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

J. Lovelace Rainbolt, Michael Schmitt

Research output: Contribution to journalArticle

1 Scopus citations

Abstract

The LHC experiments have measured the branching fraction for Z decays to four leptons (electrons or muons). We have combined these measurements with the result B(Z→4)=(4.58±0.26)×10-6, allowing a precise comparison to the standard model prediction of (4.70±0.03)×10-6. We use a minimal extension of the standard model to demonstrate that this combined value may be used to set stringent limits on new physics.

Original languageEnglish (US)
Article number013004
JournalPhysical Review D
Volume99
Issue number1
DOIs
StatePublished - Jan 1 2019

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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