Quasifreeπ+production studied using theC12(γ, π+n)B11reaction in theΔ(1232)resonance region
Autor: | A. C. Shotter, M. Liang, M. Sauer, D.G. Johnstone, T. Hehl, J. C. McGeorge, T.T.H. Yau, T. Davinson, R. Schneider, G.E. Cross, P. Grabmayr, John A. Mackenzie, R.O. Owens, K. Spaeth, T. Lamparter, R. Beck, P. J. Woods, I. J. D. MacGregor, J. D. Kellie, D. Branford, S.J. Hall, J. Ahrens, P.D. Harty, J. R. M. Annand |
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Rok vydání: | 1996 |
Předmět: | |
Zdroj: | Physical Review C. 54:R6-R9 |
ISSN: | 1089-490X 0556-2813 |
DOI: | 10.1103/physrevc.54.r6 |
Popis: | Results are presented from a coincidence study of the {sup 12}C({gamma},{pi}{sup +}{ital n}){sup 11}B quasifree pion production reaction made in the {Delta}-resonance region using tagged photons. Cross sections for reactions originating on 1{ital p}-shell protons are found to be significantly larger than predicted by calculations based on quasifree pion production. It is suggested that more sophisticated calculations, perhaps including medium effects, may be required to reproduce the data. {copyright} {ital 1996 The American Physical Society.} |
Databáze: | OpenAIRE |
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