论文标题
核心符合电晕：在半中央重型离子碰撞中解释Lambda和反Lambda全球极化的两个组成部分
Core meets corona: a two-component source to explain Lambda and anti-Lambda global polarization in semi-central heavy-ion collisions
论文作者
论文摘要
我们在半中央重离子碰撞中计算了Lambda和抗Lambda全球极化，该碰撞将源建模为由高密度核心和密度较小的电晕组成。我们表明，如果在电晕中产生的兰伯多亚比抗lambdas更多，并且与来自Corona的那些相比，这与来自核心的较少的兰伯达相结合，可能会发生抗Lambda对Lambda偏置的放大效果。这种扩增对于下碰撞能量越来越重要，并定量地说明了由星束能量扫描测得的lambda和抗lambda极化。
We compute the Lambda and anti-Lambda global polarization in semi-central heavy-ion collisions modeling the source as consisting of a high-density core and a less dense corona. We show that when more Lambdas than anti-Lambdas are produced in the corona, and this is combined with a smaller number of Lambdas coming from the core, as compared to those coming from the corona, an amplification effect for the anti-Lambda with respect to that of Lambda polarization can occur. This amplification becomes more important for lower collision energies and quantitatively accounts for the Lambda and anti-Lambda polarizations measured by the STAR beam energy scan.
