In this paper, the hyperspherical harmonics used for solving the three and four body problems in nuclear physics are given. The equations of the adiabatic approximation to hyperspherical harmonic method are derived. S...In this paper, the hyperspherical harmonics used for solving the three and four body problems in nuclear physics are given. The equations of the adiabatic approximation to hyperspherical harmonic method are derived. Some properties of the hypernuclous Heare given as the illustrative example of the application of this method.展开更多
用正则系综蒙特卡罗摸拟方法研究余核破碎问题时,若对碎块位置的平均采取近似的办法,就可以得到余核(RT)系统破碎时的状态方程.本文用数值方法计算了该状态方程,得到了广义压强(P)-体积(V_(RT))平面上的等温曲线;它与Van der Waals气体...用正则系综蒙特卡罗摸拟方法研究余核破碎问题时,若对碎块位置的平均采取近似的办法,就可以得到余核(RT)系统破碎时的状态方程.本文用数值方法计算了该状态方程,得到了广义压强(P)-体积(V_(RT))平面上的等温曲线;它与Van der Waals气体相应等温线有类似之处;相变温度就应该对应于只有一特点的等温曲线的温度.本文又指出,描写破碎问题的统计模型中的两个参数,即破碎温度(T)和破碎体积(V_(RT)),在一定的变化范围内都能符合碎块质量分布数据.也就是说,(T,V_(RT))对不是唯一的.一定温度下与实验符合最好的一对参数,就是相应等温线的两相共存区内压强的极大点.展开更多
We take the model space of the two-baryon system as |NN】+|N△】|πNN】. The model space is separated into P(P<sub>N</sub>+P<sub>△</sub>) space |NN】+|N△】, and Q space|πNN】, and these tw...We take the model space of the two-baryon system as |NN】+|N△】|πNN】. The model space is separated into P(P<sub>N</sub>+P<sub>△</sub>) space |NN】+|N△】, and Q space|πNN】, and these two spaces are coupled by the vertex V<sub>(</sub>z.N△.By eliminating the Q space, the effective interaction in the P space is given展开更多
文摘In this paper, the hyperspherical harmonics used for solving the three and four body problems in nuclear physics are given. The equations of the adiabatic approximation to hyperspherical harmonic method are derived. Some properties of the hypernuclous Heare given as the illustrative example of the application of this method.
文摘用正则系综蒙特卡罗摸拟方法研究余核破碎问题时,若对碎块位置的平均采取近似的办法,就可以得到余核(RT)系统破碎时的状态方程.本文用数值方法计算了该状态方程,得到了广义压强(P)-体积(V_(RT))平面上的等温曲线;它与Van der Waals气体相应等温线有类似之处;相变温度就应该对应于只有一特点的等温曲线的温度.本文又指出,描写破碎问题的统计模型中的两个参数,即破碎温度(T)和破碎体积(V_(RT)),在一定的变化范围内都能符合碎块质量分布数据.也就是说,(T,V_(RT))对不是唯一的.一定温度下与实验符合最好的一对参数,就是相应等温线的两相共存区内压强的极大点.
基金Project supported by the National Natural Science Foundation of China.
文摘We take the model space of the two-baryon system as |NN】+|N△】|πNN】. The model space is separated into P(P<sub>N</sub>+P<sub>△</sub>) space |NN】+|N△】, and Q space|πNN】, and these two spaces are coupled by the vertex V<sub>(</sub>z.N△.By eliminating the Q space, the effective interaction in the P space is given