Timelike Compton Scattering - A First Look

Journal Article · Thu Dec 17 00:00:00 EST 2009 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3293939· OSTI ID:21325761

Nadel-Turonski, P; Klein, F J ^[1]; Horn, T ^[1]; Ilieva, Y ^[2]; Paremuzyan, R ^[3]; Stepanyan, S ^[3]

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1. Catholic University of America, Washington, DC 20064 (United States)
2. University of South Carolina, Columbia, SC 29208 (United States)
3. Thomas Jefferson National Accelerator Facility, Newport News, VA 23606 (United States)

A major goal of the 12 GeV upgrade at Jefferson Lab is to map out the Generalized Parton 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{sup 2}. The first measurements of TCS have recently been carried out in Hall B at Jefferson Lab, using both tagged and untagged photon beams.

• OSTI ID: 21325761
• Journal Information: AIP Conference Proceedings, Vol. 1182, Issue 1; Conference: 10. conference on the intersections of particle and nuclear physics, San Diego, CA (United States), 26-31 May 2009; Other Information: DOI: 10.1063/1.3293939; (c) 2009 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CEBAF ACCELERATOR
COMPTON EFFECT
CORRECTIONS
DISTRIBUTION
FORM FACTORS
FOUR MOMENTUM TRANSFER
GEV RANGE
GLUONS
PARTICLE PRODUCTION
PHOTON BEAMS
QUARKS