遮蔽效应 meaning in Chinese
blackout effect
shielding effect
Examples
- It is found that unlike drell - yan model , color dipole approach to drell - yan process needs no k factor and it describes nuclear shadowing effect well in p - a drell - yan process
另外，这一模型也能很好的描述p - a碰撞的drell - yan过程中的遮蔽效应。 - In p - a drell - yan process , the incident quark will experience multiple collisions with different nucleons in the nucleus , which leads to the suppressed drell - yan cross section , in another words , the nuclear shadowing effect
在靶静止系，对于p - a碰撞的drell - yan过程，入射夸克要与原子核中的不同核子发生多次碰撞，使得总的微分截面被压低，这就是遮蔽效应。 - In this paper , the color dipole approach in the target rest frame is presented and the ratio of the drell - yan cross section per nucleon for an 800 gev proton beam incident on a variety of nuclear targets are calculated and the results are compared with fermilab e772 and e866 experimental data . it is shown that without considering the energy loss effect , the calculated results can fit rather well with experimental data
本文介绍了靶静止系中色偶极模型，用色偶极模型计算了800gev质子与原子核碰撞的drell - yan过程的微分截面比，并与e772和e866实验结果进行了比较。发现：不考虑能量损失，只计及p - a碰撞中的遮蔽效应，理论结果就与实验符合的很好。 - Gribov combined the nonrelativistic glauber multiple collisions theory with quantum field theory and fe ynman diagram technique so that relativistic kinematics could be included . based on glauber - gribov theory , b . z . kopeliovich et . al . developed green function method to calculate the shadowing effect in p - a drell - yan process
Gribov将描述高能非相对论的多次碰撞的glauber理论与量子场论和费曼图联系了起来，从而glauber - gribov理论可以描述相对论情况下的多次散射，基于这一理论， b . z . kopeliovich等提出用格林函数方法计算p - a碰撞的drell - yan过程中的遮蔽效应。 - From the model study of the fractal random rough surface , we acquire one dimensional ? two dimensional fractal random rough surface model with fractal theory ; 2 . the calculation of the scattering field of light ; the establishment of the scattering light ’ intensity model , and the number calculation of the intensity distribute ; 3 . the study on the laser radar cross section of one - dimensional fractal rough surface target ; and the number calculation of the scattering intensity of two - dimensional fractal the rough surface target ; 4 . through shadowing effect , we analysis light scattering characteristic of fractal rough surface
本论文利用分形理论得到一维?二维分形随机粗糙表面模型,研究光在一维?二维分形粗糙表面的光散射特性,主要从以下四个方面分析: 1 .自仿射分形随机粗糙表面模型探讨,采用分形理论得到一维?二维分形随机粗糙表面模型; 2 .分形粗糙表面散射光场的计算和粗糙表面散射光强角分布的模型建立和数值计算; 3 .一维分形粗糙表面目标的激光雷达后向散射截面lrcs研究和二维分形粗糙表面目标散射强度数值计算; 4 .引入遮蔽效应分析分形粗糙表面光散射特性。