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Collins effect in single spin asymmetries of the $p^{\uparrow}p \to \pi X$ process

Ma, Bo-Qiang ; Schmidt, I. ; Yang, Jian-Jun



Zusammenfassung

We investigate the Collins effect in single spin asymmetries ( SSAs) of the p(up arrow)p -> pi X process by taking into account the transverse momentum dependence of the microscopic sub-process cross sections, with the transverse momentum in the Collins function integrated over. We find that the asymmetries due to the Collins effect can only explain the available data at best qualitatively, by ...

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