Proceedings of the 21st International Symposium on Spin Physics (SPIN2014); Peking University, China, 20–24 October 2014; Editors: Haiyan Gao and Bo-Qiang Ma — Session 3Open Access

Key Future Measurements of TMDs at Jefferson Lab and Other Facilities

Kalyan Allada

Kalyan Allada

Laboratory of Nuclear Science, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA

E-mail Address: allada@mit.edu

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https://doi.org/10.1142/S2010194516600351Cited by:0 (Source: Crossref)

Abstract

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.

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Published: 29 February 2016

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This is an Open Access article published by World Scientific Publishing Company. It is distributed under the terms of the Creative Commons Attribution 3.0 (CC-BY) License. Further distribution of this work is permitted, provided the original work is properly cited.

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Key Future Measurements of TMDs at Jefferson Lab and Other Facilities

Abstract

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