STI Publications - View Publication Form #14757
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Publication Information
Title | Measurement of the Parity Violating Asymmetry inElastic Electron Scattering off 208Pb | ||||
Abstract | The Lead Radius Experiment (PREX) was carried out in order to provide a model-independent measurement of the RMS radius sqrt(r-2/n) of the neutron distribution in the 208Pb nucleus. The parity-violating scattering asymmetry for longitudinally polarized 1.06 GeV electrons from an unpolarized 208Pb target was measured at Q2 = 0.00880 GeV2. This measurement was performed by the PREX collaboration in Hall A at Jefferson Laboratory in Newport News, VA, between March and June, 2010. The electron detectors used in this measurement were designed and fabricated by University of Massachusetts-Amherst and Smith College. The resulting parity-violating asymmetry was measured as APV = 656±60(stat.)±14(sys.) ppb. This asymmetry extrapolates to a difference in radii between the nuclear neutron and proton distributions of sqrt(r-2/n)-sqrt(r-2/p)=0.33^+0.16/¿0.18 fm. | ||||
Author(s) | Jonathan Wexler | ||||
Publication Date | May 2014 | ||||
Document Type | Thesis | ||||
Primary Institution | Thomas Jefferson National Accelerator Facility, Newport News | ||||
Affiliation | Exp Nuclear Physics / Experimental Halls / Hall A | ||||
Funding Source | Nuclear Physics (NP) | ||||
Proprietary? | No | ||||
This publication conveys | Technical Science Results | ||||
Document Numbers |
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Associated with an experiment | Yes | ||||
Experiment Number(s) |
E06-002
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Associated with EIC | No | ||||
Supported by Jefferson Lab LDRD Funding | No |
Thesis
Thesis Type | PhD |
Advisor | Institution |
1. Robert Michaels | JLab |
Attachments/Datasets/DOI Link
Document(s) |
wexler dissertation.pdf
(STI Document)
|
Dataset(s) | (none) |
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