Title :
Magnetic System for the CLAS12 Proposal
Author :
Statera, Marco ; Contalbrigo, Marco ; Pappalardo, Luca ; Barion, L. ; Bertelli, S. ; Ciullo, Giuseppe ; Lenisa, Paolo
Author_Institution :
INFN, Univ. di Ferrara, Ferrara, Italy
Abstract :
The conceptual design of a magnetic system for an experiment to measure the transverse spin effects in semi-inclusive Deep Inelastic Scattering (SIDIS) at 11 GeV with a transversely polarized target using the CLAS12 detector at Jefferson Lab is presented. A proposal has been submitted to study spin azimuthal asymmetries in SIDIS using an 11-GeV polarized electron beam from the upgraded CEBAF facility and the CLAS12 detector equipped with a transversely polarized target. The main focus of the experiment will be the measurement of transverse target single and double spin asymmetries in the reaction ep↑ → ehX, where e is an electron, p↑ is transversely polarized proton, h is a meson (e.g., a pion or a kaon) and X is the undetected final state. The details of the conceptual design of the shielding magnetic system and transverse dipole are reported.
Keywords :
deep inelastic scattering; electron beams; magnetic shielding; meson spin; nuclear electronics; nuclear spin; proton polarisation; superconducting magnets; CLAS12 detector; CLAS12 proposal; Jefferson Lab; SIDIS; conceptual design; double spin asymmetry; electron volt energy 11 GeV; meson; polarized electron beam; semiinclusive deep inelastic scattering; shielding magnetic system; spin azimuthal asymmetry; transverse dipole; transverse spin effects; transverse target single spin asymmetry; transversely polarized proton; transversely polarized target; upgraded CEBAF facility; Coils; Detectors; Magnetic noise; Magnetic shielding; Solenoids; Superconducting magnets; Wires; High energy physics detector; NbTi; magnetic system; superconducting magnets; transverse polarized target;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2012.2234204
