is calculated in the framework of coupled Schwinger-Dyson and Bethe-Salpeter formulation in simplified impulse approximation (dressed vertex) with modified flat-bottom potential, which is a combination of the flat-bottom potential taking into consideration the infrared and ultraviolet asymptotic behaviours of the effective quark-gluon coupling. All the numerical results give a good fit to experimental values.

Key words: Schwinger-Dyson equation, Bethe-Salpeter equation, electromagnetic form factor

中图分类号:  (Electromagnetic form factors)

  • 13.40.Gp
11.10.St (Bound and unstable states; Bethe-Salpeter equations) 14.65.-q (Quarks) 14.70.Dj (Gluons)