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

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[...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Veröffentlicht in:	Physical review letters 1994-05, Vol.72:22
Hauptverfasser:	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
Format:	Artikel
Sprache:	eng
Schlagworte:	662420 > Properties of Mesons & Meson Resonances-- (1992-) B MESONS B NEUTRAL MESONS B PLUS MESONS BEAUTY PARTICLES BOSONS BRANCHING RATIO DECAY ELEMENTARY PARTICLES FERMILAB COLLIDER DETECTOR HADRONS LIFETIME MESONS PARTICLE DECAY PHYSICS OF ELEMENTARY PARTICLES AND FIELDS PSEUDOSCALAR MESONS SEMILEPTONIC DECAY WEAK PARTICLE DECAY 662350 > Decays of Mesons-- (1992-)
Online-Zugang:	Volltext
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	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).
ISSN:	0031-9007 1079-7114
DOI:	10.1103/PhysRevLett.72.3456