Search for baryonium states in the reaction pp. -->. ppp-barp at 11. 75 GeV/c

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

DOI:https://doi.org/10.1103/PhysRevLett.45.316· OSTI ID:5125300

Kooijman, S; Arenton, M W; Ayres, D S; Diebold, R; May, E N; Nodulman, L; Sauer, J R; Wicklund, A B; Swallow, E C

A search was made for five-quark ''pseudobaryon'' and four-quark baryonium states with a 1000-event sample of the reaction pp..-->..ppp-barp at 11.75 GeV/c. For states with widths < or approx. =10 MeV/c/sup 2/ and masses M/sub p/p<2.2 Gev/c/sup 2/ and M/sub p/pp-bar<3.4 GeV/c/sup 2/, upper limits on the product of the cross section and the branching ratio for forward-hemisphere production are measured to be approx.15 nb.

• Research Organization: Argonne National Laboratory, Argonne, Illinois 60439
• OSTI ID: 5125300
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 45:5; 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
ACCELERATORS
BARYON-BARYON INTERACTIONS
BARYONIUM
BOSONS
BRANCHING RATIO
COMPOSITE MODELS
CROSS SECTIONS
CYCLIC ACCELERATORS
EFFECTIVE MASS
ELEMENTARY PARTICLES
ENERGY RANGE
GEV RANGE
GEV RANGE 10-100
HADRON-HADRON INTERACTIONS
HADRONS
INTERACTIONS
MASS
MASS SPECTROMETERS
MATHEMATICAL MODELS
MEASURING INSTRUMENTS
MESON RESONANCES
MESONS
MULTIWIRE PROPORTIONAL CHAMBERS
NUCLEON-NUCLEON INTERACTIONS
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTICLE PRODUCTION
PROPORTIONAL COUNTERS
PROTON-NUCLEON INTERACTIONS
PROTON-PROTON INTERACTIONS
QUANTUM NUMBERS
QUARK MODEL
RADIATION DETECTORS
RESONANCE PARTICLES
SPECTROMETERS
SYNCHROTRONS
TOTAL CROSS SECTIONS
ZGS