Drell-Yan-like processes and duality
arXiv:1704.06518 · doi:10.1103/PhysRevD.95.111501
Abstract
We calculate the gauge invariant Drell-Yan-like hadron tensors. In connection with new COMPASS results, we propose the single spin asymmetry which probes gluon poles together with chiral-odd and time-odd functions. The relevant pion production as a particular case of Drell-Yan-like process has been discussed. For the meson-induced Drell-Yan process, we model an analog of the twist three distribution function, which is a collinear function in inclusive channel, by means of two non-collinear distribution amplitudes which are associated with exclusive channel. This modelling demonstrates the fundamental duality between different factorization regimes.
6 pages, 2 figures. The version matches PRD RC, typos fixed
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- On the decomposition theorem for gluons
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- Archetypal Factorization and Gluon Poles in semi-exclusive reactions
- Gluon poles and photon distribution amplitudes in Drell-Yan-like processes
- Angular distributions in pion-nucleon Drell-Yan process
- Study of Spin through Gluon Poles