论文标题
对彩色玻璃冷凝物中质子核碰撞中方位角不对称的有限宽作用
Finite width effects on the azimuthal asymmetry in proton-nucleus collisions in the Color Glass Condensate
论文作者
论文摘要
我们对颜色玻璃冷凝物框架内的$ p $ a碰撞产生的中央迅速差的两个粒子方位关系进行数值分析。我们将标准计算扩展到包括依赖密集靶标的有限纵向宽度所造成的亚蓝下校正。出于实际原因，我们仅考虑近代到接头的校正，而不是为包含两个Gluon生产横截面的全阶表达式使用。我们表明，我们在两个Gluon产量中解释的次骨术语均导致偶数和奇数谐波，而后者在标准的彩色玻璃冷凝水计算中不存在，以艾科尼尔精度执行。我们的分析证实了下降效应随着碰撞能量的增加而消失的，如预期的那样。
We perform a numerical analysis of the two particle azimuthal correlations at central rapidities generated in $p$A collisions within the framework of the Color Glass Condensate. We extend the standard computations to include the subeikonal corrections which stem from considering the finite longitudinal width of the dense target. For practical reasons, we only consider the next-to-next-to-eikonal corrections instead of using the all-order expressions for the inclusive two gluon production cross section. We show that the subeikonal terms that we account for in the two gluon yields contribute to both even and odd harmonics, the latter being absent in the standard Color Glass Condensate calculations performed at eikonal accuracy. Our analysis confirms the vanishing of the subeikonal effects with increasing collision energy and when going to forward rapidities, as expected.
