Limit on bottom-meson pair production in. pi. /sup -/-nucleus interactions at 225 GeV/c

Journal Article · Mon May 19 04:00:00 EDT 1980 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.44.1313· OSTI ID:5239006

Coleman, R N; Anderson, K J; Karhi, K P; Newman, C B; Pilcher, J E; Rosenberg, E I; Thaler, J J; Hogan, G E; McDonald, K T; Sanders, G H; Smith, A J.S.

In an experiment to measure multimuon final states in interactions of 225-GeV/c ..pi../sup -/ with nuclear targets we have observed 65 900 J/psi ..-->.. ..mu../sup +/..mu../sup -/ decays, of which 487 are accompanied by a third muon. We have used this sample to search for production of botton-meson pairs, followed by the decays B ..-->.. J/psiX, B-bar ..-->.. ..mu..+X. We find, supposing linear A dependence, that sigma(BB-bar)<8 nb/nucleon with 90% confidence. This limit is in contradiction with a recent report that sigma(BB-bar) approx. = 200 nb/nucleon.

• Research Organization: Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637
• OSTI ID: 5239006
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 44:20; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

645103* -- High Energy Physics-- Particle Interactions &amp; Properties-Experimental-- Strong Interactions &amp; Baryon &amp; Meson Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BEAUTY MODEL
BEAUTY PARTICLES
BOSONS
CHARGED-PARTICLE REACTIONS
COMPOSITE MODELS
CROSS SECTIONS
DECAY
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
FLAVOR MODEL
GEV RANGE
GEV RANGE 100-1000
HADRON REACTIONS
HADRON-HADRON INTERACTIONS
HADRONS
INTERACTIONS
LEPTONS
LIFETIME
LIMITING VALUES
LINEAR MOMENTUM
MATHEMATICAL MODELS
MESON REACTIONS
MESON RESONANCES
MESON-BARYON INTERACTIONS
MESON-NUCLEON INTERACTIONS
MESONS
MONTE CARLO METHOD
MUONS
NUCLEAR REACTIONS
PAIR PRODUCTION
PARTICLE DECAY
PARTICLE INTERACTIONS
PARTICLE MODELS
PION MINUS REACTIONS
PION REACTIONS
PION-NUCLEON INTERACTIONS
POSTULATED PARTICLES
PSI RESONANCES
QUARK MODEL
RESONANCE PARTICLES
TRANSVERSE MOMENTUM
VECTOR MESONS