Lifetime measurements for bottom hadrons

Conference · Sat Sep 01 04:00:00 EDT 1984

OSTI ID:6174581

Wolf, G

The review of lifetime measurements of bottom hadrons begins with a first measurement by JADE, followed by similar measurements by MAC and MKII groups. New MAC data are reviewed based on a total of 75,000 multihadron events taken at a c.m. energy of 29 GeV. According to Monte Carlo calculations, 18% of the lepton candidates stem from charm decay and roughly 30% were misidentified hadrons. DELCO studied electrons obtained from 42,000 multihadron events at 29 GeV. The electrons were identified by means of Cerenkov counters. JADE analayzed 22,000 multihadron events at 35 GeV. Data were analyzed using two methods - one using a sample of b-enriched events, and the other using weighted distributions. The TASSO results were obtained with two different configurations of the detector - one of which used a drift chamber and the other a vertex detector. (LEW)

• Research Organization: Stanford Linear Accelerator Center, CA (USA); Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany, F.R.)
• DOE Contract Number: AC03-76SF00515
• OSTI ID: 6174581
• Report Number(s): SLAC-PUB-3446; CONF-840757-15; ON: DE85001941
• 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
BEAUTY PARTICLES
BOSONS
CHARM PARTICLES
DECAY
ELEMENTARY PARTICLES
HADRONS
LIFETIME
MESONS
MONTE CARLO METHOD
PARTICLE DECAY
POSTULATED PARTICLES
STRANGE PARTICLES
WEAK PARTICLE DECAY