Lifetimes of the charmed particles D/sup + -/, F/sup + -/, and. lambda. /sub c//sup +/ produced by neutrinos

Journal Article · Mon Apr 28 04:00:00 EDT 1986 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.56.1767· OSTI ID:5797089

Ushida, N; Kondo, T; Tasaka, S; Park, I G; Song, J S; Hara, T; Homma, Y; Tsuzuki, Y; Fujioka, G; Fukushima, H

We report final results for the D/sup + -/, F/sup + -/, and ..lambda../sub c//sup +/ lifetimes measured with a hybrid emulsion spectrometer in the wide-band neutrino beam at Fermilab. In total, 3886 neutrino and antineutrino interactions were located in the fiducial volume of the emulsion. From these interactions we have unambiguously identified 6 F/sup + -/ and 13 ..lambda../sub c//sup +/ decays, for which the fitted lifetimes are tau(F/sup + -/) = (2.6/sub -0.9//sup +1.6/) x 10/sup -13/ s and tau(..lambda../sub c//sup +/) = (2.0/sub -0.5//sup +0./ 7) x 10/sup -13/ s. 28 other decays are consistent with a D/sup +/ or D/sup -/ hypothesis. From these events, we obtain a D/sup + -/ lifetime of (11.1/sub -2.9//sup +4.4/) x 10/sup -13/ s.

• Research Organization: Department of Physics, Aichi University of Education, Igaya-cho, Kariya-shi, Aichi 448, Japan
• OSTI ID: 5797089
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 56:17; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

645102* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Weak Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANTINEUTRINO-NUCLEON INTERACTIONS
BARYONS
BOSONS
CHARM PARTICLES
CHARMED MESONS
D MESONS
DATA
DECAY
ELEMENTARY PARTICLES
EXPERIMENTAL DATA
F MESONS
FERMIONS
HADRONS
INFORMATION
INTERACTIONS
LAMBDA C PLUS
LEPTON-BARYON INTERACTIONS
LEPTON-HADRON INTERACTIONS
LEPTON-NUCLEON INTERACTIONS
LIFETIME
LINEAR MOMENTUM
MESONS
NEUTRINO-NUCLEON INTERACTIONS
NUCLEAR EMULSIONS
NUMERICAL DATA
PARTICLE INTERACTIONS
PROBABILITY
PSEUDOSCALAR MESONS
STRANGE PARTICLES
TIME-OF-FLIGHT METHOD
TRANSVERSE MOMENTUM