Azimuthal asymmetries for hadron distributions inside a jet in hadronic collisions

Abstract

Using a generalized parton model approach including spin and intrinsic parton motion effects, and assuming the validity of factorization for large-pT jet production in hadronic collisions, we study the azimuthal distribution around the jet axis of leading unpolarized or (pseudo)scalar hadrons, namely pions, produced in the jet fragmentation process. We identify the observable leading-twist azimuthal asymmetries for the unpolarized and single-polarized case related to quark and gluon-originated jets. We account for all physically allowed combinations of the transverse momentum dependent (TMD) parton distribution and fragmentation functions, with special attention to the Sivers, Boer-Mulders, and transversity quark distributions, and to the Collins fragmentation function for quarks (and to the analogous functions for gluons). For each of these effects we evaluate, at central and forward rapidities and for kinematical configurations accessible at BNL-RHIC, the corresponding potentially maximized asymmetry (for pi+ production), obtained by saturating natural positivity bounds (and the Soffer bound for transversity) for the distribution and fragmentation functions involved and summing additively all partonic contributions. We then estimate, for both neutral and charged pions, the asymmetries involving TMD functions for which parameterizations are available. We also study the role of the different mechanisms, and the corresponding transverse single spin asymmetries, for large-pT inclusive jet production.

RevTeX4, 20 pages, 14 eps figures

References in corpus (57)

• Fragmentation of Transversely Polarized Quarks Probed in Transverse Momentum Distributions
• Time-reversal odd distribution functions in leptoproduction
• The complete tree-level result up to order $1/Q$ for polarized deep-inelastic leptoproduction
• QCD Factorization for Semi-Inclusive Deep-Inelastic Scattering at Low Transverse Momentum
• Global analysis of fragmentation functions for pions and kaons and their uncertainties
• Single-spin asymmetries in semi-inclusive deep-inelastic scattering on a transversely polarized hydrogen target
• Final state interactions and gauge invariant parton distributions
• Universality of T-odd effects in single spin and azimuthal asymmetries
• Models for the Polarized Parton Distributions of the Nucleon
• Universality of soft and collinear factors in hard-scattering factorization
• QCD Factorization for Spin-Dependent Cross Sections in DIS and Drell-Yan Processes at Low Transverse Momentum
• Single Transverse-Spin Asymmetries in Hadronic Pion Production
• Fragmentation Functions from Flavour-inclusive and Flavour-tagged e^+e^- Annihilations
• Parton Distributions in Light-Cone Gauge: Where Are the Final-State Interactions?
• First Measurement of the Transverse Spin Asymmetries of the Deuteron in Semi-Inclusive Deep Inelastic Scattering
• Transversity and Collins functions from SIDIS and e+e- data
• Observation of the Naive-T-odd Sivers Effect in Deep-Inelastic Scattering
• Positivity Constraints for Spin-Dependent Parton Distributions
• Sivers Effect for Pion and Kaon Production in Semi-Inclusive Deep Inelastic Scattering
• Mid-Rapidity Neutral Pion Production in Proton-Proto Collisions at sqrt(s_NN) = 200 GeV
• Cross Sections and Transverse Single-Spin Asymmetries in Forward Neutral-Pion Production from Proton Collisions at \sqrt{s} = 200 GeV
• Collins and Sivers asymmetries for pions and kaons in muon-deuteron DIS
• A new measurement of the Collins and Sivers asymmetries on a transversely polarised deuteron target
• No Generalized TMD-Factorization in the Hadro-Production of High Transverse Momentum Hadrons
• Measurement of Azimuthal Asymmetries in Inclusive Production of Hadron Pairs in e+e- Annihilation at Belle
• Update on transversity and Collins functions from SIDIS and e+ e- data
• k_T factorization is violated in production of high-transverse-momentum particles in hadron-hadron collisions
• A Unified Picture for Single Transverse-Spin Asymmetries in Hard Processes
• Measurement of Azimuthal Asymmetries in Inclusive Production of Hadron Pairs in e+e- Annihilation at \sqrt{s} = 10.58 GeV
• Transverse-Spin and Transverse-Momentum Effects in High-Energy Processes
• Azimuthal and Single Spin Asymmetries in Hard Scattering Processes
• Bounds on transverse momentum dependent distribution and fragmentation functions
• Measurement of the Collins and Sivers asymmetries on transversely polarised protons
• Extracting the Sivers function from polarized SIDIS data and making predictions
• Forward Neutral Pion Transverse Single Spin Asymmetries in p+p Collisions at \sqrt{s}=200 GeV
• Hadron structure from lattice quantum chromodynamics
• Measurement of Transverse Single-Spin Asymmetries for Mid-rapidity Production of Neutral Pions and Charged Hadrons in Polarized p+p Collisions at sqrt(s) = 200 GeV
• Parton intrinsic motion in inclusive particle production: unpolarized cross sections, single spin asymmetries and the Sivers effect
• Single Transverse-Spin Asymmetry in Drell-Yan Production at Large and Moderate Transverse Momentum
• Single-Transverse Spin Asymmetry in Semi-Inclusive Deep Inelastic Scattering
• General partonic structure for hadronic spin asymmetries
• The Boer-Mulders effect in unpolarized SIDIS: an analysis of the COMPASS and HERMES data on the $\cos 2\varphi$ asymmetry
• Measurement of Angular Distributions of Drell-Yan Dimuons in p + d Interaction at 800 GeV/c
• Non-universality of transverse momentum dependent parton distribution functions
• Azimuthal Asymmetric Distribution of Hadrons Inside a Jet at Hadron Collider
• Sivers Mechanism for Gluons
• Parton intrinsic motion: suppression of the Collins mechanism for transverse single spin asymmetries in p(transv. polarised) p --> pion + X
• 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
• Process dependent Sivers function and implications for single spin asymmetry in inclusive hadron production
• Measurement of Angular Distributions of Drell-Yan Dimuons in $p+p$ Interactions at 800 GeV/c
• Longitudinal double-spin asymmetry and cross section for inclusive neutral pion production at midrapidity in polarized proton collisions at sqrt(s) = 200 GeV
• LO-phonon overheating in quantum dots
• Sum rules for the T-odd fragmentation functions
• Constraints on the gluon Sivers distribution via transverse single spin asymmetries at midrapidity in p(transv. polarized) p -> pi^0 X processes at BNL RHIC
• Transversity measurements at HERMES
• Collins Asymmetry at Hadron Colliders
• Single Spin Asymmetry in Inclusive Hadron Production in pp Scattering from Collins Mechanism

Cited by in corpus (34)

• TMD Parton Distribution and Fragmentation Functions with QCD Evolution
• Parton Fragmentation Functions
• Hadron Fragmentation Inside Jets in Hadronic Collisions
• 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 $p^{\uparrow }p\to DX$
• Unraveling the Gluon Sivers Function in Hadronic Collisions at RHIC
• General Helicity Formalism for Polarized Semi-Inclusive Deep Inelastic Scattering
• On the role of Collins effect in the single spin asymmetry A_N in p(transv. polarized) p --> h X processes
• Global fitting of single spin asymmetry: an attempt
• Indication on the process-dependence of the Sivers effect
• Azimuthal transverse single-spin asymmetries of inclusive jets and charged pions within jets from polarized-proton collisions at $\sqrt{s}=500$ GeV
• Neutral pion cross section and spin asymmetries at intermediate pseudorapidity in polarized proton collisions at sqrt{s} = 200 GeV
• Transverse spin effects in hard semi-inclusive collisions
• Extra Spin Asymmetries From the Breakdown of TMD-Factorization in Hadron-Hadron Collisions
• Testing the process dependence of the Sivers function via hadron distributions inside a jet
• TMDs and SSAs in hadronic interactions
• Testing the universality of the Collins function in pion-jet production at RHIC
• Single transverse spin asymmetry of prompt photon production
• Transverse Single Spin Asymmetry in $p+p^{\uparrow }\to D+X$
• Azimuthal transverse single-spin asymmetries of inclusive jets and identified hadrons within jets from polarized $pp$ collisions at $\sqrt{s}$ = 200 GeV
• Fragmentation with a Cut on Thrust: Predictions for B-factories
• Collins and Sivers effects in p(transv. polarized) p --> jet pion X: Universality and process dependence
• Transverse single-spin asymmetry in the low-virtuality leptoproduction of open charm as a probe of the gluon Sivers function
• Probing the Gluon Sivers Function through direct photon production at RHIC
• Constraining Quark Transversity through Collins Asymmetry Measurements at STAR
• Collins function for pion-in-jet production in polarized $pp$ collisions: a test of universality and factorization
• Transverse spin polarization as a novel probe of medium-induced transverse-momentum-broadening effect
• Gluon Sivers function and transverse single spin asymmetries in $e+p^{\uparrow }\to \gamma +X$
• Probing TMDs through azimuthal distributions of pions inside a jet in hadronic collisions
• Azimuthal asymmetries in $p^{\uparrow }p\to \mathrm{jet}\pi X$
• Low-virtuality leptoproduction of open-charm as a probe of the gluon Sivers function
• Exploring the Quark Transversity and the Collins Fragmentation Functions using Polarized $pp$ Collisions at STAR
• Collins asymmetries for pion-in-jet production in polarized $\ell p$ collisions at the EIC
• Soft background fields at next-to-leading power in transverse momentum dependent SIDIS with jets