对心碰撞 meaning in English
central collision
central impact
centrical impact
Examples
- A strong pt dependence in u2 is observed up to 2 . 0 gev / c
而在实验中大量存在的是b 0的非对心碰撞。 - The value of w2 as a function of transverse momentum pt and collision centrality is presented for both particles up to ~ 3 . 0 gev / c
我们称碰撞参数b 0的碰撞为对心碰撞。这类碰撞具有初始的方位角对称性。 - The transition kinetic energy and the remnant kinetic energy of head - on collision system , along with the condition and result of the transition and transmission of kinetic energy are discussed and some examples of efficiency of collision are given
摘要详细讨论了对心碰撞系统的转换动能和剩馀动能，讨论了动能转换和传递的条件及结果，并举出有关应用实例。 - In the second part of this dissertation ( chapter 6 and chapter 7 ) , it is demonstrated that in low multiplicity sample , the increase of the fluctuation of event factorial moments with the diminishing of phase space scale , " erraticity " , are dominated by the statistical fluctuations
在非对心碰撞中，初始坐标空间中的方位角不对称性将导致末态粒子相对于“反应平面”的角依赖性。微观上讲，末态动量空间的大的各向异性来源于碰撞最初阶段的大量的再散射。 - Particle ratios embody the chemical equilibrium driven by inelastic interaction during rapid expansion when the temperature decreases in the colliding system , the measured hadron ratios provide the chemical composition of the fireball at the chemical freeze - out point and access the baryon transporter stopping ) for the initial conditions at early stage of the collisions . in this paper , we study the anti - proton to proton ratio from ig7au + 197 au collisions , analyzing p / p ratio as functions of rapidity , transverse momentum and centrality at ^ / saw = 200gev and the dependence on the center of mass energy of p / p ratio , compared with the experimental results . it shows that the p / p ratio has n ' t obvious dependence on rapidity for mid - rapidity , but shows a slight increase trend with pt increasing in the range of pt < 1gev / c for mini - bias or central collisions , and rqmd shows a more remarkable correlation between p / p ratio and centrality than experiments do at snn = 200gev
研究表明：对厂在中心快度区没有明显的快度依赖性，在越靠近边缘快度区， p p呈下降趋势；在对心碰撞或者最小无偏事件中， p p在低横动量区域随着横动量的升高而增大； p随着碰撞对心度的比实验结果表现出稍强的随对心度增大而减小的趋势，尤其是有再散射ujrqmd模型；在中心快度区， p p随着碰撞的质心能量的提高而快速的增大，与实验结果一致；在低能，有末态粒子再散射的d较好的预言了的：但是在mc能量下，有末态粒子在散射的d所预言的p p值比实验值要小。