2007/07/31 by Edmond L. Berger, Jian-Wei Qiu, Ricardo A. Rodriguez-Pedraza · 1 citation
Physics and Astronomy · #Cosmology and Gravitation Theories #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph #nucl-th
paper · pdf · doi:10.1016/j.physletb.2007.09.008
published as Phys.Lett.B656:74-78,2007 · 4 pages; a few changes in wording; one reference added. Version in press at Phys. Lett. B
openalex publication_date 2007/09/19 · arxiv created 2007/09/23 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We examine the transverse momentum Q_⊥ dependence of the helicity structure functions for massive vector bosons of mass Q in hadron reactions. We demonstrate that large logarithmic terms of the form ln(Q/Q_⊥) in the helicity structure functions have the same origin as the logarithmic terms in the angular-integrated cross section and that they can be resummed to all orders in the strong coupling αs, in the same way as the angular-integrated cross section. As a consequence of current conservation, the resummed part of the helicity structure functions preserves the Lam-Tung relation as a function of Q_⊥ to all orders in αs.