Measurement of the B hadron lifetime

Conference · Mon Sep 01 00:00:00 EDT 1986

OSTI ID:5227186

Ash, W W; Band, H R; Bloom, E D; Bosman, M; Camporesi, T; Chadwick, G B; Delfino, M C; De Sangro, R; Ford, W T; Gettner, M W

Data from e/sup +/e/sup -/ collisions collected by the MAC detector at the SLAC storage ring PEP with a new vertex chamber having position resolution of 50 ..mu..m have been analyzed with a new method to make a determination of the lifetime of hadrons containing b-quarks. In addition, data collected with MAC before the vertex chamber was installed have been re-analyzed using the new method. The combined result for the B lifetime is tau/sub b/ = (1.16 +- 0.16(stat.) +- 0.07(syst.)ps) x (1 +- 0.15), where the last factor is the scale. 12 refs., 2 figs.

• Research Organization: Colorado Univ., Boulder (USA). Dept. of Physics; Istituto Nazionale di Fisica Nucleare, Frascati (Italy). Lab. Nazionale di Frascati; Houston Univ., TX (USA). Dept. of Physics; Northeastern Univ., Boston, MA (USA). Dept. of Physics; Stanford Linear Accelerator Center, Menlo Park, CA (USA); Stanford Univ., CA (USA). Dept. of Physics
• DOE Contract Number: AC03-76SF00515; AC02-81ER40025; AC02-76ER00881
• OSTI ID: 5227186
• Report Number(s): SLAC-PUB-4063; CONF-860701-15; ON: DE87000206
• Resource Relation: Conference: 23. international conference on high-energy physics, Berkeley, CA, USA, 16 Jul 1986
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
B MESONS
LIFETIME
DRIFT CHAMBERS
ELECTRON-POSITRON INTERACTIONS
EXPERIMENTAL DATA
SHOWER COUNTERS
BOSONS
DATA
ELEMENTARY PARTICLES
HADRONS
INFORMATION
INTERACTIONS
LEPTON-LEPTON INTERACTIONS
MEASURING INSTRUMENTS
MESONS
MULTIWIRE PROPORTIONAL CHAMBERS
NUMERICAL DATA
PARTICLE INTERACTIONS
PROPORTIONAL COUNTERS
PSEUDOSCALAR MESONS
RADIATION DETECTORS
645100* - High Energy Physics- Particle Interactions & Properties-Experimental