First observation of the (4He,8B) reaction

Autor:	R.S. Tickle, W.S. Gray, R. D. Bent
Rok vydání:	1979
Předmět:	Cross section (geometry) Physics Nuclear and High Energy Physics Yield (chemistry) Analytical chemistry Nuclear fusion Atomic physics Excitation
Zdroj:	Zeitschrift f�r Physik A Atoms and Nuclei. 292:281-284
ISSN:	1434-601X 0340-2193
DOI:	10.1007/bf01547474
Popis:	The (4He,8B) reaction on27Al and66Zn targets has been studied atE α=109MeV, the first observation of this reaction. Five groups appear in the first 4 MeV of excitation in the23Ne spectrum, with laboratory differential cross sections ranging from 35 to 384 nb/sr atθ lab=80. Individual levels in62Co were not resolved in the exposure on the66Zn target. However,8B events were observed which are tentatively attributed to the66Zn(α,8B)62Co reaction, since contributions from plausible target contaminants can be eliminated on the basis ofQ value. The observed yield at 80 indicates a laboratory cross section of 540 nb/sr summed over the first 4.6 MeV of excitation in62Co.
Databáze:	OpenAIRE
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