Sivers and collins effects: From SIDIS to proton-proton inclusive pion production

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

Research output: Contribution to conferencePaper

Abstract

We consider the Sivers, Collins and transversity functions as extracted from SIDIS and e + e- experimental data and investigate to what extent they might explain the large Single Spin Asymmetries (SSA) observed in proton-proton inclusive processes. This phenomenological study is performed within the TMD factorization scheme. As the SIDIS data cover only a limited range of x values (x ≲ 0.3), we allow for different large x behaviours of the SIDIS Sivers functions and transversity distributions. We conclude that, within the available experimental constraints, one cannot observe any clear universality breaking effect for the Sivers functions.

Original languageEnglish (US)
StatePublished - Dec 1 2009
Event17th International Workshop on Deep-Inelastic Scattering and Related Topics, DIS 2009 - Madrid, Spain
Duration: Apr 26 2009Apr 30 2009

Other

Other17th International Workshop on Deep-Inelastic Scattering and Related Topics, DIS 2009
CountrySpain
CityMadrid
Period4/26/094/30/09

All Science Journal Classification (ASJC) codes

  • Radiation

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    Anselmino, M., Boglione, M., D'Alesio, U., Leader, E., Melis, S., Murgia, F., & Prokudin, A. (2009). Sivers and collins effects: From SIDIS to proton-proton inclusive pion production. Paper presented at 17th International Workshop on Deep-Inelastic Scattering and Related Topics, DIS 2009, Madrid, Spain.