Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2006-05-08
Phys.Lett.B642:232-237,2006
Physics
High Energy Physics
High Energy Physics - Phenomenology
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Scientific paper
10.1016/j.physletb.2006.09.029
Transverse-momentum dependent (TMD) light-cone wave functions of a light meson are important ingredients in the TMD QCD factorization of exclusive processes. This factorization allows one conveniently resum Sudakov logarithms appearing in collinear factorization. The TMD light-cone wave functions are not simply related to the standard light-cone wave functions in collinear factorization by integrating them over the transverse momentum. We explore relations between TMD light-cone wave functions and those in the collinear factorization. Two factorized relations can be found. One is helpful for constructing models for TMD light-cone wave functions, and the other can be used for resummation. These relations will be useful to establish a link between two types of factorization.
Ma Jian-Ping
Wang Qiangguo
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