2007/01/29 by Zhun Lu, Zhun Lü, Bo-Qiang Ma +2 · 2 citations
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph
paper · pdf · doi:10.1103/physrevd.75.014026
published as Phys.Rev.D75:014026,2007 · 7 pages, 5 figures, to appear in Physical Review D
openalex publication_date 2007/01/29 · arxiv created 2007/01/30 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We calculate the nonzero Boer-Mulders functions of sea quarks inside the proton in a meson-baryon fluctuation model. The results show that the transverse spin effects of sea quarks in an unpolarized nucleon are sizable. Using the obtained antiquark Boer-Mulders functions, we estimate the cos2\ensuremathφ asymmetries in the unpolarized pp and pD Drell-Yan processes at FNAL E866/NuSea experiments. The prediction for the cos2\ensuremathφ asymmetries in the unpolarized pp Drell-Yan process at the BNL Relativistic Heavy Ion Collider (RHIC) is also given.