Soft-gluon resummation for heavy quark production in charged-current Deep Inelastic Scattering

We study soft-gluon radiation for heavy quark production in charged-current Deep Inelastic Scattering processes. We resum large-x contributions to the (MS) over bar coefficient function to next-to-leading logarithmic accuracy and present results for charm quark structure functions for several 4 values of the ratio m(c)/Q. The effect of soft resummation turns out to be visible, especially at small Q(2), and the results exhibit very little dependence on factorization and renormalization scales. The impact of our calculation on structure function measurements at NuTeV and HERA experiments is discussed. (C) 2003 Elsevier B.V. All rights reserved.