The unpolarized semi-inclusive deep-inelastic scattering (SIDIS) differential cross sections in 3He(e,eπ±)X have been measured for the first time in Jefferson Lab experiment E06-010 with a 5.9 GeV e beam on a 3He gas target. The experiment focuses on the valence quark region, covering a kinematic range 0.12 < xbj < 0.45, 1 < Q2 < 4 (GeV/c)2, 0.45 < zh < 0.65, and 0.05 < Pt < 0.55 GeV/c. The extracted SIDIS differential cross sections of π± production are compared with existing phenomenological models while the 3He nucleus approximated as two protons and one neutron in a plane-wave picture, in multidimensional bins. Within the experimental uncertainties, the azimuthal modulations of the cross sections are found to be consistent with zero.

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Published in Physical Review C, v. 95, issue 3, 035209, p. 1-27.

©2017 American Physical Society

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Due to the large number of authors, only the first 30 and the authors affiliated with the University of Kentucky are listed in the author section above. For the complete list of authors, please download this article or visit: https://doi.org/10.1103/PhysRevC.95.035209

This group of authors is collectively known as the Jefferson Lab Hall A Collaboration.

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This work was supported in part by the US National Science Foundation, and by Department of Energy (DOE) contract number DE-AC05-06OR23177, under which the Jefferson Science Associates operates the Thomas Jefferson National Accelerator Facility. This work was also supported in part by the US Department of Energy under Contract DE-FG02-03ER41231 and the National Natural Science Foundation of China No. 11120101004.

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