Measurement of the [ital B][sup +] and [ital B][sup 0] meson lifetimes

Journal Article · Mon May 30 00:00:00 EDT 1994 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.72.3456· OSTI ID:7308367

Abe, F; Albrow, M; Amidei, D; Anway-Wiese, C; Apollinari, G; Areti, H; Auchincloss, P; Azfar, F; Azzi, P; Bacchetta, N; Badgett, W; Bailey, M W; Bao, J; de Barbaro, P; Barbaro-Galtieri, A; Barnes, V E; Barnett, B A; Bartalini, P; Bauer, G; Baumann, T ; Bedeschi, F; Behrends, S; Belforte, S; Bellettini, G; Bellinger, J; Benjamin, D; Benlloch, J; Benton, D; Beretvas, A; Berge, J P; Bertolucci, S; Bhatti, A; Biery, K; Binkley, M; Bird, F; Bisello, D; Blair, R E; Blocker, C; Bodek, A; Bolognesi, V; Bortoletto, D; Boswell, C; Boulos, T; Brandenburg, G; Buckley-Geer, E; Budd, H S; Burkett, K; Busetto, G; Byon-Wagner, A; Byrum, K L; Campagnari, C; Campbell, M; Caner, A; Carithers, W; Carlsmith, D; Castro, A; Cen, Y; Cervelli, F; Chapman, J; Chiarelli, G; Chikamatsu, T; Cihangir, S; Clark, A G; Cobal, M; Contreras, M; Cooper, J; Cordelli, M; Coupal, D P; Crane, D; Cunningham, J D; Daniels, T; DeJongh, F; Dell'Agnello, S; D,

The lifetimes of the [ital B][sup +] and [ital B][sup 0] mesons have been measured using fully reconstructed decays. In a sample of [similar to]49 600[ital J]/[psi][r arrow][mu][sup +][mu][sup [minus]] decays recorded with the Collider Detector at Fermilab, 148[plus minus]16 [ital B][sup +] and 121[plus minus]16[ital B][sup 0] mesons have been reconstructed using the silicon vertex detector. Unbinned likelihood fits to the proper lifetime distributions of these [ital B] mesons give [tau][sup +]=1.61[plus minus]0.16 (stat)[plus minus]0.05 (syst) ps, [tau][sup 0]=1.57[plus minus]0.18 (stat) [plus minus]0.08 (syst) ps, and [tau][sup +]/[tau][sup 0]=1.02[plus minus]0.16 (stat) [plus minus]0.05 (syst).

• OSTI ID: 7308367
• Journal Information: Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 72:22; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

662350* -- Decays of Mesons-- (1992-)
662420 -- Properties of Mesons & Meson Resonances-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
B MESONS
B NEUTRAL MESONS
B PLUS MESONS
BEAUTY PARTICLES
BOSONS
BRANCHING RATIO
DECAY
ELEMENTARY PARTICLES
FERMILAB COLLIDER DETECTOR
HADRONS
LIFETIME
MESONS
PARTICLE DECAY
PSEUDOSCALAR MESONS
SEMILEPTONIC DECAY
WEAK PARTICLE DECAY