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arXiv · hep-ph/0512124

Helicity Formalism and Spin Asymmetries in Hadronic Processes

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

We present a generalized QCD factorization scheme for the high energy inclusive polarized process, (A, S_A) + (B, S_B) -> C + X, including all intrinsic partonic motions. This introduces many non-trivial azimuthal phases and several new spin and k_T dependent soft functions. The formal expressions for single and double spin asymmetries are discussed. Numerical results for A_N[p(transv. polarized) p -> pi + X] are presented.

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M. Anselmino, M. Boglione, U. D'Alesio, E. Leader, S. Melis, F. Murgia. 2005-12-09. Helicity Formalism and Spin Asymmetries in Hadronic Processes. https://doi.org/10.1142/9789812773272_0026

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