Observation of the photoproduction of a D-bar/sup 0/D/sup 0/ pair of charmed mesons

Journal Article · Tue Oct 20 04:00:00 EDT 1981 · JETP Lett. (Engl. Transl.); (United States)

OSTI ID:5521558

An interesting event has been observed in an experiment on the production of charmed particles by tagged photons from the CERN supersynchrotron. The event was detected simultaneously in a nuclear emulsion and by the Omega Prime magnetic spectrometer. It is interpreted as the first observed case of the photoproduction of a pair of charmed neutral mesons, D-bar/sup 0/D/sup 0/. A decay time tau(D-bar/sup 0/) = (0.14 +- 0.01)x10/sup -13/ s has been found for the decay D-bar/sup 0/..-->..K/sup +/..pi../sup -/..pi../sup -/..pi../sup +/, while two solutions have been found for the decay D/sup 0/..-->..K-bar/sup 0/..pi../sup -/e/sup +/..nu..: tau/sub 1/(D/sup 0/) = (3.4 +- 0.3)x10/sup -13/ s and tau/sub 2/(D/sup 0/) = (7.5 +- 0.3)x10/sup -13/ s.

• OSTI ID: 5521558
• Journal Information: JETP Lett. (Engl. Transl.); (United States), Journal Name: JETP Lett. (Engl. Transl.); (United States) Vol. 34:8; ISSN JTPLA
• Country of Publication: United States
• Language: English

Related Subjects

645101* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Electromagnetic Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BASIC INTERACTIONS
BOSONS
CHARM PARTICLES
CHARMED MESON RESONANCES
D RESONANCES
DECAY
ELECTROMAGNETIC INTERACTIONS
ELEMENTARY PARTICLES
HADRONS
INTERACTIONS
MAGNETIC SPECTROMETERS
MEASURING INSTRUMENTS
MESON RESONANCES
MESONS
NUCLEAR EMULSIONS
PAIR PRODUCTION
PARTICLE PRODUCTION
PHOTOPRODUCTION
POSTULATED PARTICLES
RESONANCE PARTICLES
SPECTROMETERS