Q 2 dependence of chiral-odd twist-3 distribution e(x, Q 2)
نویسنده
چکیده
We discuss the Q dependence of the chiral-odd twist-3 distribution e(x,Q). The anomalous dimension matrix for the corresponding twist-3 operators is calculated in the one-loop level. This study completes the calculation of the anomalous dimension matrices for all the twist-3 distributions together with the known results for the other twist-3 distributions g2(x,Q ) and hL(x,Q ). We also have confirmed that in the large Nc limit the Q -evolution of e(x,Q) is wholely governed by the lowest eigenvalue of the anomalous dimension matrix which takes a very simple analytic form as in the case of g2 and hL.
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