Spin-Orbit Correlations in Kaon SIDIS at JLab

Conference · Sat Aug 01 04:00:00 EDT 2009 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3215711· OSTI ID:2000047

Avakian, H.; Hafidi, K.

We present studies of the transverse momentum dependence of valence quark transverse and longitudinal spin distributions through measurements of spin-azimuthal asymmetries in Semi-Inclusive Deep Inelastic Scattering (SIDIS) of kaons using the upgraded JLab 11 GeV polarized electron beam and the CLAS12 detector with longitudinally polarized proton and deuteron targets. Measurements with kaons are complementary to measurements with pions and will provide additional information on the Collins fragmentation mechanism. The PT dependence of the double spin asymmetry provides additional information on the flavor and polarization dependence of transverse-momentum-dependent helicity distributions of quarks, which provides complementary to the Single-Spin Asymmetry (SSA) measurements access to spin-orbit correlations. The large acceptance of CLAS12 would allow simultaneous detection of scattered electrons and leading hadrons, providing information on the struck quark's flavor and transverse momentum.

• Research Organization: Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Nuclear Physics (NP)
• DOE Contract Number: AC05-06OR23177
• OSTI ID: 2000047
• Report Number(s): JLAB-PHY-09-1090; DOE/OR/23177-1044
• Conference Information: Journal Name: AIP Conference Proceedings Journal Issue: 1 Journal Volume: 1149
• Country of Publication: United States
• Language: English