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arXiv · 2602.07682

Single spin asymmetry in $e+p\to e'+B^\uparrow+X$

Yoshitaka Hatta·Oleg V. Teryaev
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Abstract

We study an exotic type of single spin asymmetry in unpolarized electron-proton scattering, in which the outgoing electron momentum exhibits a left-right asymmetry relative to the transverse spin of the leading baryon $B$ in the target fragmentation region. We lay out two theoretical frameworks for describing this effect: The twist-three fracture function at high-$Q^2$ and the spin-dependent odderon in the high energy limit.

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Yoshitaka Hatta, Oleg V. Teryaev. 2026-02-07. Single spin asymmetry in $e+p\to e'+B^\uparrow+X$. https://arxiv.org/abs/2602.07682

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