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arXiv · 1303.3227

On the potential role of the Collins effect in A_N in pp --> pion X

M. Anselmino·M. Boglione·U. D'Alesio·E. Leader·S. Melis·F. Murgia·A. Prokudin
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Abstract

Transverse single spin asymmetries in pp --> pion X processes, while on a quite firm ground experimentally, are still a much debated phenomenological issue. We consider them in a transverse momentum dependent factorization scheme. After revisiting a previous result, we give new estimates of the Collins contribution by adopting the latest information on the Collins and transversity functions, as extracted from SIDIS and e+e- data.

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M. Anselmino, M. Boglione, U. D'Alesio, E. Leader, S. Melis, F. Murgia, A. Prokudin. 2013-03-13. On the potential role of the Collins effect in A_N in pp --> pion X. https://doi.org/10.1393/ncc/i2013-11578-2

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