Limits on the hadronic production of D (1865) charmed mesons

Journal Article · Sun Jul 01 04:00:00 EDT 1979 · Phys. Rev., D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.20.337· OSTI ID:6246890

Branson, J G; McDonald, K T; Sanders, G H; Smith, A J.S.; Thaler, J J; Anderson, K J; Henry, G G; Pilcher, J E; Rosenberg, E I

Our published measurements have shown that lepton pairs account for the bulk of the single prompt muons produced in p-nucleus collisions. We now use our results to set limits on the cross section sigma/sub D/D-bar = sigma/sub D/0/sub D/0 + sigma/sub D/+/sub D/-, finding with 95% confidence that sigma/sub D/D-bar < 26 ..mu..b at ..sqrt..s = 19.4 GeV, and sigma/sub D/D-bar < 59 ..mu..b at ..sqrt..s = 27.4 GeV. These limits are at the level of the recently reported cross sections for charmed particles observed in neutrino ''beam-dump'' experiments, and are 10 times higher than sigma/sub D/D-bar expected from a simple extrapolation of the cross section for J/psi production.

• Research Organization: Joseph Henry Laboratories, Princeton University, Princeton, New Jersey 08540
• OSTI ID: 6246890
• Journal Information: Phys. Rev., D; (United States), Journal Name: Phys. Rev., D; (United States) Vol. 20:1; ISSN PRVDA
• Country of Publication: United States
• Language: English

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72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYON REACTIONS
BARYON-BARYON INTERACTIONS
BERYLLIUM 9 TARGET
BOSONS
CHARGED-PARTICLE REACTIONS
CHARM PARTICLES
CHARMED MESON RESONANCES
COPPER
CROSS SECTIONS
D RESONANCES
D-1865 RESONANCES
ELEMENTARY PARTICLES
ELEMENTS
ENERGY RANGE
FERMIONS
GEV RANGE
GEV RANGE 100-1000
HADRON REACTIONS
HADRON-HADRON INTERACTIONS
HADRONS
INCLUSIVE INTERACTIONS
INTERACTIONS
IRON
LEPTONS
LIFETIME
MESON RESONANCES
MESONS
METALS
MONTE CARLO METHOD
MUONS
NUCLEAR REACTIONS
NUCLEON REACTIONS
NUCLEON-NUCLEON INTERACTIONS
PAIR PRODUCTION
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
POSTULATED PARTICLES
PROTON REACTIONS
PROTON-NUCLEON INTERACTIONS
RESONANCE PARTICLES
TARGETS
TRANSITION ELEMENTS