[Sbs] DNP abstract for neutron SIDIS experiment

Andrew Puckett puckett at jlab.org
Mon Jul 1 12:13:51 EDT 2013


Hello SBS collaborators,

Sorry for the short notice; here is my abstract for DNP13 on the neutron transversity experiment using BB+SBS. Comments welcome before the submission deadline of 5 pm.

Title: Transverse neutron spin structure using BigBite and Super BigBite spectrometers in Jefferson Lab's Hall A

New insight into nucleon structure has come from the study of Semi-Inclusive Deep Inelastic Scattering (SIDIS). Detection of leading hadrons associated with the fragmentation of the struck quark in lepton-nucleon DIS at moderate transverse momenta provides access to the transverse momentum dependent parton distributions of the nucleon (TMDs). The transverse target single-spin asymmetries (SSAs) in SIDIS are of particular interest due to their sensitivity to the chiral odd transversity distribution and the ``naive T-odd'' Sivers distribution. The Super BigBite Spectrometer (SBS), currently under construction for use in Jefferson Lab's Hall A following the 12 GeV upgrade of CEBAF, is capable of detecting forward-angle hadrons with a large solid-angle coverage at high luminosity, and is well-suited for the study of SIDIS reactions. Recently approved experiment E12-09-018 will use the SBS equipped with half of the RICH detector from the HERMES experiment for hadron detection, the
   existing BigBite spectrometer in Hall A for electron detection, and an upgraded polarized $^3He$ target to measure the transverse target SSAs in electron-neutron DIS with unprecedented precision. This talk will present the experiment goals, kinematics, apparatus, and projected results.

Best regards,
Andrew

-- 
Andrew J. R. Puckett
Hall B 12 GeV Staff Scientist
Jefferson Lab
MS 12H, Room A102
12000 Jefferson Ave
Newport News, VA 23606
(757) 269-5023 (office)
(757) 814-9810 (home/cell)





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