Measurement of the Parity-Violating Asymmetries in Electron-Deuteron Scattering in the Nucleon Resonance Region

Journal Article · Thu Aug 22 00:00:00 EDT 2013 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.111.082501· OSTI ID:1091791

Wang, Diancheng ^[1]; Pan, Kai ^[2]; Subedi, Ramesh R. ^[3]; Deng, Xiaoyan ^[4]

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1. Univ. of Virginia, Charlottesville, VA (United States)
2. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
3. George Washington Univ., Washington, DC (United States)
4. Univ. of Virginia, Charlottesville, VA (United States). et al.

We report on parity-violating asymmetries in the nucleon resonance region measured using 5 - 6 GeV longitudinally polarized electrons scattering off an unpolarized deuterium target. These results are the first parity-violating asymmetry data in the resonance region beyond the Δ(1232), and provide a verification of quark-hadron duality in the nucleon electroweak γ Z interference structure functions at the (10-15)% level. The results are of particular interest to models relevant for calculating the γ Z box-diagram corrections to elastic parity-violating electron scattering measurements.

• Research Organization: Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• Contributing Organization: Jefferson Lab Hall A Collaboration
• Grant/Contract Number: AC02-06CH11357; AC05-06OR23177; SC0003885
• OSTI ID: 1091791
• Report Number(s): DOE/OR/23177-2548; JLAB-PHY-13-1726; arXiv:1304.7741
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 08 Vol. 111; ISSN 0031-9007
• Publisher: American Physical Society (APS)
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS