B meson reconstruction and lifetime studies with the Mark II at PEP

Conference · Sun May 01 00:00:00 EDT 1988

OSTI ID:6989627

Wagner, S R

We have measured the lifetime of an ensemble of particles containing b quarks, tagged with a high p/sub T/ lepton from their semileptonic decay. Using a method which estimates the production point of each particle in the beam ellipse, we measured a lifetime of 0.98 +- 0.12 +- 0.13 psec. We have also studied methods of partially reconstructing B mesons decaying into D/sup/star//minus// mesons plus charged leptons or mesons. We have searched the Mark II PEP data samples and find five candidates for B/sup 0/ decay. Four of these B/sup 0/ candidates form good vertices, and their measured proper lifetimes are presented. 18 refs.

• Research Organization: Colorado Univ., Boulder (USA). Dept. of Physics; Stanford Linear Accelerator Center, Menlo Park, CA (USA)
• DOE Contract Number: AC02-86ER40253; AC03-76SF00515; AC03-76SF00098; AC02-84ER40125; AC03-81ER40050; AC03-83ER40103
• OSTI ID: 6989627
• Report Number(s): SLAC-PUB-4635; CONF-8803109-3; COLO-HEP-177; ON: DE88012737; TRN: 88-026894
• Resource Relation: Conference: 23. Rencontre de Moriond conference: electroweak interactions and unified theories, Les Arcs, France, 6 Mar 1988; Other Information: Portions of this document are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
B MESONS
PARTICLE DECAY
LIFETIME
MASS DISTRIBUTION
QUARKS
TRANSVERSE MOMENTUM
BOSONS
DECAY
DISTRIBUTION
ELEMENTARY PARTICLES
HADRONS
LINEAR MOMENTUM
MESONS
POSTULATED PARTICLES
PSEUDOSCALAR MESONS
SPATIAL DISTRIBUTION
645100* - High Energy Physics- Particle Interactions & Properties-Experimental