Search for [Lambda][sub [ital b]][r arrow][ital J]/[psi] [Lambda][sup 0] in [ital p[bar p]] collisions at [radical][ital s] =1. 8 TeV

Journal Article · Thu Apr 01 00:00:00 EST 1993 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.47.R2639· OSTI ID:6655036

Abe, F; Amidei, D; Anway-Wiese, C; Apollinari, G; Atac, M; Auchincloss, P; Azzi, P; Baden, A R; Bacchetta, N; Badgett, W; Bailey, M W; Bamberger, A; 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; Bensinger, J; Beretvas, A; Berge, J P; Bertolucci, S; Biery, K; Bhadra, S; Binkley, M; Bisello, D; Blair, R; Blocker, C; Bodek, A; Bolognesi, V; Booth, A W; Boswell, C; Brandenburg, G; Brown, D; Buckley-Geer, E; Budd, H S; Busetto, G; Byon-Wagner, A; Byrum, K L; Campagnari, C; Campbell, M; Caner, A; Carey, R; Carithers, W; Carlsmith, D; Carroll, J T; Cashmore, R; Castro, A; Cervelli, F; Chadwick, K; Chapman, J; Chiarelli, G; Chinowsky, W; Cihangir, S; Clark, A G; Cobal, M; Connor, D; Contreras, M; Cooper, J; Cordelli, M; Crane, D; Cunningham, J D; Day, C; DeJongh, F; Dell'Agnello, S; Dell'Orso,

We have searched for the [ital b]-flavored baryon decay [Lambda][sub [ital b]][r arrow][ital J]/[psi] [Lambda][sup 0] in [ital p[bar p]] collisions at [radical][ital s] =1.8 TeV with the Collider Detector at Fermilab (CDF). In the [ital J]/[psi] [Lambda][sup 0] invariant-mass distribution we observe a flat distribution and a small number of events, consistent with no signal. Using the [ital b]-quark cross section measured by the CDF we put an upper limit on the [ital b][r arrow][Lambda][sub [ital b]] production fraction times the branching ratio [ital F]([Lambda][sub [ital b]])[ital B]([Lambda][sub [ital b]][r arrow][ital J]/[psi] [Lambda][sup 0]) of 0.50[times]10[sup [minus]3] at 90% confidence level.

• OSTI ID: 6655036
• Journal Information: Physical Review, D (Particles Fields); (United States), Vol. 47:7; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BEAUTY PARTICLES
PARTICLE PRODUCTION
PROTON-ANTIPROTON INTERACTIONS
BARYONS
CROSS SECTIONS
EXPERIMENTAL DATA
LIMITING VALUES
MASS SPECTRA
TEV RANGE 01-10
BARYON-BARYON INTERACTIONS
DATA
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
HADRON-HADRON INTERACTIONS
HADRONS
INFORMATION
INTERACTIONS
NUCLEON-ANTINUCLEON INTERACTIONS
NUMERICAL DATA
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662340* - Hadron Interactions- (1992-)
662410 - Properties of Baryons & Baryon Resonances- (1992-)