Phenomenology of single spin asymmetries in p(transv. polarized)-p -> pion + X

Abstract

A phenomenological description of single transverse spin effects in hadron-hadron inclusive processes is proposed, assuming a generalized factorization scheme and pQCD hard interactions. The transverse momentum, k_T, of the quarks inside the hadrons and of the hadrons relatively to the fragmenting quark, is taken into account in distribution and fragmentation functions, and leads to possible non zero single spin asymmetries. The role of k_T and spin dependent quark fragmentations -- the so-called Collins effect -- is investigated in details in p(transv. polarized)-p -> pion + X processes: it is shown how the experimental data could be described, obtaining an explicit expression for the spin asymmetry of a polarized fragmenting quark, on which some comments are made. Predictions for other processes, possible further applications and experimental tests are discussed.

20+1 pages, LaTeX, 6 eps figures, uses epsfig.sty. Version v2: Some sentences rephrased and comments added throughout the paper; one reference added; no changes in results and figures. Final version to be published in Phys. Rev. D

References in corpus (1)

• Time-reversal odd fragmentation and distribution functions in pp and ep single spin asymmetries

Cited by in corpus (60)

• Single-spin asymmetries in semi-inclusive deep-inelastic scattering on a transversely polarized hydrogen target
• Single-spin asymmetries: the Trento conventions
• Cross Sections and Transverse Single-Spin Asymmetries in Forward Neutral-Pion Production from Proton Collisions at \sqrt{s} = 200 GeV
• Transverse Deformation of Parton Distributions and Transversity Decomposition of Angular Momentum
• Chiral-Odd Contribution to Single-Transverse Spin Asymmetry in Hadronic Pion Production
• Parton intrinsic motion in inclusive particle production: unpolarized cross sections, single spin asymmetries and the Sivers effect
• Sivers function in a spectator model with axial-vector diquarks
• Single spin asymmetries in hadron-hadron collisions
• Angular dependences in inclusive two-hadron production at BELLE
• Lambda polarization from unpolarized quark fragmentation
• Collins effect in semi-inclusive deeply inelastic scattering and in electron positron annihilation
• Sivers Mechanism for Gluons
• Parton intrinsic motion: suppression of the Collins mechanism for transverse single spin asymmetries in p(transv. polarised) p --> pion + X
• Are all Boer-Mulders functions alike?
• Estimate of a Chiral-Odd Contribution to Single Transverse-Spin Asymmetry in Hadronic Pion Production
• Sivers effect and the single spin asymmetry A_N in p(transv. pol.) p --> h X processes
• An Overview of Transverse Momentum Dependent Factorization and Evolution
• Estimate of the Collins fragmentation function in a chiral invariant approach
• Transverse single spin asymmetries in Drell-Yan processes
• Accessing transversity via J/Psi production in polarized p-pbar interactions
• Transverse Spin Structure of the Nucleon through Target Single Spin Asymmetry in Semi-Inclusive Deep-Inelastic $(e,e^{\prime }{\pi }^{\pm })$ Reaction at Jefferson Lab
• Polarization in Hadronic ΛHyperon Production and Chiral-Odd Twist-3 Distribution
• Azimuthal asymmetry in electro-production of neutral pions in SIDIS
• On the role of Collins effect in the single spin asymmetry A_N in p(transv. polarized) p --> h X processes
• Sivers Effect and Transverse Single Spin Asymmetry in $e+p^{\uparrow }\to e+J/\psi +X$
• Dihadron interference fragmentation functions in proton-proton collisions
• The Collins function: a simple model calculation
• Sivers vs. Collins effect in azimuthal single spin asymmetries in pion production in SIDIS
• Transverse Single Spin Asymmetry in $e+p^{\uparrow }\to e+J/\psi +X$ and Transverse Momentum Dependent Evolution of the Sivers Function
• Transverse Lambda polarization in semi-inclusive DIS
• Spin effects in the fragmentation of a transversely polarized quark
• Single-Inclusive Production of Hadrons and Jets in Lepton-Nucleon Scattering at NLO
• Single transverse-spin asymmetries in forward pion production at high energy: incorporating small-x effects in the target
• Transverse Spin Structure of the Nucleon
• Transverse Single Spin Asymmetry in $e+p^{\uparrow }\to e+J/\psi +X$ and $Q^2$ -evolution of Sivers Function-II
• Single spin asymmetries in l p --> h X processes: a test of factorization
• Phenomenology of transverse spin: past, present and future
• Reassessment of the Collins Mechanism for Single-spin Asymmetries and the behavior of Delta d(x) at large x
• Collins fragmentation function from gluon rescattering
• Accessing Transversity in Double-Spin Asymmetries at the BNL-RHIC
• Instanton contribution to the Sivers function
• Azimuthal Spin Asymmetries in Semi-Inclusive Production from Positron-Proton Scattering
• Gluon and quark distributions in large N_c QCD: theory vs. phenomenology
• Combining nonperturbative transverse momentum dependence with TMD evolution
• Probing the transverse spin of quarks in deep inelastic scattering
• Future of low-x forward physics at RHIC
• Collins Effect in Single Spin Asymmetries of the $p^{\uparrow }p\to \pi X$ Process
• Azimuthal asymmetries in $J/\psi$-photon production at the EIC
• $\cos 2{\varphi }_t$ azimuthal asymmetry in back-to-back $J/\psi$-jet production in $ep\to eJ/\psi JetX$ at the EIC
• Single Spin Asymmetry in Inclusive Hadron Production in pp Scattering from Collins Mechanism
• Left-right asymmetry in semi-inclusive deep inelastic scattering process
• Transverse Nucleon Single-Spin Asymmetry for Single-Inclusive Hadron and Jet Production at NLO Accuracy
• Quark correlations and single-spin asymmetries
• Single spin asymmetries in QCD
• Theoretical aspects of transversity observables
• Hyperon polarization in e^-p --> e^-HK with polarized electron beams
• Parton model description of quark and antiquark correlators and TMDs
• Quark-model relations among TMDs in the parton model
• Intrinsic parton motion soft mechanisms and the longitudinal spin asymmetry A_LL in high energy pp -> pi X
• Origins of single transverse spin asymmetries