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arXiv · 1704.06518

Drell-Yan-like processes and duality

I. V. Anikin·L. Szymanowski·O. V. Teryaev·N. Volchanskiy
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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.

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I. V. Anikin, L. Szymanowski, O. V. Teryaev, N. Volchanskiy. 2017-06-25. Drell-Yan-like processes and duality. https://doi.org/10.1103/physrevd.95.111501

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