Transverse-single-spin asymmetries of charged pions at midrapidity in transversely polarized p+p collisions at √s = 200 GeV
Transverse-single-spin asymmetries of charged pions at midrapidity in transversely polarized p+p collisions at √s = 200 GeV
复制标题
√s = 200 GeV 横向极化 p+p 碰撞中中速带电π介子的横向单自旋不对称性
DOI：
10.1103/physrevd.105.032003
复制
发表时间：
2022
影响因子：
5
通讯作者：
PHENIX Collaboration
中科院分区：
文献类型：
--
作者：
T. Iwabuchi;T. Matsuyama and K. Taniguchi;PHENIX Collaboration
2015年，PHENIX合作项目测量了横向极化碰撞中带电介子的单自旋不对称性，质心能量为。π介子的中心速度为。单个电荷的单自旋不对称与零一致，也与先前发表的在相同速度范围内的中性介子不对称一致。然而，它们显示出电荷依赖差异的轻微迹象，这可能表明在产生这些不对称的潜在机制中存在风味依赖。
In 2015, the PHENIX Collaboration has measured single-spin asymmetries for charged pions in transversely polarizedcollisions at the center-of-mass energy of. The pions were detected at central rapidities of. The single-spin asymmetries are consistent with zero for each charge individually, as well as consistent with the previously published neutral-pion asymmetries in the same rapidity range. However, they show a slight indication of charge-dependent differences which may suggest a flavor dependence in the underlying mechanisms that create these asymmetries.