Measurement of the B{sup +} and B{sup 0} lifetimes

Conference · Sun Aug 01 00:00:00 EDT 1993

OSTI ID:10183621

CDF Collaboration

The lifetimes of the B{sup +} and B{sup 0} have been measured using a sample of fully reconstructed B decays. Using {approximately} 19,000 J/{psi} {yields} {mu}{sup +}{mu}{sup {minus}} decays recorded with the Collider Detector at Fermilab, 75 {plus_minus} 10 charged and 61 {plus_minus} 9 neutral B mesons have been reconstructed in the CDF silicon vertex detector. Unbinned likelihood fits to the proper lifetime distributions of these B mesons give {tau}{sup {plus_minus}} = 1.63 {plus_minus} 0.21 (stat) {plus_minus} 0.16 (sys) ps, {tau}{sup 0} = 1.54 {plus_minus} 0.2 (stat) {plus_minus} 0.10 (sys) ps, {tau}{sup {plus_minus}}{tau}{sup 0} = 1.06 {plus_minus} 0.20 (stat) {plus_minus} 0.12 (sys).

• Research Organization: Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States); National Science Foundation, Washington, DC (United States); Natural Sciences and Engineering Research Council of Canada, Ottawa, ON (Canada); Sloan (Alfred P.) Foundation, New York, NY (United States)
• DOE Contract Number: AC02-76CH03000
• OSTI ID: 10183621
• Report Number(s): FNAL/C-93/198-E; CONF-930823-2; ON: DE93019906; IN: CDF/PUB/BOTTOM/PUBLIC/2153; TRN: 93:021690
• Resource Relation: Conference: 15. international symposium on lepton and photon interactions,Ithaca, NY (United States),10-15 Aug 1993; Other Information: PBD: Aug 1993
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
B MESONS
HADRONIC PARTICLE DECAY
LIFETIME
FERMILAB COLLIDER DETECTOR
MUON PAIRS
J PSI-3097 MESONS
MASS SPECTRA
662350
DECAYS OF MESONS