Timelike Compton Scattering-A First Look

A major goal of the 12 GeV upgrade at Jefferson Lab is to map out the Generalized Partem Distributions (GPDs) in the valence region. This is primarily done through Deeply Virtual Compton Scattering (DVCS), which provides the simplest and cleanest way of accessing the GPDs. However, the 'inverse...

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Bibliographic Details
Published in:AIP conference proceedings 2009-01, Vol.1182 (1), p.843-846
Main Authors: Nadel-Turonski, P, Horn, T, Ilieva, Y, Klein, F J, Paremuzyan, R, Stepanyan, S
Format: Article
Language:English
Subjects:
CEBAF ACCELERATOR
COMPTON EFFECT
CORRECTIONS
DISTRIBUTION
FORM FACTORS
FOUR MOMENTUM TRANSFER
GEV RANGE
GLUONS
PARTICLE PRODUCTION
PHOTON BEAMS
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
QUARKS
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Summary:A major goal of the 12 GeV upgrade at Jefferson Lab is to map out the Generalized Partem Distributions (GPDs) in the valence region. This is primarily done through Deeply Virtual Compton Scattering (DVCS), which provides the simplest and cleanest way of accessing the GPDs. However, the 'inverse' process, Timelike Compton Scattering (TCS), can provide an important complement, in particular for measuring the real part of the amplitude and understanding corrections at finite Q(2). The first measurements of TCS have recently been carried out in Hall B at Jefferson Lab, using both tagged and untagged photon beams.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.3293939