Next to Leading Order QCD Corrections to Polarized $\Lambda$ Production in DIS

Abstract

We calculate next to leading order QCD corrections to semi-inclusive polarized deep inelastic scattering and $e^{+}{e}^{-}$ annihilation cross sections for processes where the polarization of the identified final-state hadron can also be determined. Using dimensional regularization and the HVBM prescription for the ${\gamma }_5$ matrix, we compute corrections for different spin-dependent observables, both in the $\overline{MS}$ and $\overline{M{S}_p}$ factorization schemes, and analyse their structure. In addition to the well known corrections to polarized parton distributions, we also present those for final-state polarized fracture functions and polarized fragmentation functions, in a consistent factorization scheme.

final version with few corrections, to be published in Nuc. Phys. B

References in corpus (1)

• Spin - Dependent Parton Distributions of the Longitudinally Polarized Photon Beyond the Leading Order

Cited by in corpus (11)

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• Phenomenology of Forward Hadrons in DIS: Fracture Functions and its $Q^2$ Evolution
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• Spin Physics and Polarized Structure Functions
• Next-to-Leading Order Evolution of Polarized and Unpolarized Fragmentation Functions
• Polarized Lambda-Baryon Production in pp Collisions
• Resummation for Polarized Semi-Inclusive Deep-Inelastic Scattering at Small Transverse Momentum
• QCD corrections up to order alpha_s^2 to polarized quark production in e^+ e^- -annihilation
• Double Spin Asymmetries for Large-$p_T$ Hadron Production in Semi-Inclusive DIS
• QCD analysis of Lambda hyperon production in DIS target-fragmentation region
• O(α_s^2) contributions to the fragmentation function g_1(x,Q^2) in polarized e^+e^- annihilation