中国物理B ›› 1996, Vol. 5 ›› Issue (7): 481-492.doi: 10.1088/1004-423X/5/7/001
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卢文发1, 许伯威2, 章豫梅3
LU WEN-FA (卢文发)a, XU BO-WEI (许伯威)b, ZHANG YU-MEI (章豫梅)c
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.
中图分类号: (Nonlinear or nonlocal theories and models)