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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
JLAB Number: JLAB-PHY-14-2025 OSTI Number: 1346705
LANL Number: Other Number: DOE/OR/23177-4099
Associated with an experiment Yes
Experiment Number(s)
E06-002
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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