Evolution of chirality-odd twist-3 fragmentation functions
Evolution of chirality-odd twist-3 fragmentation functions
复制标题
手性奇扭曲3碎片函数的演化
DOI:
10.1016/j.physletb.2017.07.025
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发表时间:
2017-01
影响因子:
4.4
通讯作者:
Zhang G P
中科院分区:
文献类型:
--
作者:
Ma J P;Zhang G P
We derive the complete set of evolutions of chirality-odd twist-3 fragmentation functions at one-loop level. There are totally nine real twist-3 fragmentation functions, among which seven are independent. The renormalization-scale dependence of the nine functions has an important implication for studies of single transverse-spin asymmetries. We find that the evolutions of the three complex fragmentation functions defined by quark–gluon–quark operator are mixed with themselves. There is no mixing with the fragmentation functions defined only with bilinear quark field operators. In the large-N c limit the evolutions of the three complex fragmentation functions are simplified and reduced to six homogeneous equations.
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