A consistent interpretation of the Karmen anomaly

J.-M. Levy (1) , F. Vannucci (1)

1 LPNHE - Laboratoire de Physique Nucléaire et de Hautes Énergies

The Karmen anomaly can be interpreted as being due to a heavy neutrino of mass around 137 MeV produced in $\pi_{e 2}$ decays. This interpretation is consistent with the present limits on the couplings of such an object.

Domaines: Physique des Hautes Energies - Phénoménologie [hep-ph]

J.-M. Levy, F. Vannucci. A consistent interpretation of the Karmen anomaly. 2000. ⟨in2p3-00085345⟩