Polarized inclusive leptoproduction, $\ell N\to hX$, and the hadron helicity density matrix, $\rho (h)$: possible measurements and predictions

Abstract

We discuss the production of hadrons in polarized lepton nucleon interactions and in the current jet fragmentation region; using the QCD hard scattering formalism we compute the helicity density matrix of the hadron and show how its elements, when measurable, can give information on the spin structure of the nucleon and the spin dependence of the quark fragmentation process. The cases of $\rho$ vector mesons and $\Lambda$ baryons are considered in more details and, within simplifying assumptions, some estimates are given.

arXiv comment17 pages + 4 figures, plain LATeX, figures appended as uuencoded, compressed postscript file

References in corpus (7)

• Fragmentation of Transversely Polarized Quarks Probed in Transverse Momentum Distributions
• The complete tree-level result up to order $1/Q$ for polarized deep-inelastic leptoproduction
• The theory and phenomenology of polarized deep inelastic scattering
• Pinning down the Glue in the Proton
• Measuring transversity densities in singly polarized hadron-hadron and lepton-hadron collisions
• Hard Scattering in QCD with Polarized Beams
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Cited by in corpus (12)

• Semi-inclusive deep inelastic scattering at small transverse momentum
• Relations between generalized and transverse momentum dependent parton distributions
• Partial-wave analysis of two-hadron fragmentation functions
• Quark Structure of $\Lambda$ from $\Lambda$-Polarization in Z Decays
• Dihadron interference fragmentation functions in proton-proton collisions
• Single spin asymmetries in l p --> h X processes: a test of factorization
• Positivity bounds on spin-one distribution and fragmentation functions
• Quark Distributions of Octet Baryons from SU(3) Symmetry
• Lambda and Lambda-bar polarization in polarized DIS
• Probing the transverse spin of quarks in deep inelastic scattering
• Parton Densities and Fragmentation Functions from Polarized Lambda Production in Semi-Inclusive DIS
• Relations between generalized parton distributions and transverse momentum dependent parton distributions