Electron-muon correlation as a new probe of strongly interacting quark-gluon plasma
Electron-muon correlation as a new probe of strongly interacting quark-gluon plasma
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DOI：
10.1103/physrevc.80.031901
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发表时间：
2009-07
影响因子：
3.1
通讯作者：
Y. Akamatsu;T. Hatsuda;Tetsufumi Hirano
中科院分区：
文献类型：
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作者：
Y. Akamatsu;T. Hatsuda;Tetsufumi Hirano
作为对强相互作用夸克-胶子等离子体（sQGP）的一种新的、干净的探测，我们提出了一种源自粲夸克和底夸克的半光子衰变的电子和介子的方位角关联。通过求解热等离子体流体动力学演化下重夸克的Langevin方程，我们发现，如果作用在重夸克上的sQGP阻力足够大，电子-介子相关的远端峰就会出现明显的猝灭。这种效应可以在相对论重离子对撞机和大型强子对撞机的高能重离子碰撞中检测到。
As a new and clean probe to the strongly interacting quark-gluon plasma (sQGP), we propose an azimuthal correlation of an electron and a muon that originate from the semileptonic decay of charm and bottom quarks. By solving the Langevin equation for the heavy quarks under the hydrodynamic evolution of the hot plasma, we show that substantial quenching of the away-side peak in the electron-muon correlation can be seen if the sQGP drag force acting on heavy quarks is large enough as suggested from the gauge/gravity correspondence. The effect could be detected in high-energy heavy ion collisions at the Relativistic Heavy Ion Collider and the Large Hadron Collider.