On the anomalous dimension of the transversity distribution $h_1(x,Q^2)$
On the anomalous dimension of the transversity distribution $h_1(x,Q^2)$
复制标题
关于横向分布的反常维数$h_1(x,Q^2)$
DOI:
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发表时间:
2001
期刊:
影响因子:
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通讯作者:
Johannes Blumlein
中科院分区:
文献类型:
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作者:
Johannes Blumlein
Abstract. We calculate the leading order anomalous dimension of the transversity structure function directly using three different methods, the local light–cone expansion in the forward case, the non–forward case, and the short–distance expansion of the forward Compton amplitude. Our results agree with the original calculation by Artru and Mekhfi [Z. Phys. 45 (1990) 669], which has been doubted recently. We also comment on the next-to-leading order anomalous dimension.