Drell-Yan processes, transversity and light-cone wavefunctions

Abstract

The unpolarized, helicity and transversity distributions of quarks in the proton are calculated in the overlap representation of light-cone wavefunctions truncated to the lowest order Fock-space components with three valence quarks. The three distributions at the hadronic scale satisfy an interesting relation consistent with the Soffer inequality. Results are derived in a relativistic quark model including radiative corrections up to the next-to-leading order. Predictions for the double transverse-spin asymmetry in Drell-Yan dilepton production initiated by proton-antiproton collisions are presented. Asymmetries of about 20-30% are found in the kinematic conditions of the PAX experiment.

17 pages, 7 figures; version to appear in Phys. Rev. D

References in corpus (8)

• Transversity and Collins functions from SIDIS and e+e- data
• Chiral-odd generalized parton distributions in constituent quark models
• Virtual meson cloud of the nucleon and generalized parton distributions
• Transversity distribution function in hard scattering of polarized protons and antiprotons in the PAX experiment
• Dilepton production near partonic threshold in transversely polarized proton-antiproton collisions
• Monte Carlo simulation of events with Drell-Yan lepton pairs from antiproton-proton collisions: the fully polarized case
• Nonperturbative versus perturbative effects in generalized parton distributions
• Double Transverse-Spin Asymmetries in Drell-Yan Processes with Antiprotons

Cited by in corpus (40)

• Quark Wigner Distributions and Orbital Angular Momentum
• Extraction of Quark Transversity Distribution and Collins Fragmentation Functions with QCD Evolution
• Update on transversity and Collins functions from SIDIS and e+ e- data
• Transverse momentum dependent parton distributions in a light-cone quark model
• The quark orbital angular momentum from Wigner distributions and light-cone wave functions
• Transverse Charge Densities
• The transverse momentum dependent distribution functions in the bag model
• Azimuthal spin asymmetries in light-cone constituent quark models
• Sivers and Boer-Mulders functions in Light-Cone Quark Models
• Nucleon structure from basis light-front quantization
• Pion TMDs in light-front constituent approach, and Boer-Mulders effect in the pion-induced Drell-Yan process
• Transverse momentum dependent distribution functions in a covariant parton model approach with quark orbital motion
• Pretzelosity distribution function h_1T^perp and the single spin asymmetry A_UT^sin(3phi-phi_S)
• Flavor Structure of the Nucleon Sea
• Nucleon tensor charges and electric dipole moments
• Measurement of Angular Distributions of Drell-Yan Dimuons in $p+p$ Interactions at 800 GeV/c
• Are there approximate relations among transverse momentum dependent distribution functions?
• Unveiling the nucleon tensor charge at Jefferson Lab: A study of the SoLID case
• Naive time-reversal odd phenomena in semi-inclusive deep-inelastic scattering from light-cone constituent quark models
• Contact-interaction Faddeev equation and, inter alia, proton tensor charges
• Weighted azimuthal asymmetries in a diquark spectator model
• Wigner distributions and orbital angular momentum of a proton
• Modelling the nucleon structure
• Tensor charges and form factors of SU(3) baryons in the self-consistent SU(3) chiral quark-soliton model
• Generalized parton distributions and spin structures of light mesons from a light-front Hamiltonian approach
• Anomalous tensor magnetic moments and form factors of the proton in the self-consistent chiral quark-soliton model
• Spin structure of the pion from the instanton vacuum
• Drell-Yan double-spin asymmetry A_{LT} in polarized p\bar{p} collisions: Wandzura-Wilczek contribution
• Electron Structure: Shape, Size and GPDs in QED
• Azimuthal asymmetries in lepton-pair production at a fixed-target experiment using the LHC beams (AFTER)
• Collinear parton distributions and the structure of the nucleon sea in a light-front meson-cloud model
• Transverse strange quark spin structure of the nucleon
• Sivers and Collins Single Spin Asymmetries
• Double-spin asymmetries for small-Q_T Drell-Yan pair production in transversely polarized p\bar{p} collisions
• Dynamics of polarization buildup by spin filtering
• Nuclear dependences of azimuthal asymmetries in the Drell-Yan process
• Transverse Spin Effects in Future Drell-Yan Experiments
• Chiral-odd generalized parton distributions for the low-lying octet baryons
• Recent developments in nucleon spin structure with focus on h_{1L}^{\perp} and pretzelosity h_{1T}^\perp
• Spin structure of the nucleon on the light front