Abstract
The double differential cross-sections for the (p,α) reaction have been measured for the isotope pairs90,91Zr at 24.02 MeV and142,143Nd at 23.1 MeV. The cross-sections are separated into compound nucleus and multistep direct components by the subtraction method and analyzed using the Hauser-Feshbach and Feshbach-Kerman-Koonin theories. The direct interaction is assumed to take place by the alpha-particle knockout process. The extent to which the unpaired neutrons in91Zr and143Nd act as spectators in the reaction is studied and the role of pairing effects assessed.
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Feshbach H., Kerman A., Koonin S.: Ann.Phys.125,429,1980
Gadioli E., Hodgson P. E.: Pre-Equilibrium Nuclear Reactions. Oxford 1992
Bonetti R., Chadwick M. B., Hodgson P. E., Carlson B. V., Hussein M. S.: Phys. Rep.202, 171 (1991)
Bonetti R., Koning A. J., Akkermans J. M., Hodgson P. E.:, Phys.Rep.247, 1 (1994)
Olaniyi H. B., Demetriou P., Hodgson P. E.: J.Phys.G21, 361 (1995)
Gadioli E., Gadioli Erba E., Glowacka L., Jaskola M., Turkiewicz J., Zemlo L.: Phys.Rev.C24, 2331 (1981)
Gadioli E., Gadioli Erba E., Gaggini R., Guazzoni P., Michelato P., Moroni A. and Zetta L.: Z.Phys.A310, 43 (1983)
Gadioli E., Gadioli Erba E., Guazzoni P., Zetta L.: Phys.Rev.C37, 79 (1988)
Watanabe Y., Aoto A., Kashimoto H., Chiba S., Fukahori T., Hasegawa K., Mizumoto M., Meigo S., Sugimoto M., Yamanouti Y., Koori N., Chadwick M. B. and Hodgson P. E.: Phys.Rev.C51, 1891 (1995)
Watanabe Y., Kumabe I., Hyakutake M., Koori N., Ogawa K., Orito K., Akagi K., Oda N.: Phys.Rev.C36, 1325 (1987)
Kumabe I., Mito Y., Hyakutake M., Koori N., Sakai H., Watanabe Y.: Phys.Rev.C35, 467 (1987)
Guazzoni P., Michelato P., Moroni A., Taiocchi G. F., Zetta L.: Nucl.Instr.Methods 200, 323 (1982)
Demetriou P., Kanjanarat P., Hodgson P. E.: J.Phys.G19, L193 (1994); G20, 1779 (1994)
Kunz P. D.: University of Colorado Report, 1969
Satchler G. R.: Direct Nuclear Reactions. Oxford University Press, Oxford 1983
Kumabe I., Inenaga Y., Hyakutake M., Koori N., Watanabe Y., Ogawa K., Orito, K.: Phys.Rev.C38, 2531 (1988)
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Communicated by X. Campi
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Guazzoni, P., Zetta, L., Demetriou, P. et al. Multistep direct analysis of (p, α) reactions to the continuum. Z. Phys. A — Hadrons and Nuclei 354, 53–58 (1996). https://doi.org/10.1007/s002180050012
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DOI: https://doi.org/10.1007/s002180050012