中国物理B ›› 2002, Vol. 11 ›› Issue (11): 1140-1144.doi: 10.1088/1009-1963/11/11/309

• THE PHYSICS OF ELEMENTARY PARTICLES AND FIELDS • 上一篇    下一篇

Heavy meson spectra for heavy quark potential in quantum chromodynamics with dilaton

陈洪1, 杨兴华1, 姜焕清2   

  1. (1)Department of Physics, Southwest China Normal University, Chongqing 400715, China; (2)Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100039, China
  • 收稿日期:2002-01-20 修回日期:2002-07-14 出版日期:2005-06-12 发布日期:2005-06-12
  • 基金资助:
    Project supported in part by the National Natural Science Foundation of China (Grant No 10147208).

Heavy meson spectra for heavy quark potential in quantum chromodynamics with dilaton

Chen Hong (陈洪)a, Yang Xing-Hua (杨兴华)a, Jiang Huan-Qing (姜焕清)b   

  1. a Department of Physics, Southwest China Normal University, Chongqing 400715, China; b Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100039, China
  • Received:2002-01-20 Revised:2002-07-14 Online:2005-06-12 Published:2005-06-12
  • Supported by:
    Project supported in part by the National Natural Science Foundation of China (Grant No 10147208).

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摘要： For heavy meson systems, we study the heavy quark potential, which emerges from the effective dilaton－gluon coupling inspired from the superstring theory. We put emphasis on the new confinement generating mechanism of this potential through the investigation of the spin-averaged energy levels of the heavy meson systems. By using a unified approach to the solutions of the Schr?dinger and the spinless Salpeter equations, we can examine in a realistic way the effects of using a relativistic kinetic energy. The obtained results agree favourably with other predictions, and the relativistic equation can better account for the observed energy levels.

Abstract: For heavy meson systems, we study the heavy quark potential, which emerges from the effective dilaton－gluon coupling inspired from the superstring theory. We put emphasis on the new confinement generating mechanism of this potential through the investigation of the spin-averaged energy levels of the heavy meson systems. By using a unified approach to the solutions of the Schr?dinger and the spinless Salpeter equations, we can examine in a realistic way the effects of using a relativistic kinetic energy. The obtained results agree favourably with other predictions, and the relativistic equation can better account for the observed energy levels.

Key words: dilaton, quark potential, heavy meson

中图分类号:  (Quark-gluon plasma)

  • 12.38.Mh
11.25.-w (Strings and branes) 03.65.Ge (Solutions of wave equations: bound states) 14.40.-n (Mesons) 12.39.Pn (Potential models)