Experimental setup for deeply virtual Compton scattering (DVCS) experiment in hall A at Jefferson Laboratory

The Hall A Deeply Virtual Compton Scattering (DVCS) experiment used the 5.757 GeV polarized electron beam available at Jefferson Laboratory and ran from september until december 2004. Using the standard Hall A left high resolution spectrometer three kinematical points were taken at a fixed xbjorken = 0.32 value for three Q2 values : 1.5 GeV 2, 1.91GeV 2, 2.32 GeV 2. An electromagnetic Lead Fluoride calorimeter and a proton detector scintillator array designed to work at a luminosity of 1037cm−2s−1 were added to ensure the exclusivity of the DVCS reaction. In addition to the new detectors new custom electronics was used : a calorimeter trigger module which determines if a electron photon coincidence has occured and a sampling system allowing to deal with pile-up events during the offline analysis. Finally the data from the kinematic at Q2=2.32 GeV2 et s=5.6GeV2 allowed to get a preliminary result for the exclusive π0 electroproduction on the proton.

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Additional Info

Field Value
Source https://theses.hal.science/tel-00683591
Author Camsonne, A.
Maintainer CCSD
Last Updated May 23, 2026, 05:20 (UTC)
Created May 23, 2026, 05:20 (UTC)
Identifier NNT: 2005CLF21606
Language fr
Rights https://about.hal.science/hal-authorisation-v1/
contributor Laboratoire de Physique Corpusculaire - Clermont-Ferrand (LPC) ; Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
creator Camsonne, A.
date 2005-11-04T00:00:00
harvest_object_id 9db7072e-6c08-4d2a-ac79-ef2733f211cd
harvest_source_id 3374d638-d20b-4672-ba96-a23232d55657
harvest_source_title test moissonnage SELUNE
metadata_modified 2024-04-11T00:00:00
set_spec type:THESE