Measurement of the average lifetime of [ital B] hadrons produced in [ital p[bar p]] collisions at [radical][ital s] =1. 8 TeV

Journal Article · Mon Nov 22 04:00:00 EST 1993 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.71.3421· OSTI ID:5431954

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; Bauer, G; Baumann, T; Bedeschi, F ; Behrends, S; Belforte, S; Bellettini, G; Bellinger, J; Benjamin, D; Benlloch, J; Beretvas, A; Berge, J P; Bhatti, A; Biery, K; Binkley, M; Bird, F; Bisello, D; Blair, R E; Blocker, C; Bodek, A; Bolognesi, V; 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; Dell'Orso, M; Demortier, L; Denby, B; Deninno, M; Derwen,

The average [ital b]-hadron lifetime has been measured using a high statistics sample of [ital B][r arrow][ital J]/[psi] [ital X] decays recorded with the Collider Detector at Fermilab. The decay vertices of 5344 inclusive [ital J]/[psi][r arrow][mu][sup +][mu][sup [minus]] candidates have been reconstructed using information from a silicon vertex detector. The measured [ital B] lifetime, which is the average over all [ital b] hadrons produced in [ital p[bar p]] collisions at [radical][ital s] =1.8 TeV weighted by their branching ratios into [ital J]/[psi], is 1.46[plus minus]0.06(stat)[plus minus]0.06(syst) ps.

• OSTI ID: 5431954
• Journal Information: Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 71:21; 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
BARYON-BARYON INTERACTIONS
BEAUTY PARTICLES
BOSONS
BRANCHING RATIO
DECAY
ELEMENTARY PARTICLES
FERMILAB COLLIDER DETECTOR
HADRON-HADRON INTERACTIONS
HADRONS
INTERACTIONS
LIFETIME
MESONS
NUCLEON-ANTINUCLEON INTERACTIONS
PARTICLE DECAY
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
PROTON-ANTIPROTON INTERACTIONS
PSEUDOSCALAR MESONS
WEAK HADRONIC DECAY
WEAK PARTICLE DECAY