title: Sudakov resummation in the small-x saturation formalism.
abstract: Through an explicit calculation of massive scalar particle (e.g., Higgs boson) production in high energy pA collisions up to one-loop order, we demonstrate, for the first time, that the Sudakov-type logarithms in hard processes in the small-x saturation formalism can be systematically separated from the small-x logarithms. The generic feature of the Sudakov logarithms and all order resummation is derived. This calculation shall provide us deep insights into the understanding of factorizations in the saturation formalism. We further comment on the phenomenological implications in the LHC energy regime and extension to other hard processes in small-x calculations.
authors.affiliation: Department of Physics, Columbia University, New York, New York 10027, USA.
authors.forename: A H
authors.initials: AH
authors.lastname: Mueller
authors.forename: Bo-Wen
authors.initials: BW
authors.lastname: Xiao
authors.forename: Feng
authors.initials: F
authors.lastname: Yuan