A partonic description of the transverse target single-spin asymmetry in inclusive DIS

Abstract

The single-spin asymmetry of unpolarized leptons scattering deep-inelastically off transversely polarized nucleons is studied in a partonic picture within a collinear twist-3 framework. Since this observable is generated by multi-photon exchanges between lepton and nucleon a partonic description of the asymmetry contains essential elements of a full next-to-leading order calculation for single-spin asymmetries in perturbative Quantum Chromodynamics. In particular it is shown how nontrivial cancellations between kinematical and dynamical twist-3 contributions lead to a well-behaved and finite formula. This final result can be expressed in terms of multipartonic quark-gluon and quark-photon correlation functions. Hence, a measurement of the transverse target single-spin asymmetry may provide new constraints on these multipartonic correlations.

4 pages, 3 figures

References in corpus (2)

• Transverse target spin asymmetry in inclusive DIS with two-photon exchange
• Transverse single spin asymmetries in inclusive deep-inelastic scattering

Cited by in corpus (14)

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• Accessing the nucleon transverse structure in inclusive deep inelastic scattering
• Single-spin asymmetries at two loops
• Transverse spin observables in hard-scattering hadronic processes within collinear factorization
• Transverse spin asymmetries at the EIC as a probe of anomalous electric and magnetic dipole moments
• Expansion by regions meets angular integrals
• On the odderon mechanism for transverse single spin asymmetry in the Wandzura-Wilczek approximation
• Asymptotic behavior of angular integrals in the massless limit
• Transverse Nucleon Single-Spin Asymmetry for Single-Inclusive Hadron and Jet Production at NLO Accuracy
• Angular integrals with three denominators via IBP, mass reduction, dimensional shift, and differential equations
• Target normal single-spin asymmetry in inclusive electron-nucleon scattering with two-photon exchange: Analysis using $1/N_c$ expansion
• On multi-propagator angular integrals
• Target normal single-spin asymmetry in inclusive electron-nucleon scattering in the 1/Nc expansion
• Fragmentation contributions to transverse nucleon spin observables in semi-inclusive deep-inelastic scattering at NLO