Single-spin asymmetries: the Trento conventions

Abstract

During the workshop "Transversity: New Developments in Nucleon Spin Structure" (ECT*, Trento, Italy, 14-18 June 2004), a series of recommendations was put forward by the participants concerning definitions and notations for describing effects of intrinsic transverse momentum of partons in semi-inclusive deep inelastic scattering.

6 pages, 1 figure. Outcome of discussions at the workshop "Transversity: New Developments in Nucleon Spin Structure" (ECT*, Trento, Italy, 14-18 June 2004). Footnote 2 added

References in corpus (12)

• Fragmentation of Transversely Polarized Quarks Probed in Transverse Momentum Distributions
• Leading-twist Single-transverse-spin asymmetries: Drell-Yan and Deep-Inelastic Scattering
• Time-reversal odd distribution functions in leptoproduction
• The complete tree-level result up to order $1/Q$ for polarized deep-inelastic leptoproduction
• Transverse Polarisation of Quarks in Hadrons
• Single spin asymmetry for $p^{\uparrow }p\to \pi X$ in perturbative QCD
• Phenomenology of single spin asymmetries in p(transv. polarized)-p -> pion + X
• Transverse single spin asymmetries in Drell-Yan processes
• Angular dependences in electroweak semi-inclusive leptoproduction
• Time-reversal odd fragmentation and distribution functions in pp and ep single spin asymmetries
• Transverse Lambda polarization in semi-inclusive DIS
• Spin effects in the fragmentation of a transversely polarized quark

Cited by in corpus (259)

• Unraveling hadron structure with generalized parton distributions
• Semi-inclusive deep inelastic scattering at small transverse momentum
• The Spin Structure of the Nucleon
• The Physics of the B Factories
• Electron-Ion Collider in China
• Transversity and Collins functions from SIDIS and e+e- data
• Observation of the Naive-T-odd Sivers Effect in Deep-Inelastic Scattering
• Transverse-momentum distributions in a diquark spectator model
• Sivers Effect for Pion and Kaon Production in Semi-Inclusive Deep Inelastic Scattering
• Collins and Sivers asymmetries for pions and kaons in muon-deuteron DIS
• The role of Cahn and Sivers effects in Deep Inelastic Scattering
• Single Spin Asymmetries in Charged Pion Production from Semi-Inclusive Deep Inelastic Scattering on a Transversely Polarized ${}^3$He Target
• Extraction of Quark Transversity Distribution and Collins Fragmentation Functions with QCD Evolution
• Matches and mismatches in the descriptions of semi-inclusive processes at low and high transverse momentum
• Generalized Parton Distributions in the valence region from Deeply Virtual Compton Scattering
• Parton Fragmentation Functions
• 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
• GPD phenomenology and DVCS fitting - Entering the high-precision era
• Effects of transversity in deep-inelastic scattering by polarized protons
• QCD Evolution of the Sivers Asymmetry
• On the analysis of lepton scattering on longitudinally or transversely polarized protons
• Scaling Tests of the Cross Section for Deeply Virtual Compton Scattering
• The QCD Evolution of the Sivers Function
• Measurement of Azimuthal Asymmetries in Inclusive Production of Hadron Pairs in e+e- Annihilation at \sqrt{s} = 10.58 GeV
• Single-Transverse Spin Asymmetries: From DIS to Hadronic Collisions
• Electron Ion Collider: The Next QCD Frontier - Understanding the glue that binds us all
• Measurement of the Collins and Sivers asymmetries on transversely polarised protons
• Extracting the Sivers function from polarized SIDIS data and making predictions
• Non-perturbative structure of semi-inclusive deep-inelastic and Drell-Yan scattering at small transverse momentum
• Deeply Virtual Compton Scattering off the neutron
• Experimental investigation of transverse spin asymmetries in muon-p SIDIS processes: Sivers asymmetries
• Nucleon form factors, generalized parton distributions and quark angular momentum
• Transverse Deformation of Parton Distributions and Transversity Decomposition of Angular Momentum
• Sivers effect in semi-inclusive deeply inelastic scattering
• An Observation Concerning the Process Dependence of the Sivers Functions
• TMD Evolution: Matching SIDIS to Drell-Yan and W/Z Boson Production
• Unpolarized Transverse Momentum Distributions from a global fit of Drell-Yan and Semi-Inclusive Deep-Inelastic Scattering data
• Chiral-odd generalized parton distributions in constituent quark models
• A Unified Treatment of the QCD Evolution of All (Un-)Polarized TMD Functions: Collins Function as a Study Case
• Measurement of Deeply Virtual Compton Scattering with a Polarized Proton Target
• Collins and Sivers asymmetries in muonproduction of pions and kaons off transversely polarised proton
• Measurement of Collins asymmetries in inclusive production of charged pion pairs in e^+e^- annihilation at BABAR
• The Beam--Charge Azimuthal Asymmetry and Deeply Virtual Compton Scattering
• General partonic structure for hadronic spin asymmetries
• Measurement of Single and Double Spin Asymmetries in Deep Inelastic Pion Electroproduction with a Longitudinally Polarized Target
• The Boer-Mulders effect in unpolarized SIDIS: an analysis of the COMPASS and HERMES data on the $\cos 2\varphi$ asymmetry
• The E00-110 experiment in Jefferson Lab's Hall A: Deeply Virtual Compton Scattering off the Proton at 6 GeV
• Beam-helicity and beam-charge asymmetries associated with deeply virtual Compton scattering on the unpolarised proton
• Collins functions for pions from SIDIS and new e+e- data: a first glance at their transverse momentum dependence
• Measurement of Azimuthal Asymmetries With Respect To Both Beam Charge and Transverse Target Polarization in Exclusive Electroproduction of Real Photons
• First extraction of Interference Fragmentation Functions from e+e- data
• Azimuthal distributions of charged hadrons, pions, and kaons produced in deep-inelastic scattering off unpolarized protons and deuterons
• Parton Orbital Angular Momentum and Final State Interactions
• Evidence for a Transverse Single-Spin Asymmetry in Leptoproduction of pi+pi- Pairs
• On timelike and spacelike deeply virtual Compton scattering at next to leading order
• Collins fragmentation function for pions and kaons in a spectator model
• Sivers effect in Drell-Yan processes
• Collins effect in semi-inclusive deeply inelastic scattering and in electron positron annihilation
• Measurement of double-spin asymmetries associated with deeply virtual Compton scattering on a transversely polarized hydrogen target
• Azimuthal Asymmetric Distribution of Hadrons Inside a Jet at Hadron Collider
• Are all Boer-Mulders functions alike?
• Collins azimuthal asymmetries of hadron production inside jets
• Reviewing model calculations of the Collins fragmentation function
• Modeling dihadron fragmentation functions
• Exclusive Leptoproduction of Real Photons on a Longitudinally Polarised Hydrogen Target
• 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 $p^{\uparrow }p\to DX$
• Measurement of unpolarized semi-inclusive pi+ electroproduction off the proton
• Beam-helicity asymmetry arising from deeply virtual Compton scattering measured with kinematically complete event reconstruction
• Measurement of azimuthal asymmetries in inclusive charged dipion production in $e^{+}{e}^{-}$ annihilations at $\sqrt{s}$ = 3.65 GeV
• Extraction of the Sivers function from SIDIS, Drell-Yan, and $W^{\pm }/Z$ boson production data with TMD evolution
• Towards a first estimate of the gluon Sivers function from $A_N$ data in $pp$ collisions at RHIC
• Sivers effect in Drell Yan at RHIC
• Process dependent Sivers function and implications for single spin asymmetry in inclusive hadron production
• Beam-Target Double Spin Asymmetry A_LT in Charged Pion Production from Deep Inelastic Scattering on a Transversely Polarized He-3 Target at 1.4<Q^2<2.7 GeV^2
• Unraveling the Gluon Sivers Function in Hadronic Collisions at RHIC
• Global analysis of the Sivers functions at NLO+NNLL in QCD
• A quark model analysis of the Sivers function
• Beam-Spin Asymmetries in the Azimuthal Distribution of Pion Electroproduction
• Rosenbluth separation of the ${\pi }^0$ electroproduction cross section
• General Helicity Formalism for Polarized Semi-Inclusive Deep Inelastic Scattering
• A Glimpse of Gluons through Deeply Virtual Compton Scattering on the Proton
• Single-spin azimuthal asymmetry in exclusive electroproduction of pi+ mesons on transversely polarized protons
• Subleading-twist effects in single-spin asymmetries in semi-inclusive deep-inelastic scattering on a longitudinally polarized hydrogen target
• Spin Density Matrix Elements in Exclusive rho^0 Electroproduction on 1H and 2H Targets at 27.5 GeV Beam Energy
• 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
• Asymmetries involving dihadron fragmentation functions: from DIS to e+e- annihilation
• Nucleon tensor charge from Collins azimuthal asymmetry measurements
• Next-to-leading order corrections in exclusive meson production
• Connection between the Sivers function and the anomalous magnetic moment
• Extracting the Transverse Momentum Dependent Polarizing Fragmentation Functions
• The Sivers single-spin asymmetry in photon-jet production
• $J/\psi$ Production in Polarized and Unpolarized $ep$ Collision and Sivers and $\cos 2\varphi$ Asymmetries
• Evidence for the Absence of Gluon Orbital Angular Momentum in the Nucleon
• Single Transverse-Spin Asymmetry in Hadronic Dijet Production
• Test of two new parameterizations of the Generalized Parton Distribution $H$
• Flavor dependence of unpolarized quark Transverse Momentum Distributions from a global fit
• Single Spin Asymmetry Scaling in the Forward Rapidity Region at RHIC
• Exclusive ${\pi }^0$ electroproduction at $W>2$ GeV with CLAS
• N${}^3$LO extraction of the Sivers function from SIDIS, Drell-Yan, and $W^{\pm }/Z$ data
• Extraction of Generalized Parton Distribution Observables from Deeply Virtual Electron Proton Scattering Experiments
• Model calculations of the Sivers function satisfying the Burkardt Sum Rule
• The dual parameterization of the proton generalized parton distribution functions H and E and description of the DVCS cross sections and asymmetries
• Measurement of azimuthal asymmetries associated with deeply virtual Compton scattering on an unpolarized deuterium target
• Single Spin Asymmetries in Charged Kaon Production from Semi-Inclusive Deep Inelastic Scattering on a Transversely Polarized ${}^3\mathrm{He}$ Target
• Extraction of the Compton Form Factor H from DVCS measurements at Jefferson Lab
• Checking the Burkardt sum rule for the Sivers function by model calculations
• Quasi-parton distribution functions: a study in the diquark spectator model
• Factorization for Azimuthal Asymmetries in SIDIS at Next-to-Leading Power
• Nuclear-mass dependence of azimuthal beam-helicity and beam-charge asymmetries in deeply virtual Compton scattering
• Deeply virtual Compton scattering on a virtual pion target
• Accessing the Gluon Sivers Function at a future Electron-Ion Collider
• Effects of TMD evolution and partonic flavor on $e^{+}{e}^{-}$ annihilation into hadrons
• Neutron single spin asymmetries from semi-inclusive deep inelastic scattering off transversely polarized ${}^3$He
• First extraction of the $\Lambda$ polarising fragmentation function from Belle $e^{+}{e}^{-}$ data
• Mapping the Kinematical Regimes of Semi-Inclusive Deep Inelastic Scattering
• Deep exclusive charged $\pi$ electroproduction above the resonance region
• TMDs and SSAs in hadronic interactions
• Analyzing the Boer-Mulders function within different quark models
• Precise Measurements of Beam Spin Asymmetries in Semi-Inclusive ${\pi }^0$ production
• Deeply virtual Compton scattering cross section at high Bjorken $x_B$
• Azimuthal asymmetries in unpolarized SIDIS and Drell-Yan processes: a case study towards TMD factorization at subleading twist
• Single transverse-spin asymmetries in forward pion production at high energy: incorporating small-x effects in the target
• Spin asymmetries in electron-jet production at the future electron ion collider
• Collins asymmetries in inclusive charged $KK$ and $K\pi$ pairs produced in $e^{+}{e}^{-}$ annihilation
• Phenomenology of double deeply virtual Compton scattering in the era of new experiments
• Vector meson production from a polarized nucleon
• Production of two hadrons in semi-inclusive Deep Inelatic Scattering
• Phenomenology of transverse spin: past, present and future
• Can the total angular momentum of u-quarks in the nucleon be accessed at HERMES?
• Single spin asymmetries in l p --> h X processes: a test of factorization
• Large Transverse Momentum in Semi-Inclusive Deeply Inelastic Scattering Beyond Lowest Order
• Measurement of azimuthal asymmetries associated with deeply virtual Compton scattering on a longitudinally polarized deuterium target
• Transverse Lambda production at the future Electron-Ion Collider
• Left-right spin asymmetry in $\ell N^{\uparrow }\to hX$
• Beam-spin asymmetries from semi-inclusive pion electroproduction
• Single transverse spin asymmetry of prompt photon production
• Extraction of the Parton Momentum-Fraction Dependence of Generalized Parton Distributions from Exclusive Photoproduction
• Sivers asymmetry of Drell-Yan production in small-$x$ regime
• Wilson lines in transverse-momentum dependent parton distribution functions with spin degrees of freedom
• Sivers Asymmetry in Photoproduction of $J/\psi$ and Jet at the EIC
• Studies of Azimuthal Modulations in Two Hadron Fragmentation of a Transversely Polarised Quark
• Instanton contribution to the Sivers function
• Isospin Symmetry of Fragmentation Functions
• Probing Transverse Momentum Dependent Structures with Azimuthal Dependence of Energy Correlators
• Process dependence of the gluon Sivers function in $p^{\uparrow }p\to J/\psi +X$ within a TMD approach in NRQCD
• Spin asymmetries in jet-hyperon production at LHC
• Transverse $\Lambda$ Polarization in $e^{+}{e}^{-}$ collisions
• Partonic Transverse Motion in Unpolarized Semi-Inclusive Deep Inelastic Scattering Processes
• Transverse single-spin asymmetries of pion production in semi-inclusive DIS at subleading twist
• Single-Spin Observables and Orbital Structures in Hadronic Distributions
• General helicity formalism for two-hadron production in $e^{+}{e}^{-}$ annihilation within a TMD approach
• Collins Fragmentation Function within NJL-jet Model
• Measurement of pretzelosity asymmetry of charged pion production in Semi-Inclusive Deep Inelastic Scattering on a polarized ${}^3$He target
• Monte Carlo simulation of single spin asymmetries in pion-proton collisions
• The Sivers Asymmetry in Hadronic Dijet Production
• Azimuthal asymmetries of back-to-back ${\pi }^{\pm }-({\pi }^0,\eta ,{\pi }^{\pm })$ pairs in $e^{+}{e}^{-}$ annihilation
• Extraction of the higher-twist parton distribution $e(x)$ from CLAS data
• Transversity and T-odd PDFs from Drell-Yan processes with $pp$, $pD$ and $DD$ collisions
• Di-hadron fragmentation and mapping of the nucleon structure
• Transversity from two pion interference fragmentation
• Monte Carlo simulation of the Sivers effect in high-energy proton-proton collisions
• A new approach to semi-inclusive deep-inelastic scattering with QED and QCD factorization
• Rosenbluth separation of the ${\pi }^0$ Electroproduction Cross Section off the Neutron
• Hadron Tomography
• Deep exclusive electroproduction of ${\pi }^0$ at high $Q^2$ in the quark valence regime
• Sivers and $\cos 2\varphi$ Asymmetries in Semi-inclusive Deep Inelastic Scattering in Light-front Holographic Model
• Longitudinal double-spin asymmetries in semi-inclusive deep-inelastic scattering of electrons and positrons by protons and deuterons
• Transverse polarization of the $\Lambda$ hyperon from unpolarized quark fragmentation in the diquark model
• Beam single spin asymmetry of neutral pion production in semi-inclusive deep inelastic scattering
• Transverse single-spin asymmetries in proton-proton collisions at the AFTER@LHC experiment in a TMD factorisation scheme
• Several Topics on Transverse Momentum-Dependent Fragmentation Functions
• Transverse Momentum Distributions of Heavy Hadrons and Polarized Heavy Quarks
• Transverse momentum dependent twist-three result for polarized Drell-Yan processes
• Beam-helicity asymmetries for single-hadron production in semi-inclusive deep-inelastic scattering from unpolarized hydrogen and deuterium targets
• Study of worm-gear-T function $g_{1T}$ with semi-inclusive DIS data
• Semi-Inclusive ${\pi }_0$ target and beam-target asymmetries from 6 GeV electron scattering with CLAS
• Quark-Jet model for transverse momentum dependent fragmentation functions
• The $g_T(x)$ contribution to single spin asymmetries in SIDIS
• Polarized Lambda hyperon production in Semi-inclusive deep inelastic scattering off an unpolarized nulceon target
• Towards three-dimensional nucleon structures at the Electron-Ion Collider in China: A study of the Sivers function
• Collins and Sivers effects in p(transv. polarized) p --> jet pion X: Universality and process dependence
• Soft Rescattering in DIS: Effects of Helicity Flip
• Transverse $\Lambda$ polarization in $e^{+}{e}^{-}$ processes within a TMD factorization approach and the polarizing fragmentation function
• Double Spin Asymmetries $A_{LT}^{\cos {\varphi }_S}$ and $A_{LT}^{\cos (2{\varphi }_h-{\varphi }_S)}$ in semi-inclusive DIS
• First Extraction of Transverse Momentum Dependent Helicity Distributions
• Realistic estimate of valence transversity distributions from inclusive dihadron production
• Lowest order QED radiative effects in polarized SIDIS
• A Better Angle on Hadron Transverse Momentum Distributions at the EIC
• EpIC: novel Monte Carlo generator for exclusive processes
• Hadron Tomography
• Azimuthal asymmetries in single polarized proton-proton Drell-Yan processes
• Transverse single-spin asymmetries in $\ell p^{\uparrow }\to hX$ within a TMD approach: Role of quasireal photon exchange
• Reweighting the Sivers function with jet data from STAR
• First measurement of unpolarized SIDIS cross section and cross section ratios from a ${}^3$He target
• Sivers distribution functions of sea quark in proton with chiral Lagrangian
• Collins and Sivers transverse-spin asymmetries in inclusive muoproduction of ${\rho }^0$ mesons
• Chiral Dynamics of the Polarizing Fracture Functions for Baryon Production
• Final state interactions and the extraction of neutron single spin asymmetries from SIDIS by a transversely polarized ${}^3$He target
• The Fractured Boer-Mulders Effect in the Production of Polarized Baryons
• Transverse single spin asymmetry $A_{UT}^{\sin ({\varphi }_h-{\varphi }_S)}$ for single hadron production in SIDIS
• Radiative corrections to DVCS electron tensor
• Estimates for the single-spin asymmetries in $p^{\uparrow }p\to J/\psi X$ process at PHENIX RHIC and SPD NICA
• Light-Front Transverse Momentum Distributions for $\mathcal{J}$=1/2 Hadronic Systems in Valence Approximation
• Kane-Pumplin-Repko Factorization: its application to precision measurements of transverse spin asymmetries and to the study of TMD evolution
• Double Collins effect in $e^{+}{e}^{-}\to \Lambda \bar{\Lambda }X$ process in a diquark spectator model
• Analogies between hadron-in-jet and dihadron fragmentation
• Extraction of the Sivers function with deep neural networks
• The Collins asymmetry in electroproduction of Kaon at the electron ion colliders within TMD factorization
• Studies of spin-orbit correlations at JLAB
• Q^2 dependence of azimuthal asymmetries in semi-inclusive deep inelastic scattering and in Drell-Yan
• Factorized approach to radiative corrections for inelastic lepton-hadron collisions
• The Boer-Mulders Function: Models and Universality
• Measurement of $q_T$-weighted TSAs in 2015 COMPASS Drell-Yan data
• Double-spin asymmetry $A_{LT}^{\cos {\varphi }_S}$ in semi-inclusive DIS at CLAS12 and EIC within the collinear framework
• Semi-inclusive deep inelastic scattering off a tensor-polarized spin-1 target
• Single Transverse Spin Asymmetries in Semi-inclusive Deep Inelastic Scattering in a Spin-1 Diquark Model
• Effects of Quark Spin Flip on the Collins Fragmentation Function in a Toy Model
• On the beam spin asymmetries of electroproduction of charged hadrons off the nucleon targets
• Alignment function as a new kind of transverse momentum dependent functions
• Transverse target single-spin asymmetry in inclusive electroproduction of charged pions and kaons
• Parton distributions: Functional complexity and Lorentz parametrization
• Transverse spin polarization as a novel probe of medium-induced transverse-momentum-broadening effect
• On Deeply Virtual Compton Scattering at next-to-leading order
• Unified and optimal frame choice for generalized parton distributions
• Investigating the transverse momentum dependent gluon Sivers function in quarkonium production at $pp$ colliders
• Complete lowest order radiative corrections in semi-inclusive scattering of polarized particles
• Left-right asymmetry for pion and kaon production in the semi-inclusive deep inelastic scattering process
• Working With Wilson Lines
• 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
• Azimuthal asymmetries in $D$-meson and jet production at the EIC
• Probing nucleon spin structure in deep-inelastic scattering, proton-proton collisions and Drell-Yan processes
• A new approach to piecewise linear Wilson lines
• Generalized Parton Distributions of Pions. Spin Structure of Hadrons
• Quantum Number Density Asymmetries Within QCD Jets Correlated With Lambda Polarization
• $A_N$ in inclusive lepton-proton collisions: TMD and twist-3 approaches
• Toward an advanced phenomenology of $\pi N$ transition distribution amplitudes
• Single-spin asymmetries in SIDIS induced by anomalous gluon-quark and photon-quark couplings
• Quark Orbital Angular Momentum and Final State Interactions
• Extraction of finite-energy contributions to the Sivers asymmetry from the analysis of exclusive proton-proton scattering
• Parton distributions and $\cos 2{\varphi }_h$ asymmetry induced by anomalous photon-quark coupling
• Kotzinian-Mulders effect in semi-inclusive DIS within TMD factorization
• Single/Double-Spin Asymmetry Measurements of Semi-Inclusive Pion Electroproduction on a Transversely Polarized 3He Target through Deep Inelastic Scattering
• T-odd Wigner Distributions in boost-invariant longitudinal position space and Spin-momentum correlation in proton
• Spin-Directed Momentum Transfers in SIDIS Baryon Production
• Probing hard/soft factorization via beam-spin asymmetry in exclusive pion electroproduction from the proton
• Accessing Polarized Fragmentation Functions at the Unpolarized EIC and BELLE Experiments
• Assessing the impact of the electron ion collider in China on Deeply Virtual Compton Scattering
• Transversity and dihadron fragmentation functions
• Fragmentation contributions to transverse nucleon spin observables in semi-inclusive deep-inelastic scattering at NLO
• Collins asymmetries for pion-in-jet production in polarized $\ell p$ collisions at the EIC
• Transversity studies with protons and light nuclei
• Azimuthal asymmetries in exclusive four-particle "Drell-Yan" events, with lepton-antilepton plus proton-antiproton detection, in proton-antiproton scattering
• The Sivers asymmetry of vector meson production in semi-inclusive deep inelastic scattering
• Leading and higher twist transverse momentum dependent parton distribution functions in the spectator model
• Deeply virtual Compton scattering off the neutron
• Work on the interplay among $h^{+}$, $h^{-}$ and hadron pair transverse spin asymmetries in SIDIS