Sivers effect in Drell-Yan processes

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The Sivers distributions recently extracted from semi-inclusive deep inelastic scattering data [1] are used to compute estimates for Sivers asymmetries in Drell-Yan processes which are being planned at several facilities (RHIC, COMPASS, J-PARC, PAX, PANDA, NICA (JINR) and SPASCHARM (IHEP)). Most of these asymmetries turn out to be large and could allow a clear test of the predicted sign change of the Sivers distributions when active in SIDIS and Drell-Yan processes. This is regarded as a fundamental test of our understanding, within QCD and the factorization scheme, of single spin asymmetries.
RevTeX4, 12 pages, 23 eps figures

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High Energy Physics - Phenomenology

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http://salesiana.dossiersoluciones.com/handle/123456789/224250

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0901.3078
 http://arxiv.org/abs/0901.3078
 Phys.Rev.D79:054010,2009
 doi:10.1103/PhysRevD.79.054010

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arXiv