Hadronic decays of the D/sub s/ meson

Technical Report · Thu Jun 01 00:00:00 EDT 1989

DOI:https://doi.org/10.2172/5938976· OSTI ID:5938976

Wasserbaech, S R

The D/sub s//sup +/ is the lowest-lying pseudoscalar meson containing charm and anti-strange quarks. Evidence for this state was first reported in 1977, although more recent observations disagree with some of the early results. Since 1983 the weakly decaying D/sub s//sup +/ has been observed in many experiments. Relative branching fractions have been measured for many non-leptonic decay modes, including D/sub s//sup +/ /yields/ /phi//pi//sup +/, /phi//pi//sup +//pi//sup +//pi//sup /minus//, /bar K/*/sup 0/K/sup +/, and f/sub 0/(975)/pi//sup +/. The absolute branching fractions are estimated in high energy e/sup +/e/sup /minus// annihilation from the observed numbers of reconstructed D/sub s//sup +/ decays and the expected D/sub s//sup +/ production cross section. The lowest-lying vector c/bar s/ meson, the D/sub s/*/sup +/, has also been seen in its decay to /gamma/D/sub s//sup +/. Weak decays of the heavy quark and lepton flavors are relevant to the development of the Standard Model of both the electroweak and the strong interactions. Measurements of charmed particle weak decay are useful for determining the parameter of the Standard Model and for testing phenomenological models which include strong effects. 83 refs., 56 figs., 12 tabs.

• Research Organization: SLAC National Accelerator Lab., Menlo Park, CA (United States)
• DOE Contract Number: AC03-76SF00515
• OSTI ID: 5938976
• Report Number(s): SLAC-345; ON: DE89014397; TRN: 89-019174
• Resource Relation: Other Information: Thesis (Ph.D.). Portions of this document are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
D MESONS
HADRONIC PARTICLE DECAY
BRANCHING RATIO
CHARM PARTICLES
COMPUTERIZED SIMULATION
ELECTRON-POSITRON INTERACTIONS
MUON DETECTION
PARTICLE PRODUCTION
SHOWER COUNTERS
STANDARD MODEL
STRANGENESS
WEINBERG-SALAM GAUGE MODEL
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CHARGED PARTICLE DETECTION
CHARMED MESONS
DECAY
DETECTION
ELEMENTARY PARTICLES
FIELD THEORIES
HADRONS
INTERACTIONS
LEPTON-LEPTON INTERACTIONS
MATHEMATICAL MODELS
MEASURING INSTRUMENTS
MESONS
PARTICLE DECAY
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTICLE PROPERTIES
PSEUDOSCALAR MESONS
RADIATION DETECTION
RADIATION DETECTORS
SIMULATION
UNIFIED GAUGE MODELS
UNIFIED-FIELD THEORIES
645103* - High Energy Physics- Particle Interactions & Properties-Experimental- Strong Interactions & Baryon & Meson Properties
440104 - Radiation Instrumentation- High Energy Physics Instrumentation