p.此标度变量在某些近拟下分别约化为Weizmann变量,Bloom-Gilman变量和Bjorken变量,并对Bjorken标度无关性的幂律型破坏给出较大的贡献.本文也给出了从自由场算符乘积展开(OPE)方法和一般OPE方法对xp重新标度的理解,指出它很可能是光锥展开系数中的一种高阶效应而不属于高挠度效应.因此,xp重新标度是造成Bjorken标度无关性的幂律型破坏的一种可能的新机制,它对由实验数据准确测得可靠的QCD标度参数Λ具有一定的理论意义."> 造成Bjorken标度无关性幂律型破坏的新机制 -
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