Performance of the BigBite Spectrometer during the Neutron Transversity Experiment in Hall-A

Conference · Fri May 01 04:00:00 EDT 2009

OSTI ID:1999615

Allada, Kalyan

The Hall-A E06-010 collaboration at Jefferson Lab recently measured the neutron target single spin asymmetry(SSA) in the semi-inclusive deep inelastic $$^{3}He^{\uparrow}(e,e'\pi^{+/-})X$$ reactions with a transversely polarized $^3$He target. A high-resolution spectrometer was used to detect pions in coincidence with the scattered electrons detected in the large acceptance BigBite spectrometer. The kinematical range, $$x = 0.13\sim 0.41$$, at $$Q^2=1.31\sim3.10~(\mathrm{GeV}/c)^2$$, focuses on the valence quark region. SSA data from this experiment will provide important information to extract the quark transversity distribution in semi-inclusive deep inelastic scattering. In this talk the performance of the BigBite spectrometer and trigger setup will be presented along with the progress on the data analysis.

• 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: 1999615
• Report Number(s): JLAB-PHY-09-971; DOE/OR/23177-0819
• Country of Publication: United States
• Language: English