论文标题
晶格QCD强磁场中保守电荷的波动
Fluctuations of conserved charges in strong magnetic fields from lattice QCD
论文作者
论文摘要
我们介绍了净baryon数字的二阶波动和相关性的第一个晶格QCD结果，在（2+1） - 在具有物理pion质量$m_π= 135 $ MEV的背景磁场的情况下，（2+1） - 最喜欢的晶格QCD。为了模仿重型离子碰撞实验早期产生的磁场强度，我们使用6种不同值的磁场强度值$ \ sim $ 10 $ 10 $m_π^2 $。我们发现，在当前的$ eb $窗口中，巴里昂的数量和电荷之间的相关性基本受磁场的影响，这对于探测重子碰撞实验中的磁场存在很有用。
We present the first lattice QCD results of the second order fluctuations of and correlations among net baryon number, electric charge and strangeness in (2+1)-flavor lattice QCD in the presence of a background magnetic field with physical pion mass $m_π=135$ MeV. To mimic the magnetic field strength produced in the early stage of heavy-ion collision experiments we use 6 different values of the magnetic field strength up to $ \sim $10$m_π^2$. We find that the correlations between baryon number and electric charge along the transition line are substantially affected by magnetic fields in the current $eB$ window, which could be useful for probing the existence of a magnetic field in heavy-ion collision experiments.
