Extending Sensitivity for Low-Mass Neutral Heavy Lepton Searches

Details Extending Sensitivity for Low-Mass Neutral Heavy Lepton Searches Extending Sensitivity for Low-Mass Neutral Heavy Lepton Searches

1997-03-15

arxiv.org/abs/hep-ph/9703333v1

Phys.Rev. D56 (1997) 2970-2981

Physics

High Energy Physics

High Energy Physics - Phenomenology

14 pages, 8 figures

Scientific paper

10.1103/PhysRevD.56.2970

We point out the importance of two-body final states of weak isosinglet neutral heavy leptons predicted in several models of new physics beyond the standard model. We concentrate on muon-type neutral heavy leptons $L_\mu^0$ with mass $M<2$ GeV which can be searched for with increased sensitivity at a new round of neutrino experiments at CERN and Fermilab. Providing explicit decay rate formulae for the $e e \nu$, $e\mu \nu$, $\mu \mu \nu$, $\pi \mu$, $\rho \mu$, and $a_1\mu$ final states, we use general scaling features to estimate sensitivity of $L_\mu^0$ searches in current and future experiments, emphasizing the importance of the $\pi \mu$ decay mode.

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