Search for semileptonic decays of photoproduced charmed mesons. [100 to 300 GeV, no statistically significant evidence]

Technical Report · Sat Jan 01 04:00:00 EST 1977

DOI:https://doi.org/10.2172/6500617· OSTI ID:6500617

Coleman, R. N.

In the broad band neutral beam at Fermilab, a search for photoproduction of charmed D mesons was done using photons of 100 to 300 GeV. The reaction considered was ..gamma.. + Be ..-->.. DantiD + X, leptons + ..., K/sup 0//sub s/n..pi../sup +-/. No statistically significant evidence for D production is observed based on the K/sup 0//sub s/n..pi../sup +-/ mass spectrum. The sensitivity of the search is commensurate with theoretical estimates of sigma(..gamma..p ..-->.. DantiD + X) approximately 500 nb, however this is dependent on branching ratios and photoproduction models. Data are given on a similar search for semileptonic decays of charmed baryons. 48 references.

• Research Organization: Illinois Univ., Urbana (USA)
• DOE Contract Number: EY-76-C-02-1195
• OSTI ID: 6500617
• Report Number(s): COO-1195-410
• Country of Publication: United States
• Language: English

Related Subjects

645101* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Electromagnetic Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BASIC INTERACTIONS
BERYLLIUM 9 TARGET
BOSONS
BRANCHING RATIO
CHARM PARTICLES
CHARMED MESON RESONANCES
D RESONANCES
DECAY
ELECTROMAGNETIC INTERACTIONS
ELEMENTARY PARTICLES
ENERGY RANGE
GEV RANGE
GEV RANGE 100-1000
HADRONIC PARTICLE DECAY
HADRONS
INCLUSIVE INTERACTIONS
INTERACTIONS
MESON RESONANCES
MESONS
NUCLEAR REACTIONS
PAIR PRODUCTION
PARTICLE DECAY
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
PHOTONUCLEAR REACTIONS
PHOTOPRODUCTION
POSTULATED PARTICLES
RESONANCE PARTICLES
SEMILEPTONIC DECAY
TARGETS
WEAK PARTICLE DECAY