Exclusive electroproduction of vector mesons and transversity distributions
arXiv:hep-ph/9808479 · doi:10.1103/PhysRevD.59.034023
Abstract
We show that the leading twist contribution to exclusive electroproduction of transversely polarized vector mesons vanishes at all orders in perturbation theory. Therefore one cannot extract information on the quark transversity distribution of the nucleon from this reaction. In turn one has that the produced vector meson is purely longitudinal in the large-Q^2 limit, which provides a new test of the dominance of leading twist at finite Q^2.
8 pages, 2 figures
References in corpus (5)
- Probing partonic structure in gamma* gamma -> pi pi near threshold
- One-Loop Corrections and All Order Factorization In Deeply Virtual Compton Scattering
- Helicity-Flip Off-Foward Parton Distributions of the Nucleon
- Time ordering in off-diagonal parton distributions
- Summary of the Diffractive Working Group at DIS98
Cited by in corpus (48)
- Generalized Parton Distributions
- Unraveling hadron structure with generalized parton distributions
- A Large Hadron Electron Collider at CERN: Report on the Physics and Design Concepts for Machine and Detector
- Deeply virtual electroproduction of photons and mesons on the nucleon : leading order amplitudes and power corrections
- Generalized parton correlation functions for a spin-1/2 hadron
- On the analysis of lepton scattering on longitudinally or transversely polarized protons
- Generalized parton correlation functions for a spin-0 hadron
- Chiral-odd generalized parton distributions in constituent quark models
- Quark helicity flip generalized parton distributions from two-flavor lattice QCD
- Novel Transversity Properties in Semi-Inclusive Deep Inelastic Scattering
- Probing chiral-odd GPD's in diffractive electroproduction of two vector mesons
- Nucleon Tensor Charge from Exclusive Electroproduction
- QCD factorization of exclusive processes beyond leading twist: gamma*T -> rhoT impact factor with twist three accuracy
- A phenomenological study of helicity amplitudes of high energy exclusive leptoproduction of the rho meson
- Transversity Distribution Does Not Contribute to Hard Exclusive Electroproduction of Mesons
- Transversity in exclusive vector-meson leptoproduction
- Saturation effects in exclusive rhoT, rhoL meson electroproduction
- Photoproduction of a pi rhoT pair with a large invariant mass and transversity generalized parton distribution
- Exclusive meson pair production in gamma* gamma scattering at small momentum transfer
- On the description of exclusive processes beyond the leading twist approximation
- Transversity generalized parton distributions for the deuteron
- Tomography of light mesons in light-cone quark model
- Neutrino-production of a charmed meson and the transverse spin structure of the nucleon
- Transition distribution amplitudes and hard exclusive reactions with baryon number transfer
- Generalized parton distributions and transversity from full lattice QCD
- An introductory lecture on Generalised Parton Distributions
- Exclusive neutrino-production of a charmed meson
- Probing the nucleon's transversity and the photon's distribution amplitude in lepton pair photoproduction
- Polynomiality of helicity off-forward distribution functions in the chiral quark-soliton model
- Determination of generalized parton distributions through a simultaneous analysis of axial form factor and wide-angle Compton scattering data
- Generalized Parton Distributions from charged current meson production
- Model study of generalized parton distributions with helicity flip
- Hard exclusive neutrino production of a light meson
- Exploring twist-4 chiral-even GPDs in the light-front quark-diquark model
- Towards Phonon-Like Excitations of Instanton Liquid
- Transverse strange quark spin structure of the nucleon
- Explicit Proof that Electroproduction of Transversely Polarized Vector Mesons Vanishes in Perturbative QCD
- Wigner distributions and GTMDs in a proton using light-front quark-diquark model
- Probing the transversity spin structure of a nucleon in neutrino-production of a charmed meson
- Crossed channel analysis of quark and gluon generalized parton distributions with helicity flip
- Revealing transversity GPDs through the photoproduction of a photon and a meson
- Diffractive two-meson electroproduction with a nucleon and deuteron target
- Chiral-odd pion generalized parton distributions beyond leading twist
- GPDs from charged current meson production in experiments
- Hard exclusive reactions and hadron structure
- Probing quark transversity GPDs in diffractive photo- and electroproduction on the deuteron
- Exploring GPDs through the photoproduction of a pair
- New ways to access the transverse spin content of the nucleon