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    Study of tau decays to six pions and a neutrino

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    Issue Date
    2001-05
    Author
    Ammar, Raymond G.
    Bean, Alice
    Besson, David Zeke
    Zhao, X.
    Publisher
    AMERICAN PHYSICAL SOC
    Type
    Article
    Published Version
    http://publish.aps.org/
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    Abstract
    The tau decays to six-pion final states have been studied with the CLEO detector at the Cornell Electron Storage Ring. The measured branching fractions are B(tau (-) --> 2 pi (-)pi (-)3 pi (0)nu (tau)) = (2.2 +/- 0.3 +/- 0.4) X 10(-4) and B(tau (-) --> 3 pi (-)2 pi (+)pi (0)nu (tau)) = (1.7 +/- 0.7 +/- 0.2) X 10(-4). A search for substructure in these decays shows that they are saturated by intermediate states with eta or omega mesons. We present the first observation of the decay tau (-) --> 2 pi (-)pi (+)omega nu (tau) and the branching fraction is measured to be (1.2 +/- 0.2 +/- 0.1) x 10(-4). The measured branching fractions are in good agreement with the isospin expectations but somewhat below the conserved-vector-current predictions.
    URI
    http://hdl.handle.net/1808/1317
    Collections
    • Physics & Astronomy Scholarly Works [1711]
    • Center for Russian, East European, and Eurasian Studies Scholarly Publications [546]
    Citation
    Anastassov, A, Duboscq, JE, et al. Study of tau decays to six pions and a neutrino. PHYSICAL REVIEW LETTERS. May 2001. 86(20) : 4467-4471

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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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