Search for Semileptonic Decays of Photoproduced Charmed Mesons

Thesis/Dissertation · Sat Jan 01 00:00:00 EST 1977

DOI:https://doi.org/10.2172/1435922· OSTI ID:1435922

Coleman, Richard Neal ^[1]

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1. Illinois U., Urbana

In the broad band neutral beam at Fermilab, a search for photoproduction of charmed D mesons has been done using photons of 100 to 300 GeV. The reaction considered was $$\gamma + Be \to D_{\to (K^0_s\eta \pi^{\pm})}\overline{D}_{\to (Leptons + \dots)} + X$$ No statistically significant evidence for D production is observed based on the $$K^0_s \eta \pi^{\pm}$$ mass spectrum. The sensitivity of the search is commensurate with theoretical estimates of $$\sigma(\gamma\rho \to D\overline{D} + X) \sim$$ 500 nb, however this is dependent on branching ratios and photoproduction models. An appendix contains data on a similar search for semileptonic decays of charmed baryons.

• Research Organization: Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
• Sponsoring Organization: USDOE Office of Science (SC), High Energy Physics (HEP)
• DOE Contract Number: AC02-07CH11359
• OSTI ID: 1435922
• Report Number(s): UMI-78-03964; FERMILAB-THESIS-1977-01; 123435
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS