Deeply Virtual Pseudoscalar Meson Production at Jefferson Lab and Transversity GPDs

Conference · Mon Feb 01 04:00:00 EST 2016 · Int. J. Mod. Phys. Conf. Ser.

DOI:https://doi.org/10.1142/9789812796950_0020· OSTI ID:1242483

Kubarovsky, Valery P. ^[1]

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1. Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)

Transverse-momentum dependent parton distribution functions (TMDs) provide a description of nucleon structure in terms of the parton transverse momentum and its transverse spin. At leading twist there are eight TMDs, each offering a unique feature of quarks in a polarized or an unpolarized nucleon. The Sivers distribution is one of the most interesting TMD due to its non-universality. It has been extracted using the data from semi-inclusive deep-inelastic scattering (SIDIS), but there is no data yet from spin-dependent Drell-Yan (DY) process. Such measurement will provide a crucial test of TMD formalism which predicts an equal magnitude and opposite sign for the Sivers function extracted from SIDIS and DY process. We will discuss key future measurements of TMDs using both SIDIS and DY process with a focus on Hall A SoLID SIDIS program at Jefferson Lab.

• Research Organization: Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
• OSTI ID: 1242483
• Report Number(s): JLAB-PHY-15-2011; DOE/OR/23177-3393; arXiv:1601.04367
• Conference Information: Journal Name: Int. J. Mod. Phys. Conf. Ser. Journal Volume: 40
• Country of Publication: United States
• Language: English