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    Archive - EP Seminar (until 2008)

    Precise measurements of <i>K<sub>S</sub> to gamma gamma</i> and <i>K<sub>L</sub>to pi<sup>0</sup> gamma gamma</i> and other new results from NA48

    by Ivan Mikulec (CERN-EP)

    → Europe/Zurich
    500/1-001 - Main Auditorium (CERN)

    500/1-001 - Main Auditorium

    CERN

    400
    Show room on map
    Description
    Precision measurements of parameters of the rare decays KSto gamma gamma and KLto pi0gamma gamma will be presented. These two decays are related through common NLO corrections in the Chiral Perturbation Theory. The accuracy of few percent of the presented results represents an important precision test of this theory. New measurements of eta and K0 masses as well as KS lifetime will also be presented. They are by-products of the Re(epsilon'/epsilon) analysis and have precisions superior to present PDG values. The eta mass measured by NA48 differs by 4sigma from the actual world average.

    Organiser(s): Ariane Frey / EP Division

    Note: Tea & coffee will be served at 16.00 hrs.