Single-spin asymmetries: The Trento conventions

Abstract

During the workshop ``Transversity: New Developments in Nucleon Spin Structure'' (${\mathrm{E}\mathrm{C}\mathrm{T}}^{*}$, Trento, Italy, 14--18 June 2004), a series of recommendations was put forward by the participants concerning definitions and notations for describing effects of intrinsic transverse-momentum of partons in semi-inclusive deep inelastic scattering.