On the role of Collins effect in the single spin asymmetry A_N in p(transv. polarized) p --> h X processes

Abstract

The much debated issue of the transverse single spin asymmetry A_N observed in the inclusive large P_T production of a single hadron in pp interactions, p(transv. polarized) p --> pion X, is considered in a TMD factorization scheme. A previous result [1,2] stating that the maximum contribution of the Collins effect is strongly suppressed, is revisited, correcting a numerical error. New estimates are given, adopting the Collins functions recently extracted from SIDIS and e+e- data, and phenomenological consequences are discussed.

RevTeX4, 11 pages, 6 eps figures

References in corpus (29)

• Global analysis of fragmentation functions for pions and kaons and their uncertainties
• Sivers Effect for Pion and Kaon Production in Semi-Inclusive Deep Inelastic Scattering
• Matches and mismatches in the descriptions of semi-inclusive processes at low and high transverse momentum
• A Unified Picture for Single Transverse-Spin Asymmetries in Hard Processes
• Single transverse-spin asymmetry in high transverse momentum pion production in pp collisions
• Measurement of Azimuthal Asymmetries in Inclusive Production of Hadron Pairs in e+e- Annihilation at \sqrt{s} = 10.58 GeV
• The Construction of Gauge-Links in Arbitrary Hard Processes
• Azimuthal and Single Spin Asymmetries in Hard Scattering Processes
• Dilepton production from polarized hadron hadron collisions
• Forward Neutral Pion Transverse Single Spin Asymmetries in p+p Collisions at \sqrt{s}=200 GeV
• Twist-3 Formalism for Single Transverse Spin Asymmetry Reexamined: Semi-Inclusive Deep Inelastic Scattering
• Single Transverse Spin Asymmetries of Identified Charged Hadrons in Polarized p+p Collisions at $\sqrt{s}$ = 62.4 GeV
• An Observation Concerning the Process Dependence of the Sivers Functions
• Single Transverse-Spin Asymmetry in Drell-Yan Production at Large and Moderate Transverse Momentum
• Single-Transverse Spin Asymmetry in Semi-Inclusive Deep Inelastic Scattering
• Collins Fragmentation and the Single Transverse Spin Asymmetry
• Single Transverse Spin Asymmetry for Large-p_T Pion Production in Semi-Inclusive Deep Inelastic Scattering
• Semi-Inclusive Deep Inelastic Scattering processes from small to large P_T
• Sivers effect in Drell-Yan processes
• Collins effect in semi-inclusive deeply inelastic scattering and in electron positron annihilation
• Azimuthal Asymmetric Distribution of Hadrons Inside a Jet at Hadron Collider
• Process dependent Sivers function and implications for single spin asymmetry in inclusive hadron production
• Azimuthal asymmetries for hadron distributions inside a jet in hadronic collisions
• The Sivers single-spin asymmetry in photon-jet production
• Single-Transverse Spin Asymmetry in Dijet Correlations at Hadron Colliders
• Collins Asymmetry at Hadron Colliders
• Single spin asymmetries in inclusive hadron production from SIDIS to hadronic collisions: universality and phenomenology
• Single Spin Asymmetry in Inclusive Hadron Production in pp Scattering from Collins Mechanism
• On the Relation Between Mechanisms for Single-Transverse-Spin Asymmetries

Cited by in corpus (37)

• Extraction of Quark Transversity Distribution and Collins Fragmentation Functions with QCD Evolution
• Parton Fragmentation Functions
• Towards an explanation of transverse single-spin asymmetries in proton-proton collisions: the role of fragmentation in collinear factorization
• Fragmentation contribution to the transverse single-spin asymmetry in proton-proton collisions
• Collins functions for pions from SIDIS and new e+e- data: a first glance at their transverse momentum dependence
• Operator Constraints for Twist-3 Functions and Lorentz Invariance Properties of Twist-3 Observables
• Sivers effect and the single spin asymmetry A_N in p(transv. pol.) p --> h X processes
• Probing the gluon Sivers function in $p^{\uparrow }p\to J/\psi X$ and $p^{\uparrow }p\to DX$
• Single-spin asymmetries in inclusive deep inelastic scattering and multiparton correlations in the nucleon
• Indication on the process-dependence of the Sivers effect
• Nucleon tensor charge from Collins azimuthal asymmetry measurements
• Cross Section and Transverse Single-Spin Asymmetry of $\eta$ Mesons in $p^{\uparrow }+p$ Collisions at $\sqrt{s}=200$ GeV at Forward Rapidity
• Extra Spin Asymmetries From the Breakdown of TMD-Factorization in Hadron-Hadron Collisions
• Phenomenological constraints on $A_N$ in $p^{\uparrow }p\to \pi X$ from Lorentz invariance relations
• TMDs and SSAs in hadronic interactions
• Where do we stand with a 3-D picture of the proton?
• Transverse Spin Structure of the Nucleon
• Role of the Soffer bound in determination of transversity and the tensor charge
• Testing the universality of the Collins function in pion-jet production at RHIC
• Transverse single spin asymmetry in hadronic ${\eta }_{c,b}$ production
• Left-right spin asymmetry in $\ell N^{\uparrow }\to hX$
• Longitudinal-transverse double-spin asymmetries in single-inclusive leptoproduction of hadrons
• Transverse single-spin asymmetries in $p^{\uparrow }p\to \gamma X$ from quark-gluon-quark correlations in the proton
• Analysis of the double-spin asymmetry A_LT in inelastic nucleon-nucleon collisions
• Single-spin asymmetries in the leptoproduction of transversely polarized $\Lambda$ hyperons
• Single-spin asymmetry of $J/\psi$ production in $p$$+$$p$, $p$$+$Al, and $p$$+$Au collisions with transversely polarized proton beams at $\sqrt{s_{{}_{NN}}}=200$ GeV
• Anomalous Quark Chromomagnetic Moment and Single-Spin Asymmetries
• Transverse spin observables in hard-scattering hadronic processes within collinear factorization
• Transverse single-spin asymmetries in proton-proton collisions at the AFTER@LHC experiment in a TMD factorisation scheme
• Collins and Sivers effects in p(transv. polarized) p --> jet pion X: Universality and process dependence
• Transverse single-spin asymmetries in proton-proton collisions at the AFTER@LHC experiment
• Probing the Gluon Sivers Function through direct photon production at RHIC
• $A_N$ in inclusive lepton-proton collisions: TMD and twist-3 approaches
• Gluon Sivers function and transverse single spin asymmetries in $e+p^{\uparrow }\to \gamma +X$
• Transverse Single-Spin Asymmetries of Midrapidity Direct Photons, Neutral Pions, and Eta Mesons in 200 GeV Polarized Proton-Proton Collisions at PHENIX
• Instanton induced transverse single spin asymmetry for ${\pi }^0$ production in $pp$-scattering
• Azimuthal asymmetries in $p^{\uparrow }p\to \mathrm{jet}\pi X$