Quark-Hadron Duality of Spin Structure Functions in CLAS EG1b Data

The hypothesis of quark-hadron duality infers that physical observables of nucleons can be described by a complete set of basis states using either hadronic or quark degrees of freedom. In the EG1b experiment in Hall-B at Jefferson Lab, polarized electrons with energies of 1.6, 2.5, 4.2 and 5.7 GeV...

Full description

Saved in:
Bibliographic Details
Published in:Few-body systems 2018-11, Vol.59 (6), p.1-6, Article 108
Main Author: Fersch, R. G.
Format: Article
Language:English
Subjects:
Atomic
Hadrons
Heavy Ions
Kinematics
Molecular
NSTAR 2017
Nuclear Physics
Nucleons
Optical and Plasma Physics
Parameterization
Particle and Nuclear Physics
Physics
Physics and Astronomy
Quarks
Spin structure
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The hypothesis of quark-hadron duality infers that physical observables of nucleons can be described by a complete set of basis states using either hadronic or quark degrees of freedom. In the EG1b experiment in Hall-B at Jefferson Lab, polarized electrons with energies of 1.6, 2.5, 4.2 and 5.7 GeV were scattered from proton and deuteron targets ( 15 NH 3 and 15 ND 3 dynamically polarized along the beam direction) and detected with CEBAF large acceptance spectrometer. Nucleon spin structure functions g 1 and g 2 were measured over a wide kinematic range ( 0.05 GeV 2 < Q 2 < 5 GeV 2 and 1.08 GeV < W < 3 GeV ). These recently published data strongly constrain parametrization of world data in the resonance region, allowing comprehensive tests of Bloom–Gilman duality for polarized nucleons over a wide kinematic range.
ISSN:0177-7963
1432-5411
DOI:10.1007/s00601-018-1429-0