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Chinese Physics, 2001, Vol. 10(6): 497-500    DOI: 10.1088/1009-1963/10/6/307
THE PHYSICS OF ELEMENTARY PARTICLES AND FIELDS Prev   Next  

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
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
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.
Keywords:  Schwinger-Dyson equation      Bethe-Salpeter equation      electromagnetic form factor  
Received:  27 June 2000      Revised:  26 February 2001      Accepted manuscript online: 
PACS:  13.40.Gp (Electromagnetic form factors)  
  14.40.Aq  
  11.10.St (Bound and unstable states; Bethe-Salpeter equations)  
  14.65.-q (Quarks)  
  14.70.Dj (Gluons)  
Fund: Project supported by the National Natural Science Foundation of China (Grant No. 19875048).

Cite this article: 

Wang Zhi-gang (王志刚), Wan Shao-long (完绍龙), Wang Ke-lin (汪克林) CALCULATION OF KAON ELECTROMAGNETIC FORM FACTOR 2001 Chinese Physics 10 497

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