中国物理B ›› 1996, Vol. 5 ›› Issue (7): 481-492.doi: 10.1088/1004-423X/5/7/001

• •    下一篇

THE TWO-BOSON SCATTERING PHASE SHIFTS IN THE GENERAL φ6 THEORY WITH THE GAUSSIAN WAVE-FUNCTIONAL APPROACH

卢文发1, 许伯威2, 章豫梅3   

  1. (1)Department of Physics, Fudan University, Shanghai 200433, China; (2)Department of Physics, Shanghai Jiaotong University, Shanghai 200030, China; (3)Department of Physics, Tongji University, Shanghai 200092, China
  • 收稿日期:1995-07-19 出版日期:1996-07-20 发布日期:1996-07-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China.

THE TWO-BOSON SCATTERING PHASE SHIFTS IN THE GENERAL $\phi$6 THEORY WITH THE GAUSSIAN WAVE-FUNCTIONAL APPROACH

LU WEN-FA (卢文发)a, XU BO-WEI (许伯威)b, ZHANG YU-MEI (章豫梅)c   

  1. a Department of Physics, Fudan University, Shanghai 200433, China; b Department of Physics, Shanghai Jiaotong University, Shanghai 200030, China; c Department of Physics, Tongji University, Shanghai 200092, China
  • Received:1995-07-19 Online:1996-07-20 Published:1996-07-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China.

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摘要： The two-particle scattering phase shifts with a λφ4 +ξφ6 interaction are com-puted in (1 + 1) and (2 + 1) dimensions using the Gaussian wave-functional approach.Through numerical analysis, we give the phase-shift curves with respect to the scat-tering energy for most cases of this theory. In (1 + 1) and (2 + 1 ) dimensions, for the symmetry vacuum the phase shifts are positive or negative depending on the signs of the renormalized parameter, while for the asymmetric vacuum the phase shifts are negative.

Abstract: The two-particle scattering phase shifts with a $\lambda\phi^4+\xi\phi^6$ interaction are com-puted in (1 + 1) and (2 + 1) dimensions using the Gaussian wave-functional approach.Through numerical analysis, we give the phase-shift curves with respect to the scat-tering energy for most cases of this theory. In (1 + 1) and (2 + 1 ) dimensions, for the symmetry vacuum the phase shifts are positive or negative depending on the signs of the renormalized parameter, while for the asymmetric vacuum the phase shifts are negative.

中图分类号:  (Nonlinear or nonlocal theories and models)

  • 11.10.Lm