A fitter code for Deep Virtual Compton Scattering and Generalized Parton Distributions |
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Authors: | M Guidal |
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Institution: | (1) Institut de Physique Nucléaire d’Orsay, 91405 Orsay, France |
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Abstract: | We have developed a fitting code based on the leading-twist handbag Deep Virtual Compton Scattering (DVCS) amplitude in order
to extract Generalized Parton Distribution (GPD) information from DVCS observables in the valence region. In a first stage,
with simulations and pseudo-data, we show that the full GPD information can be recovered from experimental data if enough
observables are measured. If only some of these observables are measured, valuable information can still be extracted, with
certain observables being particularly sensitive to certain GPDs. In a second stage, we make a practical application of this
code to the recent DVCS Jefferson Lab Hall-A data from which we can extract numerical constraints for the two H GPD Compton form factors.
An erratum to this article can be found at |
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Keywords: | PACS" target="_blank">PACS 13 60 Fz Elastic and Compton scattering 13 60 Hb Total and inclusive cross-sections (including deep-inelastic processes) 12 38 Qk Experimental tests |
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