Importance of Isobar Density Distributions on the Chiral Magnetic Effect Search
Importance of Isobar Density Distributions on the Chiral Magnetic Effect Search
复制标题
等压线密度分布对手性磁效应搜索的重要性
DOI：
10.1103/physrevlett.121.022301
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发表时间：
2018
影响因子：
8.6
通讯作者：
Lin Zi-Wei
中科院分区：
文献类型：
--
作者：
Xu Hao-jie;Wang Xiaobao;Li Hanlin;Zhao Jie;Lin Zi-Wei
在近似手征对称性恢复的条件下，夸克与拓扑胶子场的相互作用会导致局部区域的手征不平衡和宇称破缺。在强磁场的作用下，沿着方向会产生电荷分离（CS），这种现象称为手征磁效应（CME）。通过方位角测量仪进行的CS测量受到来自椭圆流各向异性的主要背景的污染（）。等压碰撞被提议用来从背景（几乎相同）中识别出日冕物质抛射（预计两个系统之间会有差异）。我们表明，通过使用密度泛函理论计算的质子和中子分布，这些预期可能不会举行，因为这两个系统可能有相当大的差异，偏心率和。
Under the approximate chiral symmetry restoration, quark interactions with topological gluon fields in quantum chromodynamics can induce a chirality imbalance and parity violation in local domains. An electric charge separation (CS) could be generated along the direction of a strong magnetic field (), a phenomenon called the chiral magnetic effect (CME). CS measurements by azimuthal correlators are contaminated by major backgrounds from elliptic flow anisotropy (). Isobaricandcollisions have been proposed to identify the CME (expected to differ between the two systems) out of the backgrounds (to be almost the same). We show, by using the density functional theory calculations of the proton and neutron distributions, that these expectations may not hold as originally anticipated because the two systems may have sizable differences in eccentricity and.