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    Test of QED to fourth order by study of four-lepton final states in e(+)e(−) interactions at 29 GeV with the HRS detector

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    Baringer_10-1-1990.pdf (393.8Kb)
    Issue Date
    1990-10-01
    Author
    Baringer, Philip S.
    Publisher
    American Physical Society
    Type
    Article
    Article Version
    Scholarly/refereed, publisher version
    Metadata
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    Abstract
    Data taken with the High Resolution Spectrometer detector at the SLAC storage ring PEP were used to test QED to fourth order in the coupling constant α. The experiment studied four-lepton final states produced at high Q(2) in e(+)e(−) interactions at s√=29 GeV. All four final-state particles were detected at large angles with respect to the beam axis. We observed 17 e(+)e(−)e(+)e(−), 24 e(+)e(−)μ(+)μ(−), and 1 μ(+)μ(−)μ(+)μ(−) events with pair masses greater than 1 GeV/c(2) for an integrated luminosity of 291 pb(−1). The complete α(4) QED calculation agrees reasonably well with the data.
    Description
    This is the publisher's version, also available electronically from http://journals.aps.org/prd/abstract/10.1103/PhysRevD.42.2180.
    URI
    http://hdl.handle.net/1808/15252
    DOI
    https://doi.org/10.1103/PhysRevD.42.2180
    ISSN
    1550-7998
    Collections
    • Physics and Astronomy Scholarly Works [1134]
    Citation
    Baringer, Philip S. et al. "Test of QED to fourth order by study of four-lepton final states in e(+)e(−) interactions at 29 GeV with the HRS detector." Physical Review D, 1990(42):2180. http://dx.doi.org/10.1103/PhysRevD.42.2180

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    Contact KU ScholarWorks
    785-864-8983
    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    785-864-8983

    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    Image Credits
     

     

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