Download or read book Search for Semileptonic Decays of Photoproduced Charmed Mesons. [100 to 300 GeV, No Statistically Significant Evidence]. written by and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: 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°/sub s/n..pi../sup +-/. No statistically significant evidence for D production is observed based on the K°/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.