质心 barycenter; barycentric; baryucenter; canter of mass; center of gravity; center of inertia; center-of-ma system; center-of-mass system; centralcentre of mass; centre of inertia; centroidal; ma center; mass center; the center of mass
心系 cardiac system; large vessels connecting with the heart; the heart connector; the heart system
Symmetry of physical measure in center of mass system 质心系中物理量的对称性
Then the dependences of the cross section on the center - of - mass energy of xcj and baryon are given in the work 离解的截面,给出了截面对x 。和重子的质心系能量的依赖关系。
Since rhic has run at a center - of - mass energy snn = 130 gev , and star collaboration analysed antiproton to proton ratio in mid - rapidity region using the first batch of data 去年, rhic上的star实验组利用质心系能量130agev的an an对撞产生的首批数据,对中心快度区的反质子质子比进行了研究。
In the third part of the thesis , the hijing 2 . 0 is used to generate monte carlo events for au + au minimum bias collisions at rhic energies - y / sjvn = 130 and 200 gev 文章第二部分,我们利用hijing2刀alontecarlo事件产生器产生了rhic能区(质心系能量130agev和200agev )的an十an最小无偏碰撞事件。
The circular jet is consistent with the visible jet which can be observed in experiments . these results are in agreement with the fact that the third jet ( gluon jet ) was historically first discovered in e + e - collisions in the energy region 17 - 30gev 这些结论与历史上在质心系能量区域17 - 30gev第一次在实验中发现第二个喷注(胶子喷注的实验事实是完全一致的。
The relative momentum of two final particles and the cross section are zero at the threshold energy for an endothermic reaction , while the relative momentum of two initial particles is zero and the cross section at the threshold energy for an exothermic reaction is infinite 在吸热反应的阈能处,出射粒子的相对动量以及截面均为零。在放热反应的阈能处,入射粒子的相对动量为零,截面趋于无穷大。由于强子的动量仅提供如此低的质心系能量,强子物质中x 。