Transverse single spin asymmetries in photon production

2005/03/14 by Iván Schmidt, Ivan Schmidt, Jacques Soffer +1 · 1 citation
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.1016/j.physletb.2005.03.008

published as Phys.Lett. B612 (2005) 258-262 · 9 pages, 1 figure, to appear Physics Letters B

arxiv created 2005/03/14 · openalex publication_date 2005/03/18 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/02

Abstract

Transverse single spin asymmetries (SSA) in inclusive reactions are now considered to be directly related to the transverse momentum kT of the fundamental partons involved in the process. We find that the ideal probe to extract information on the gluon Sivers function is the transverse SSA of prompt photon production pp↑→γX, at large pT. The following related processes, pp↑→γ+jet+X, pp↑→γ∗+X→μ+μ−+X and p¯p↑→γ+X are also briefly discussed.

Citations

• Sudakov suppression in azimuthal spin asymmetries
• Do we understand the single-spin asymmetry for π⁰ inclusive production in pp collisions?
• Cross Sections and Transverse Single-Spin Asymmetries in Forward Neutral-Pion Production from Proton Collisions ats=200 GeV
• Single-spin production asymmetries from the hard scattering of pointlike constituents

Cited by

• Single spin asymmetries in hadron-hadron collisions