Timelike small x Resummation for Fragmentation Functions

Abstract

The status of small x resummation in the timelike kinematics is discussed. We present a general procedure to extract the large logarithms of x in the MS factorization scheme and to resum them in a closed form. New results for the doubly-logarithm-resummed coefficient functions will be reviewed. All our resummation formulae are in agrement with the fixed NNLO computations recently done by other groups in the \bar{MS} scheme.

Comments: To appear in the proceedings of 19th International Workshop on Deep Inelastic Scattering and Related Subjects (DIS 2011), Newport News (Virginia), 10-15 Apr 2011