Single Spin Asymmetry in Inclusive Pion Production, Collins Effect and the String Model (revised version)

Abstract

We calculated the single spin asymmetry in the inclusive pion production in the fragmentation region of transversely polarized proton-proton collisions. We generated the asymmetry at the level of fragmentation function (Collins effect) by the Lund coloured string mechanism. We compared our results to the presently available experimental data. We obtained a qualitative agreement with the data after assuming that the transverse polarizations of the $u$ and the $d$ quarks in the proton are +1 and -1, respectively, at x_B = 1.

1+13 pages, plain tex, 8 figures appended in a separate compressed & uuencoded file

References in corpus (1)

• Single spin asymmetry for $p^{\uparrow }p\to \pi X$ in perturbative QCD

Cited by in corpus (38)

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• Single-Transverse Spin Asymmetries: From DIS to Hadronic Collisions
• Chiral-Odd Contribution to Single-Transverse Spin Asymmetry in Hadronic Pion Production
• Single spin asymmetries in transversely polarized proton(antiproton) - proton inclusive processes
• Lambda polarization from unpolarized quark fragmentation
• Azimuthal distributions of charged hadrons, pions, and kaons produced in deep-inelastic scattering off unpolarized protons and deuterons
• Phenomenology of single spin asymmetries in p(transv. polarized)-p -> pion + X
• Collins effect in semi-inclusive deeply inelastic scattering and in electron positron annihilation
• Measuring transverse spin correlations by 4-particle correlations in $e^{+}{e}^{-}\to 2\mathrm{jets}$
• Estimate of a Chiral-Odd Contribution to Single Transverse-Spin Asymmetry in Hadronic Pion Production
• Estimate of the Collins fragmentation function in a chiral invariant approach
• An Overview of Transverse Momentum Dependent Factorization and Evolution
• Single-spin Azimuthal Asymmetries in the ``Reduced Twist-3 Approximation''
• A mechanism for the T-odd pion fragmentation function
• Nucleon Transversity Distribution from Azimuthal Spin Asymmetry in Pion Electroproduction
• Investigation of single spin asymmetries in pi^{+} electroproduction
• Reassessment of the Collins Mechanism for Single-spin Asymmetries and the behavior of Delta d(x) at large x
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• Momentum sum rules for fragmentation functions
• Single-spin asymmetries at two loops
• Recursive model for the fragmentation of polarized quarks
• Instanton-induced Azimuthal Spin Asymmetry in Deep Inelastic Scattering
• Chiral-odd transversity spin structure function $h_1(x)$ of the nucleon in a constituent quark model
• Interplay among transversity induced asymmetries in hadron leptoproduction
• Quark-Jet model for transverse momentum dependent fragmentation functions
• Probing the transverse spin of quarks in deep inelastic scattering
• Single spin asymmetries in DIS
• Sivers and Collins Single Spin Asymmetries
• The Fractured Boer-Mulders Effect in the Production of Polarized Baryons
• Chiral Dynamics of the Polarizing Fracture Functions for Baryon Production
• Polarized Beam Jets
• Measurement of the Transverse Single-Spin Asymmetry for Mid-rapidity Production of Neutral Pions in Polarized p+p Collisions at 200 GeV Center-of-Mass Energy
• Quantum Number Density Asymmetries Within QCD Jets Correlated With Lambda Polarization
• Transverse momentum asymmetry of the extracted electron in field ionization of a Hydrogen Atom with angular momentum