Branching Fraction for Z decays to four leptons and constraints on new physics

ORAL

Abstract

The LHC experiments have measured the branching fraction for Z decays to four leptons (electrons or muons). We have combined these measurements for a precise comparison to the standard model value. This comparison leads to an upper limit on anomalous contributions to this decay, and limits on new physics.

*DOE Grant DE-SC0015910

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Authors

  • Jessica Rainbolt

    • Northwestern University

  • Michael Schmitt

    • Northwestern Univ
    • Northwestern University