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        <identifier>oai:www.ideals.illinois.edu:2142/30761</identifier>
        <datestamp>2023-07-10</datestamp>
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        <thesis xmlns="http://www.ndltd.org/standards/metadata/etdms/1.1/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:dc="http://purl.org/dc/elements/1.1/" xsi:schemaLocation="http://www.ndltd.org/standards/metadata/etdms/1.1/ http://www.ndltd.org/standards/metadata/etdms/1.1/etdms11.xsd http://purl.org/dc/elements/1.1/ http://www.ndltd.org/standards/metadata/etdms/1.1/etdmsdc.xsd">
          <dc:contributor>Frauenfelder, Hans</dc:contributor>
          <dc:creator>Potter, James Martin</dc:creator>
          <dc:date>2012-04-26T17:49:06Z</dc:date>
          <dc:date>2012-04-26T17:49:06Z</dc:date>
          <dc:date>10000-01-01</dc:date>
          <dc:date>1975</dc:date>
          <dc:description>An experiment has been performed at the Los Alamos Scientific Laboratory tandem Van de Graaff to test the conservation of parity in proton-proton scattering. A parity violating effect was sought bv measuring the correlation bet\&lt;1een the total p-p cross section and the he1icity of the incident beam.
The experiment used integral counting techniques to achieve the high data rate required. The Van de Graaff Lamh-shift polarized ion source was modified to permit reversing the direction of polarization at a 1 kHz rate. The experiment used analog signal processing; the corre1at1.on between the cross section and the beam he1icity was measured using a phase-locked amplifier.
The means for rapidly reversing the beam polarization and the methods for reduction of systematic errors are discussed. The measured longitudinal asymmetry AL=(δ+-δ_)/(δ++δ_) for p-p scattering at 15 MeV is (-1.8 ± 2.0) X 10-7 and the 95% confidence 6x 10-7 including the effects of systematic errors.</dc:description>
          <dc:description>Submitted by Megan O'Donnell (mnodonn2@illinois.edu) on 2012-04-26T17:49:06Z
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  Previous issue date: 1975</dc:description>
          <dc:description>Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Megan O'Donnell (mnodonn2@illinois.edu) on 2012-04-26T17:49:06Z
Item is restricted indefinitely.</dc:description>
          <dc:description>Restriction data tranferred 2014-07-01T11:33:02-05:00
Original Data
Group with Access UIUC Users [automated]
Release Date: none
Reason: dissertation/thesis</dc:description>
          <dc:description>dissertation/thesis</dc:description>
          <dc:description>U of I Only</dc:description>
          <dc:identifier>2674228</dc:identifier>
          <dc:identifier>http://hdl.handle.net/2142/30761</dc:identifier>
          <dc:language>en</dc:language>
          <dc:rights>© 1975 James Martin Potter</dc:rights>
          <dc:subject>proton-proton scattering</dc:subject>
          <dc:subject>decay parity</dc:subject>
          <dc:subject>necleon-necleon scattering</dc:subject>
          <dc:subject>parity non-conservation</dc:subject>
          <dc:title>A test of parity conservation in proton-proton scattering at 15 MeV</dc:title>
          <dc:type>Dissertation / Thesis</dc:type>
          <dc:type>text</dc:type>
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            <department>Physics</department>
            <discipline>Physics</discipline>
            <disciplineCode>University of Illinois at Urbana-Champaign</disciplineCode>
            <level>Dissertation</level>
            <name>Ph.D.</name>
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