Measurement of the average B-hadron lifetime

Journal Article · Mon Nov 12 04:00:00 EST 1984 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.53.1873· OSTI ID:6235406

Klem, D E; Dubois, R; Young, C C; Atwood, W B; Baillon, P H; Barish, B C; Bonneaud, G R; Courau, A; Donaldson, G J; Duro, M M

Results are reported from a study of the impact parameters of electrons in hadronic events produced at the PEP e/sup +/e/sup -/ storage ring. Electrons in hadronic events are produced by bottom and charm decay and their impact parameters show hadrons containing bottom quarks to have a lifetime of 1.16/sub -0.34//sup +0.37/ (stat.) +- 0.23 syst.) psec. This result is used to constrain elements of the Kobayashi-Maskawa mixing matrix.

• Research Organization: California Institute of Technology, Pasadena, California 91125 and Stanford Linear Accelerator Center and Physics Department Stanford University, Stanford, California 94305
• OSTI ID: 6235406
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 53:20; 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
B MESONS
BOSONS
CHERENKOV COUNTERS
DECAY
ELEMENTARY PARTICLES
HADRONS
IMPACT PARAMETER
LIFETIME
MATRIX ELEMENTS
MEASURING INSTRUMENTS
MESONS
MONTE CARLO METHOD
PARTICLE DECAY
PEP STORAGE RINGS
POSTULATED PARTICLES
QUARKS
RADIATION DETECTORS
SEMILEPTONIC DECAY
STORAGE RINGS
WEAK PARTICLE DECAY