Abstract
The intensities of two-step cascades in 43 nuclei of mass number in the range of 28 ≤ A ≤ 200 were approximated to a high degree of precision within a modified version of the practical cascade-gammadecay model introduced earlier. In this version, the rate of the decrease in the model-dependent density of vibrational levels has the same value for any Cooper pair undergoing breakdown. The most probable values of radiative strength functions both for E1 and for M1 transitions are determined by using one or two peaks against a smooth model dependence on the gamma-transition energy. The statement that the thresholds for the breaking of Cooper pairs are higher for spherical than for deformed nuclei is a basic result of the respective analysis. The parameters of the cascade-decay process are now determined to a precision that makes it possible to observe the systematic distinctions between them for nuclei characterized by different parities of neutrons and protons.
Similar content being viewed by others
References
E. V. Vasil’eva, A. M. Sukhovoj, and V. A. Khitrov, Phys. At. Nucl. 64, 153 (2001).
A. M. Sukhovoj and V. A. Khitrov, Preprint No. E3-2005-196, JINR (Joint Inst. Nucl. Res., Dubna, 2005).
A. M. Sukhovoj and V. A. Khitrov, Phys. Part. Nucl. 36, 359 (2005).
A. M. Sukhovoj and V. A. Khitrov, Phys. At. Nucl. 73, 1507 (2010).
A. Bohr and B. R. Mottelson, Nuclear Structure, Vol. 1: Single-Particle Motion (Benjamin, New York, 1969).
A. M. Sukhovoj and V. A. Khitrov, Phys. At. Nucl. 73, 1635 (2010).
L. V. Mitsyna and A. M. Sukhovoj, in Proceedings of the 22nd International Seminar on Interaction of Neutrons with Nuclei, Dubna, May 2014, Preprint No. E3-2015-13, JINR (Joint Inst. Nucl. Res., Dubna, 2015), p. 245. http://isinn.jinr.ru/pastisinns.html
A. M. Sukhovoj, Phys. At. Nucl. 78, 230 (2015).
S. T. Boneva, V. A. Khitrov, A. M. Sukhovoj, and A. V. Vojnov, Nucl. Phys. A 589, 293 (1995).
N. Jovancevich, A. M. Sukhovoj, W. I. Furman, and V. A. Khitrov, in Proceedings of the 20th International Seminar on Interaction of Neutrons with Nuclei, Dubna, May 2012, Preprint No. E3-2013-22, JINR (Joint Inst. Nucl. Res., Dubna, 2013), p. 157. http://isinn.jinr.ru/past-isinns.html
A. V. Ignatyuk, Report INDC-233(L), IAEA (Vienna, 1985).
V. M. Strutinsky, in Proceedings of the International Congress on Nuclear Physics, Paris, France, 1958, p. 617.
Reference Input Parameter Library RIPL-2, Handbook for Calculations of Nuclear Reaction Data, IAEA-TECDOC (2002).
W. Dilg, W. Schantl, H. Vonach, and M. Uhl, Nucl. Phys. A 217, 269 (1973).
S. G. Kadmenskii, V. P.Markushev, and V. I. Furman, Sov. J. Nucl. Phys. 37, 165 (1983).
P. Axel, Phys. Rev. 126, 671 (1962).
D.M. Brink, PhD Thesis (Oxford University, 1955).
V. A. Bondarenko, J. Honzátko, V. A. Khitrov, A. M. Sukhovoj, and I. Tomandl, Fizika B (Zagreb) 11, 201 (2002).
G. Rusev et al., Phys. Rev. C 87, 054603 (2013).
L. A. Malov and V. G. Solov’ev, Sov. J. Nucl. Phys. 26, 384 (1977).
V. A. Kravtsov, Atomic Masses and Nuclear Binding Energies (Atomizdat, Moscow, 1965) [in Russian].
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © A.M. Sukhovoj, L.V. Mitsyna, N. Jovancevic, 2016, published in Yadernaya Fizika, 2016, Vol. 79, No. 3, pp. 207–219.
Rights and permissions
About this article
Cite this article
Sukhovoj, A.M., Mitsyna, L.V. & Jovancevic, N. Overall picture of the cascade gamma decay of neutron resonances within a modified practical model. Phys. Atom. Nuclei 79, 313–325 (2016). https://doi.org/10.1134/S1063778816020174
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S1063778816020174