The Solenoid Large Intensity Device (SoLID) for JLab 12 GeV
Résumé
The Solenoid Large Intensity Device (SoLID) is a new experimental apparatus planned for Hall A at the Thomas Jefferson National Accelerator Facility (JLab). SoLID will combine large angular and momentum acceptance with the capability to handle very high data rates at high luminosity. With a slate of approved high-impact physics experiments, SoLID will push JLab to a new limit at the QCD intensity frontier that will exploit the full potential of its 12 GeV electron beam. In this paper, we present an overview of the rich physics program that can be realized with SoLID, which encompasses the tomography of the nucleon in 3-D momentum space from Semi-Inclusive Deep Inelastic Scattering (SIDIS), expanding the phase space in the search for new physics and novel hadronic effects in parity-violating DIS (PVDIS), a precision measurement of $J/\psi$ production at threshold that probes the gluon field and its contribution to the proton mass, tomography of the nucleon in combined coordinate and momentum space with deep exclusive reactions, and more. To meet the challenging requirements, the design of SoLID described here takes full advantage of recent progress in detector, data acquisition and computing technologies. In addition, we outline potential experiments beyond the currently approved program and discuss the physics that could be explored should upgrades of CEBAF become a reality in the future.
Mots clés
J/psi(3100): electroproduction
threshold
deep inelastic scattering: semi-inclusive reaction
D: momentum
Jefferson Lab
deeply virtual Compton scattering
generalized parton distribution: parametrization
nucleon: structure function
parton: distribution function
solenoid
exclusive reaction
accelerator
data acquisition
gluon
precision measurement
phase space
quantum chromodynamics
detector: design
proposed experiment
electron nucleus: deep inelastic scattering
polarized target: transverse
p: mass
Newport News CEBAF Linac: upgrade
luminosity: high
momentum: acceptance
effect: hadronic
effect: higher-twist
electron: beam
new physics: search for
parity: violation
charge: asymmetry