ATLAS Collaboration

ATLAS Collaboration
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DOI:
10.1016/s0375-9474(17)30376-7
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发表时间:
2017
期刊:
影响因子:
1.4
通讯作者:
Aaboud M
Aaboud M
中科院分区:
物理与天体物理4区
文献类型:
--
作者:
Aaboud M

文献摘要

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在量子色动力学中,夸克与拓扑胶子组态的相互作用会导致手征不平衡和局域宇称破缺。在相对论重离子碰撞中,这会导致电荷沿着强磁场分离--手征磁效应(CME)。我们报告测量的星星合作的日冕物质抛射敏感的观察p+Au和d+Au碰撞在200 GeV,其中日冕物质抛射是不预期的,使用电荷依赖的对相关性相对于第三个粒子。我们观察到强烈的电荷依赖的相关性类似于在重离子碰撞中测得的。这对重离子数据的解释具有重要意义。
Quark interactions with topological gluon configurations can induce chirality imbalance and local parity violation in quantum chromodynamics. This can lead to electric charge separation along the strong magnetic field in relativistic heavy-ion collisions – the chiral magnetic effect (CME). We report measurements by the STAR collaboration of a CME-sensitive observable in p+Au and d+Au collisions at 200 GeV, where the CME is not expected, using charge-dependent pair correlations relative to a third particle. We observe strong charge-dependent correlations similar to those measured in heavy-ion collisions. This bears important implications for the interpretation of the heavy-ion data.