Measurement of the average lifetime of hadrons containing bottom quarks

Thesis/Dissertation · Wed Jan 01 04:00:00 EST 1986

OSTI ID:6954402

Klem, D E

This thesis reports a measurement of the average lifetime of hadrons containing bottom quark. It is based on data taken with the DELCO detector at the PEP e/sup +/e/sup -/ storage ring at a center of mass energy of 29 GeV. The decays of hadrons containing bottom quarks are tagged in hadronic events by the presence of electrons with a large component of momentum transverse to the event axis. Such electrons are identified in the DELCO detector by an atmospheric pressure Cerenkov counter assisted by a lead/scintillator electromagnetic shower counter. This measurement, in conjunction with a limit on the non-charm branching ratio in b-decay obtained by other experiments, can be used to constrain the magnitude of the Vcb element of the Kobayashi-Maskawa matrix.

• Research Organization: Stanford Univ., CA (USA)
• OSTI ID: 6954402
• Country of Publication: United States
• Language: English

Related Subjects

645103* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Strong Interactions & Baryon & Meson Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
B MESONS
BOSONS
BRANCHING RATIO
CHARM PARTICLES
DATA
DECAY
ELECTRON-POSITRON INTERACTIONS
ELEMENTARY PARTICLES
ENERGY RANGE
EXPERIMENTAL DATA
FIELD THEORIES
GEV RANGE
GEV RANGE 10-100
HADRONS
INFORMATION
INTERACTIONS
KOBAYASHI-MASKAWA MATRIX
LEPTON-LEPTON INTERACTIONS
LIFETIME
MATRICES
MESONS
MULTIPLE PRODUCTION
NUMERICAL DATA
PARTICLE DECAY
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
PEP STORAGE RINGS
PSEUDOSCALAR MESONS
STORAGE RINGS
UNIFIED-FIELD THEORIES
WEAK PARTICLE DECAY