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Suppression of contributions from large-parton-number Fok states to T-odd distribution functions in Drell-Yan scattering involving small-x annihilating quark and antiquark

2010/03/23 by A. Bianconi, Andrea Bianconi, Bianconi, Andrea
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.48550/arxiv.1003.4506

12 pages, 2 figures

arxiv created 2010/03/23 · openalex publication_date 2010/03/23 · arxiv updated 2010/03/24 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

T-odd distributions like Sivers and Boer-Mulders functions are normally modeled using few-body models. In the present work I want to follow the completely opposite point of view, and study a high-energy proton-proton Drell-Yan where both the annihilating partons are wee, and one (at least) comes from a high-order Fok state of the parent proton, i.e. a state where a large number N of partons is present. I show that rescattering between active and spectator partons is modified, with suppression of those terms that are needed to build T-odd parton distributions.

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