Abstract
The new dynamic model of light charged particle (LCP) formation in ternary fission is presented. The model is based on the assumption that light particles are formed as a result of two random neck ruptures during the time interval about one single-particle period. The connection of the final stage of ternary fission and of the saddle point descent stage was obtained in the framework of the density moments method. The analysis of LCP formation has shown that LCP mass and charge distributions are strongly governed by statistical nucleon exchange in the LCP-light fragment double system. New semiclassical expressions for the calculations of LCP yields and relative ternary fission probability are given. The results of calculations are in satisfactory agreement with the experimental data.
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Schmitt, H.W., Neiler, J.H., Walter, F.I., Chetham-Strode, A.: Phys. Rev. Lett.9, 427 (1962)
Fraenkel, Z.: Phys. Rev. C15, 1283 (1967)
Mehta, G.K., Poitou, J., Ribrag, M., Signarbieux, C.: Phys. Rev. C7, 373 (1973)
Asghar, M., Carles, C., Chastel, R., Doan, T.P., Ribrag, M., Signarbieux, C.: Nucl. Phys. A145, 657 (1970)
Fong, P.: Phys. Rev. C3, 2025 (1971)
Valsky, G.V.: Yad. Fiz.24, 270 (1976)
Carjan, N., Sandulesku, A., Pashkevich, V.V.: Phys. Rev. C11, 782 (1975)
Koldobsky, A.B., Krainov, V.P.: Yad. Fiz.31, 1168 (1980)
Negele, J.W., Koonin, S.E., Moller, P., Nix, J.R., Sierk, A.J.: Phys. Rev. C17, 1098 (1978)
Kolb, D., Cusson, R.Y., Schmitt, H.W.: Phys. Rev. C10, 1529 (1974)
Halpern, I.: Ann. Rev. Nucl. Sci.21, 45 (1971)
Rubchenya, V.A.: Yad. Fiz.35, 576 (1982)
Volkov, N.G., Emelyanov, V.M., Koldobsky, A.B., Krainov, V.P.: Yad. Fiz.28, 621 (1978)
Pracash, M., Ramamurthy, V.S., Kapoor, S.S.: Proceedings of the IAEA Symposium on Physics and Chemistry of Fission. Vol. 2, p. 353. Vienna: IAEA 1980
Rubchenya, V.A., Yavshits, S.G.: Yad. Fiz.40, 649 (1984)
Strutinsky, V.M., Lyashchenko, N.Ya., Popov, N.A.: Nucl. Phys.46, 639 (1963)
Guet, C.R., Bengtson, R., Brack, M.: Proceedings of the IAEA Symposium on Physics and Chemistry of Fission. Vol. 2, p. 411. Vienna: IAEA 1980
Davies, K.T.R., Managan, R.A., Nix, J.R., Sierk, A.J.: Phys. Rev. C16, 1890 (1977)
Davies, K.T.R., Sierk, A.J., Nix, J.R.: Phys. Rev. C13, 2385 (1976)
Dyachenko, A.T., Rubchenya, V.A., Eismont, V.P.: Izv. Akad. Nauk SSSR45, 764 (1981)
Brosa, U., Grossmann, S.: Z. Phys. A — Atoms and Nuclei310, 1977 (1983)
Siwek-Wilczynska, K., Wilczynski, J.: Nucl. Phys. A264, 115 (1976)
Lifshitz, E.M., Pitajevsky, L.P.: Physical kinetics. Moskow: Nauka 1979
Pashkevich, V.V.: Nucl. Phys. A169, 275 (1971)
Bohr, A., Mottelson, B.: Nuclear structure. Vol. 1. New York: Benjamin 1969
Fraenkel, Z., Thompson, S.G.: Phys. Rev. Lett.13, 438 (1964)
Feather, N.: Proceedings of the IAEA Symposium on Physics and Chemistry of Fission, p. 387. Vienna: IAEA 1965
Volkov, V.V.: Phys. Report C44, 93 (1978)
Weidenmuller, H.A.: Progr. Part. Nucl. Phys.3, 49 (1980)
Kondurov, I.A., Nikitin, A.M., Seliverstov, D.M.: Bull. LINP Data Centre6, (1977)
Unik, J.P., Gindler, J.E., Glendenin, L.E., Flynn, K.F., Gorsky, A., Sjoblom, R.D.: Proceedings of the IAEA Symposium on Physics and Chemistry of Fission. Vol. 2, p. 19. Vienna: IAEA 1973
Myers, W.D., Swiatecki, W.J.: Ark. Fys.36, 343 (1967)
Tsang, C.F.: Phys. Scr.10A, 90 (1974)
Wapstra, A.H., Audi, G.: Nucl. Phys. A432, 1 (1985)
Matvejev, G.V., Yavshits, S.G.: Bull. of LINP Data Centre Vol.12 (1986)
Garvey, G.T., Kelson, I.: Phys. Rev. Lett.16, 197 (1966)
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Rubchenya, V.A., Yavshits, S.G. Dynamic treatment of ternary fission. Z. Physik A - Atomic Nuclei 329, 217–228 (1988). https://doi.org/10.1007/BF01283778
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DOI: https://doi.org/10.1007/BF01283778