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Pis'ma v Zh. Èksper. Teoret. Fiz., 2012, Volume 96, Issue 5, Pages 310–314 (Mi jetpl3214)  

This article is cited in 6 scientific papers (total in 6 papers)

FIELDS, PARTICLES, AND NUCLEI

Possible observation of light neutron nuclei in the alpha-particle-induced fission of $^{238}$U

B. G. Novatskii, E. Yu. Nikolskii, S. B. Sakuta, D. N. Stepanov

National Research Centre "Kurchatov Institute"

Abstract: Searches for nuclear-stable multineutrons among products originating from the fission of $^{238}$U nuclei that is induced by 62-MeV alpha particles were performed by the activation method. The reaction involving the transfer of four neutrons and occurring on the isotope $^{88}$Sr, $^{88}$Sr($ ^xn,(x-4)n) ^{92}$Sr$ \to ^{92}$Y, was used to identify nuclear-stable multineutrons. A line at the energy of $E = 1384$ keV was found in the measured gamma-ray spectra of irradiated samples. This line, together with the measured time dependence of the decrease in its activity, is indicative of the formation of the beta-active nucleus $^{92}$Sr. This result was reproduced in repeated measurements. It suggests the possible existence of nuclear-stable multineutrons $( ^xn)$ for $x\geq6$. The differential cross section for the $ ^xn$ yield at an angle of $30^\circ$ in the alpha-particle-induced fission of $^{238}$U was about $\sim6\cdot10^{-2} $ mb/sr.

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English version:
Journal of Experimental and Theoretical Physics Letters, 2012, 96:5, 280–284

Bibliographic databases:

Document Type: Article
Received: 17.07.2012

Citation: B. G. Novatskii, E. Yu. Nikolskii, S. B. Sakuta, D. N. Stepanov, “Possible observation of light neutron nuclei in the alpha-particle-induced fission of $^{238}$U”, Pis'ma v Zh. Èksper. Teoret. Fiz., 96:5 (2012), 310–314; JETP Letters, 96:5 (2012), 280–284

Citation in format AMSBIB
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\paper Possible observation of light neutron nuclei in the alpha-particle-induced fission of $^{238}$U
\jour Pis'ma v Zh. \`Eksper. Teoret. Fiz.
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\vol 96
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\pages 310--314
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\jour JETP Letters
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\crossref{https://doi.org/10.1134/S0021364012170110}
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    Citing articles on Google Scholar: Russian citations, English citations
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    This publication is cited in the following articles:
    1. B. G. Novatskii, S. B. Sakuta, D. N. Stepanov, “Detection of light neutron nuclei in the alpha-particle-induced fission of $^{238}$U by the activation method with $^{27}$Al”, JETP Letters, 98:11 (2013), 656–660  mathnet  crossref  crossref  isi  elib  elib
    2. Dudkin G.N. Garapatskii A.A. Padalko V.N., “Method of Searching for Neutron Clusters”, Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc. Equip., 760 (2014), 73–78  crossref  adsnasa  isi  scopus
    3. K. A. Gridnev, V. N. Tarasov, D. K. Gridnev, W. Greiner, J. Viñas, “Resonance capture of multineutrons by the $^{88}$Sr and $^{27}$Al nuclei”, JETP Letters, 102:6 (2015), 321–323  mathnet  crossref  crossref  isi  elib  elib
    4. Bystritsky V.M. Dudkin G.N. Kuznetsov S.I. Varlachev V.A. Padalko V.N., “Experiment to find the neutron clusters in the decay of 238U nuclei”, Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc. Equip., 834 (2016), 164–168  crossref  isi  scopus
    5. V. M. Bystritsky, G. N. Dudkin, S. I. Kuznetsov, V. N. Padalko, M. S. Syrtanov, “A direct search for neutron nuclei in decay of 238U”, Int. J. Mod. Phys. E-Nucl. Phys., 26:3 (2017), 1750004  crossref  isi  scopus
    6. Kezerashvili R.Ya., “Search of Trineutron and Tetraneutron”, Fission and Properties of Neutron-Rich Nuclei, ed. Hamilton J. Ramayya A. Talou P., World Scientific Publ Co Pte Ltd, 2018, 403–411  isi
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