| THE TWO-BOSON SCATTERING PHASE SHIFTS IN THE GENERAL φ6 THEORY WITH THE GAUSSIAN WAVE-FUNCTIONAL APPROACH |
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| 引用本文： | 卢文发,许伯威,章豫梅.THE TWO-BOSON SCATTERING PHASE SHIFTS IN THE GENERAL φ6 THEORY WITH THE GAUSSIAN WAVE-FUNCTIONAL APPROACH[J].物理学报(海外版),1996,5(7):481-492. |
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| 作者姓名： | 卢文发 许伯威 章豫梅 |
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| 作者单位： | (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 |
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| 基金项目： | 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.
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| 收稿时间： | 1995-07-19 |
THE TWO-BOSON SCATTERING PHASE SHIFTS IN THE GENERAL $\phi$6 THEORY WITH THE GAUSSIAN WAVE-FUNCTIONAL APPROACH |
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| Institution: | Department of Physics, Fudan University, Shanghai 200433, China; Department of Physics, Shanghai Jiaotong University, Shanghai 200030, China; Department of Physics, Tongji University, Shanghai 200092, China |
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| 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. |
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