Single spin asymmetries in l p --> h + X processes

2009/07/22 by M. Anselmino, M. Boglione, Anselmino, M. +9
Physics and Astronomy · #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #High-Energy Particle Collisions Research

paper · doi:10.48550/arxiv.0907.3829

Abstract

We study the transverse single spin asymmetry (SSA), A_N, for the single inclusive process l p (transv. polarized) --> h + X, in a perturbative QCD factorization scheme with inclusion of spin and transverse momentum dependent (TMD) distributions. By adopting the relevant TMDs (Sivers and Collins functions) as extracted from semi-inclusive deep inelastic scattering (SIDIS) and e+e- data, predictions for these SSAs are given. A measurement of A_N for this process could then provide a direct test of the validity of the TMD factorization.

Related

• Single Spin Asymmetries in l p(transv. pol.) --> h X processes and TMD factorisation
• A_N in inclusive lepton-proton collisions
• Single spin asymmetries and gluonic pole matrix elements
• Phenomenology of transverse single spin asymmetries in inclusive processes
• General helicity formalism for Single and Double Spin Asymmetries in p p --> pion + X