First observation of neutrino trident production
Abstract
We report on the first observation of neutrino induced production of muon pairs in the electromagnetic field of a nucleus. The data has been obtained using the CHARM II detector exposed to the CERN wideband neutrino and antineutrino beams. A clear signal of 55 ± 16 events is seen in a sample of dimuons of opposite charge without visible recoil at the vertex. The cross section is determined and found to be in agreement with the standard model prediction.
- Publication:
-
Physics Letters B
- Pub Date:
- August 1990
- DOI:
- 10.1016/0370-2693(90)90146-W
- Bibcode:
- 1990PhLB..245..271G