Published September 25, 1989 | Version v1
Journal article

Search for unstable heavy neutral leptons in e+e- annihilations at √s from 50 to 60.8 GeV

Description

A search for unstable heavy neutral leptons has been made at center-of-mass energies from 50 to 60.8 GeV with the AMY detector at the KEK Storage ring TRISTAN. The neutral leptons are assumed to decay via mixing to electrons and muons. Events with two leptons were searched for. No evidence for their existence was found. Limits in the mass range 7.8≤ML0≤28.1 GeV/c2 and mixing-parameter range 9x10-10≤|UlL|2≤1 are presented for Dirac- and Majorana-type neutrinos

Additional details

Publishing Information

Journal Title
Physical Review Letters
Journal Volume
63
Journal Issue
13
Series
Phys. Rev. Lett.
Journal Page Range
1342-1345
ISSN
0031-9007
CODEN
PRLTA