Observation of the decay [ital B][sub [ital s]][sup 0][r arrow][ital J]/[psi] [phi] in [ital [bar p]p] collisions at [radical][ital s] =1. 8 TeV

This Letter reports the observation and mass measurement of fully reconstructed [ital B][sub [ital s]][sup 0] mesons through the decay chain [ital B][sub [ital s]][sup 0][r arrow][ital J]/[psi] [psi], [ital J]/[psi][r arrow][mu][sup +][mu][sup [minus]], [phi][r arrow][ital K][sup +][ital K[minus]] u...

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Veröffentlicht in:	Physical review letters 1993-09, Vol.71:11
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., Bauer, G., Baumann, T., Bedeschi, F., Behrends, S., Belforte, S., Bellettini, G., Bellinger, J., Benjamin, D., Benlloch, J., Beretvas, A., 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., Derwent, P.F., Devl
Format:	Artikel
Sprache:	eng
Schlagworte:	662350 - Decays of Mesons- (1992-) 662420 - Properties of Mesons & Meson Resonances- (1992-) B MESONS B NEUTRAL MESONS BARYON-BARYON INTERACTIONS BEAUTY PARTICLES BOSONS CHARMONIUM COMPOSITE MODELS DECAY ELEMENTARY PARTICLES FERMILAB COLLIDER DETECTOR FERMIONS HADRON-HADRON INTERACTIONS HADRONS INTERACTIONS J PSI-3097 MESONS KAONS LEPTONS MASS MATHEMATICAL MODELS MESONS MUONS NUCLEON-ANTINUCLEON INTERACTIONS PAIR PRODUCTION PARTICLE DECAY PARTICLE INTERACTIONS PARTICLE MODELS PARTICLE PRODUCTION PHI-1020 MESONS PHYSICS OF ELEMENTARY PARTICLES AND FIELDS PROTON-ANTIPROTON INTERACTIONS PSEUDOSCALAR MESONS QUARK MODEL QUARKONIUM STRANGE MESONS STRANGE PARTICLES STRANGEONIUM VECTOR MESONS WEAK HADRONIC DECAY WEAK PARTICLE DECAY
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Beschreibung
Zusammenfassung:	This Letter reports the observation and mass measurement of fully reconstructed [ital B][sub [ital s]][sup 0] mesons through the decay chain [ital B][sub [ital s]][sup 0][r arrow][ital J]/[psi] [psi], [ital J]/[psi][r arrow][mu][sup +][mu][sup [minus]], [phi][r arrow][ital K][sup +][ital K[minus]] using data obtained at the Collider Detector at Fermilab in [ital [bar p]p] collisions at [radical][ital s] =1.8 TeV. A signal of 14.0[plus minus]4.7 events is observed. Comparison of the [ital B][sub [ital s]][sup 0] signal with the kinematically similar decays [ital B][sup +][r arrow][ital J]/[psi] [ital K][sup +] and [ital B][sup 0][r arrow][ital J]/[psi] K[sup *](892)[sup 0] is presented. The mass of the [ital B][sub [ital s]][sup 0] meson is determined to be 5383.3[plus minus]4.5(stat)[plus minus]5.0(syst) MeV/[ital c][sup 2].
ISSN:	0031-9007 1079-7114
DOI:	10.1103/PhysRevLett.71.1685