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arXiv 1802.02800nucl-th
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氘核极化特性的波函数和非对称性的解析形式

Analytical forms of the wave function and the asymmetry for polarization characteristics of the deuteron

V. I. Zhaba

摘要:

本文评述了氘波函数在坐标表象中的基本解析形式。分析了在坐标原点附近的渐近行为。本文采用指数函数r^n与指数项之和Ai*exp(-ai*r3)的乘积的新解析形式来计算氘核的极化特性。数值计算了Nijmegen群的真实唯象势Reid 93。本文描述了氘核矢量t10、t11和张量t20、t21、t22极化的角不对称性的结果。随着角不对称性,动量不对称性的氘核矢量t1 i极化也被描述。本文研究了坐标表象中的近似对张量极化t20计算结果的影响。在70度处进行值t20的比较,以将四个不同的近似值应用于相同的NN-电势Reid 93。当接收到的理论值t20与世界合作和评论的实验数据进行比较时,观察到动量值p=1-4fm-1的区域的良好协调。本文用不变振幅法计算了后向弹性dp散射张量分析功率T20和极化转移K_0的自旋观测量。并与实验数据进行了比较。在较宽的动量p和散射角范围内,给出了表征g(d,pi-)pp反应中氘核光生负π介子的张量分析幂T20和T22的不对称性。观察到关于90 °角的值T20和T22的对称性。矢量Px和张量Pxz偏振的比率R的特征在于角度不对称性。

英文摘要:

The basic analytical forms of the deuteron wave function (DWF) in a coordinate representation have been reviewed. The asymptotic behaviour of DWF near the origin of coordinates has been analyzed. New analytical forms of DWF as a product of the exponential function r^n and the sum of the exponential terms Ai*exp(-ai*r3) are applied for the calculation of the polarization characteristics of the deuteron. Numerical calculations have been done for realistic phenomenological potential of Nijmegen groups, Reid93. In the paper, the results of the angular asymmetry for deuteron vector t10, t11 and tensor t20, t21, t22 polarizations are described. Along with the angular asymmetry, the momentum asymmetry for deuteron vector t1i polarizations is described too. The influence of DWF approximation in a coordinate representation on the subsequent results of the calculations of the tensor polarization t20 is investigated. A comparison of values t20 is made at 70 degree if to apply four different DWF approximations to the same NN-potential Reid93. When the received theoretical values t20 are compared with the experimental data of world collaborations and reviews, a good coordination for the area of values momentum p=1-4fm-1 is observed. Using the method of invariant amplitude, spin observables in backward elastic dp-scattering-tensor analyzing power T20 and polarization transfer K0 have been calculated. The values of K0 and correlation K0-T20 are compared with experimental data. In a wide range of momentums p and scattering angles, the asymmetry for the tensor analyzing power T20 and T22 has been presented, which characterizes the photoproduction of negative pi- meson from deuteron in reaction g(d, pi-)pp. A symmetry of values T20 and T22 concerning a 90 angle is observed. The ratio R for the vector Px and tensor Pxz polarizations is characterized by angular asymmetry....

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