Quantum design in the study of pycnonuclear reactions in compact stars and new quasibound states
Quantum effects in pycnonuclear reactions in compact stars at zero temperatures are studied with high precision. The reaction 16O + 16O was analyzed using the method of multiple internal reflections. The study of such reactions requires full consideration of quantum fluxes in the internal nuclear re...
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Institute for Nuclear Research, National Academy of Sciences of Ukraine
2023-06-01
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| Series: | Ядерна фізика та енергетика |
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| Online Access: | http://jnpae.kinr.kiev.ua/24.2/Articles_PDF/jnpae-2023-24-0093-Shaulskyi.pdf |
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| author | K. A. Shaulskyi S. P. Maydanyuk |
| author_facet | K. A. Shaulskyi S. P. Maydanyuk |
| author_sort | K. A. Shaulskyi |
| collection | DOAJ |
| description | Quantum effects in pycnonuclear reactions in compact stars at zero temperatures are studied with high precision. The reaction 16O + 16O was analyzed using the method of multiple internal reflections. The study of such reactions requires full consideration of quantum fluxes in the internal nuclear region. This reduces the rate and number of pycnonuclear reactions up to 1.8 times. This leads to the appearance of new states (which we call quasibound states) where the compound nuclear system is formed with maximal probability. As shown, the minimal energy of such a state is slightly higher than the energy of zero-mode oscillations in the lattice nodes in the pycnonuclear reaction, however, the probability of the formation of a compound system in a quasibound state is significantly greater than the corresponding probability in a state of zero-mode oscillations. It is reasonable to say that the frequency of reactions in quasi-bound states is more likely than in states of zero-mode oscillations. This can lead to significant changes in estimates of reaction rates in stars. |
| format | Article |
| id | doaj-art-3a8ca6dd12234192af0154fe5ed3e310 |
| institution | OA Journals |
| issn | 1818-331X 2074-0565 |
| language | English |
| publishDate | 2023-06-01 |
| publisher | Institute for Nuclear Research, National Academy of Sciences of Ukraine |
| record_format | Article |
| series | Ядерна фізика та енергетика |
| spelling | doaj-art-3a8ca6dd12234192af0154fe5ed3e3102025-08-20T02:16:29ZengInstitute for Nuclear Research, National Academy of Sciences of UkraineЯдерна фізика та енергетика1818-331X2074-05652023-06-0124293105https://doi.org/10.15407/jnpae2023.02.093Quantum design in the study of pycnonuclear reactions in compact stars and new quasibound statesK. A. Shaulskyi0S. P. Maydanyuk1Institute for Nuclear Research, National Academy of Sciences of Ukraine, Kyiv, UkraineInstitute for Nuclear Research, National Academy of Sciences of Ukraine, Kyiv, UkraineQuantum effects in pycnonuclear reactions in compact stars at zero temperatures are studied with high precision. The reaction 16O + 16O was analyzed using the method of multiple internal reflections. The study of such reactions requires full consideration of quantum fluxes in the internal nuclear region. This reduces the rate and number of pycnonuclear reactions up to 1.8 times. This leads to the appearance of new states (which we call quasibound states) where the compound nuclear system is formed with maximal probability. As shown, the minimal energy of such a state is slightly higher than the energy of zero-mode oscillations in the lattice nodes in the pycnonuclear reaction, however, the probability of the formation of a compound system in a quasibound state is significantly greater than the corresponding probability in a state of zero-mode oscillations. It is reasonable to say that the frequency of reactions in quasi-bound states is more likely than in states of zero-mode oscillations. This can lead to significant changes in estimates of reaction rates in stars.http://jnpae.kinr.kiev.ua/24.2/Articles_PDF/jnpae-2023-24-0093-Shaulskyi.pdfpycnonuclear reactionscompact starneutron starmultiple internal reflectionscoefficients of penetrability and reflectionfusionquasibound statecompound nucleusdense nuclear matterzero mode oscillationstunneling. |
| spellingShingle | K. A. Shaulskyi S. P. Maydanyuk Quantum design in the study of pycnonuclear reactions in compact stars and new quasibound states Ядерна фізика та енергетика pycnonuclear reactions compact star neutron star multiple internal reflections coefficients of penetrability and reflection fusion quasibound state compound nucleus dense nuclear matter zero mode oscillations tunneling. |
| title | Quantum design in the study of pycnonuclear reactions in compact stars and new quasibound states |
| title_full | Quantum design in the study of pycnonuclear reactions in compact stars and new quasibound states |
| title_fullStr | Quantum design in the study of pycnonuclear reactions in compact stars and new quasibound states |
| title_full_unstemmed | Quantum design in the study of pycnonuclear reactions in compact stars and new quasibound states |
| title_short | Quantum design in the study of pycnonuclear reactions in compact stars and new quasibound states |
| title_sort | quantum design in the study of pycnonuclear reactions in compact stars and new quasibound states |
| topic | pycnonuclear reactions compact star neutron star multiple internal reflections coefficients of penetrability and reflection fusion quasibound state compound nucleus dense nuclear matter zero mode oscillations tunneling. |
| url | http://jnpae.kinr.kiev.ua/24.2/Articles_PDF/jnpae-2023-24-0093-Shaulskyi.pdf |
| work_keys_str_mv | AT kashaulskyi quantumdesigninthestudyofpycnonuclearreactionsincompactstarsandnewquasiboundstates AT spmaydanyuk quantumdesigninthestudyofpycnonuclearreactionsincompactstarsandnewquasiboundstates |