Gluon Saturation at small x
Gluon Saturation at small x
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小 x 时的胶子饱和度
DOI：
10.1142/9789812778048_0029
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发表时间：
2001
期刊：
影响因子：
--
通讯作者：
E. Iancu
中科院分区：
文献类型：
--
作者：
E. Iancu
在非常高的能量下，强子波函数的相关成分可以被描述为彩色玻璃凝聚，即高密度胶子物质的状态，其分布是随机的，但在相关的时间尺度上是冻结的。该分布的权函数服从一个泛函Fokker-Planck方程形式的重整化群方程。它的解导致了一个有效的理论，该理论预测在足够高的能量下胶子饱和，或小比约肯的x$。
At very high energies, the relevant component of the hadron wavefunction can be described as a Color Glass Condensate, i.e., a state of high density gluonic matter whose distribution is random, but frozen over the relevant time scales. The weight function for this distribution obeys a renormalization group equation in the form of a functional Fokker-Planck equation. Its solution leads to an effective theory which predicts gluon saturation at sufficiently high energy, or small Bjorken's $x$.