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首页> 外文期刊>Physical review, C >Elliptic flow in ultrarelativistic collisions with light polarized nuclei
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Elliptic flow in ultrarelativistic collisions with light polarized nuclei

机译:与光极化核的超焦论碰撞中的椭圆流

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摘要

Estimates for elliptic flow in collisions of polarized light nuclei with spin j >= 1 with a heavy nucleus are presented. In such collisions, the azimuthal symmetry is broken via polarization of the wave function of the light nucleus, resulting in a nonzero one-body elliptic flow coefficient evaluated relative to the polarization axis. For the case of the deuteron we carry out the Glauber Monte Carlo simulations of the initial state followed with hydrodynamics to obtain the elliptic flow coefficient. A careful statistical error analysis is presented, showing that the effect could be easily spotted in future experiments with data samples of sizes as low as approximate to 10(4). We also present estimates of the effect for collisions with other light j >= 1 nuclei, involving experimentally well-known features, such as their quadrupole moments and the charge radii. We find the one-body elliptic flow coefficient in the range from approximate to 0.5% for collisions with a deuteron to approximate to 5% for collisions with a B-10 nucleus, with the relative error being small for typical data sample multiplicities. Prospects of addressing the issue in the upcoming fixed-target experiments at the CERN Large Hadron Collider are discussed.
机译:介绍了Zeripic Light Nuclei与旋转j> 1的偶尔流动的估计,并用重细胞核施用。在这种碰撞中,通过光核的波函数的偏振来破坏方位角对称性,导致相对于偏振轴评估的非零一体椭圆流量系数。对于Deuteron的情况,我们执行初始状态的Glauber Monte Carlo模拟,然后具有流体动力学,获得椭圆流量系数。提出了仔细的统计误差分析,表明可以在未来的实验中容易地发现效果,该数据样本的尺寸为低至10(4)。我们还呈现了与其他光J> 1个核的碰撞效果的估计,涉及实验众所周知的特征,例如它们的四极矩和电荷半径。我们在与氘核的碰撞范围内发现一个体椭圆流量系数为0.5%,以近似与B-10核的碰撞的5%,相对误差对于典型的数据采样量增加。讨论了在即将到来的CERN大型特罗龙撞机的即将到来的固定目标实验中解决问题的前景。

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