Lifetimes of charmed particles produced in a 20-GeV. gamma. p experiment

Journal Article · Mon May 31 04:00:00 EDT 1982 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.48.1526· OSTI ID:5022298

Abe, K; Bacon, T C; Ballam, J

Eleven neutral and nine charged decays of charmed particles have been observed in a sample of 205 000 hadronic interactions in a 1.2-million-picture exposure of the SLAC Hybrid Facility bubble chamber to a 20-GeV/c backward-scattered laser beam. The charged and neutral lifetimes were determined to be 8.2/sup +4.5//sub -2.5/ x 10/sup -13/ and 6.7/sup +3.5//sub -2.0/ x 10/sup -13/ sec, respectively, with a ratio of 1.2/sup +0.9//sub -0.5/.

• Research Organization: Birmingham University, Birmingham B15 2TT, England
• OSTI ID: 5022298
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 48:22; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

645101* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Electromagnetic Interactions & Properties
645102 -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Weak Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BASIC INTERACTIONS
BUBBLE CHAMBERS
CHARM PARTICLES
DATA
DECAY
ELECTROMAGNETIC INTERACTIONS
ELEMENTARY PARTICLES
ENERGY RANGE
EXPERIMENTAL DATA
GAS TRACK DETECTORS
GEV RANGE
GEV RANGE 10-100
HADRONIC PARTICLE DECAY
INFORMATION
INTERACTIONS
LIFETIME
MEASURING INSTRUMENTS
MONTE CARLO METHOD
NUMERICAL DATA
PARTICLE DECAY
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
PHOTON-BARYON INTERACTIONS
PHOTON-HADRON INTERACTIONS
PHOTON-NUCLEON INTERACTIONS
PHOTON-PROTON INTERACTIONS
PHOTOPRODUCTION
POSTULATED PARTICLES
RADIATION DETECTORS