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High energy QCD: Multiplicity distribution and entanglement entropy
Physical Review D ( IF 5 ) Pub Date : 
E. Gotsman, E. Levin

In this paper we show that QCD at high energies leads to the multiplicity distribution $\frac{\sigma_n}{\sigma_{ \rm in}}\,\,= \,\,\frac{1}{N}\,\Lb \frac{N\,-\,1}{N}\Rb^{n - 1}$, (where N denotes the average number of particles), and to entanglement entropy S=lnN, confirming that the partonic state at high energy is maximally entangled. However, the value of N depends on the kinematics of the parton cascade. In particular, for DIS N=xG(x,Q) , where xG is the gluon structure function, while for hadron-hadron collisions, NQS2(Y), where Qs denotes the saturation scale. We checked that this multiplicity distribution describes the LHC data for low multiplicities $n ,

中文翻译:

高能QCD:多重分布和纠缠熵

在本文中,我们证明高能量的QCD导致多重分布$ \ frac {\ sigma_n} {\ sigma_ {\ rm in}} \,\,= \,\,\ frac {1} {N} \, \ Lb \ frac {N \,-\,1} {N} \ Rb ^ {n-1} $,(其中ñ 表示平均粒子数),并纠缠熵 小号=lnñ,证实了高能量下的部分状态被最大程度地纠缠了。但是,ñ取决于parton级联的运动学。特别是对于DISñ=XGX ,在哪里 XG 是胶子结构函数,而对于强子-强子碰撞, ñ小号2ÿ,在哪里 s表示饱和度标度。我们检查了该多重性分布是否描述了低多重性$ n的LHC数据,
更新日期:2020-09-23
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