Abstract
We report on the first direct observation of a neutrino induced charged-current interaction with two subsequent decays of short-lived particles close to the interaction vertex. This rare double-kink signature in the CHORUS emulsion target is interpreted as a Ds*+ production followed by the decay chain Ds*+ → Ds+ γ, Ds+ → τ+ vτ, τ+ → μ+ vμ vτ̄. The event is characterised by small Q2 and small four-momentum transfer squared t to the target nucleon, which indicates a diffractive production mechanism. A complete analysis of the event is presented.
Original language | English |
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Pages (from-to) | 458-464 |
Number of pages | 7 |
Journal | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics |
Volume | 435 |
Issue number | 3-4 |
DOIs | |
Publication status | Published - 1998 Sept 10 |
Externally published | Yes |
ASJC Scopus subject areas
- Nuclear and High Energy Physics