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arXiv · 1404.6270

Double Spin Asymmetries through QCD Instantons

Yachao Qian·Ismail Zahed
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Abstract

We revisit the large instanton contribution to the gluon Pauli form factor of the constituent quark noted by Kochelev. We check that it contributes sizably to the single spin asymmetry in polarized $p_\uparrow p \rightarrow πX$. We use it to predict a large double spin asymmetry in doubly polarized $p_\uparrow p_\uparrow\rightarrow ππX$.

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Yachao Qian, Ismail Zahed. 2014-04-24. Double Spin Asymmetries through QCD Instantons. https://doi.org/10.1103/physrevd.90.114012

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