Transverse spin asymmetries for W-production in proton-proton collisions
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Journal ArticleDate
2011-05-30Author
Metz, AZhou, J
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http://hdl.handle.net/20.500.12613/6037
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10.1016/j.physletb.2011.04.042Abstract
We study parity-even and parity-odd polarization observables for the process pp→l±X, where the lepton comes from the decay of a W-boson. By using the collinear twist-3 factorization approach, we consider the case when one proton is transversely polarized, while the other is either unpolarized or longitudinally polarized. These observables give access to two particular quark-gluon-quark correlation functions, which have a direct relation to transverse momentum dependent parton distributions. We present numerical estimates for RHIC kinematics. Measuring, for instance, the parity-even transverse single spin correlation would provide a crucial test of our current understanding of single spin asymmetries in the framework of QCD. © 2011 Elsevier B.V.Citation to related work
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Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy PhysicsADA compliance
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http://dx.doi.org/10.34944/dspace/6019
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