Можливiсть вимiру ваги P-станiв основного стану ядра 4He
Using the experimental data on the total cross-sections of 4He(y, p)3H and 4He(y, n)3He reactions with S = 1 transitions as the base, we discuss the possibility of measuring the probability of 3P0-states in the ground state of 4He nucleus. The analysis of the experimental data has suggested the conc...
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| Дата: | 2019 |
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| Формат: | Стаття |
| Мова: | English |
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Publishing house "Academperiodika"
2019
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| Онлайн доступ: | https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2019242 |
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| Назва журналу: | Ukrainian Journal of Physics |
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ujp2-article-20192422019-04-11T08:03:13Z Possible Measurement of the Probability of P-States in the Ground State of 4He Nucleus Можливiсть вимiру ваги P-станiв основного стану ядра 4He Lyakhno, Yu. P. nuclear forces few-body systems - Using the experimental data on the total cross-sections of 4He(y, p)3H and 4He(y, n)3He reactions with S = 1 transitions as the base, we discuss the possibility of measuring the probability of 3P0-states in the ground state of 4He nucleus. The analysis of the experimental data has suggested the conclusion that, within the statistical error, the ratio of the cross section of the reaction in the collinear geometry to the cross section of the electrical dipole transition with the spin S = 0 at the angle of the emission of nucleons 0N = 90∘vp and vn in the range of photon energies 22 ≤ Ey ≤ 100 MeV does not depend from the photon energy. This is in agreement with the assumption that the S = 1 transitions can originate from 3P0 states of 4He nucleus. The average values of vp and vn in the mentioned photon energy range are calculated as vp = 0 .01 ± 0 .002 and vn = 0 .015 ± 0 .003 (the errors are statistical only). На основi експериментальних даних про повнi поперечнi перерiзи переходiв iз спiном S = 1 в реакцiях 4He(y, p)3H i 4He(y, n)3He обговорюється можливiсть вимiру ваги P-станiв основного стану ядра 4He. В результатi аналiзу експериментальних даних було знайдено, що в межах статистичних похибок вiдношення перерiзу реакцiї в колiнеарнiй геометрiї до перерiзу електричного дипольного переходу iз спiном S = 0 при полярному куту емiсiї нуклона 0N = 90∘ vp i vn в областi енергiй фотонiв 22 ≤ Ey ≤ 100 MeВ не залежить вiд енергiї фотонiв. Це узгоджується з допущенням про те, що переходи iз спiном S = 1 можуть походити iз P-станiв ядра 4He. Було обчислено середнi значення величин vp i vn в цiй областi енергiй фотонiв, якi становлять vp = 0,01±0,002 i vn = 0,015±0,003 (похибки статистичнi). Publishing house "Academperiodika" 2019-01-19 Article Article Peer-reviewed Рецензована стаття application/pdf https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2019242 10.15407/ujpe60.04.0309 Ukrainian Journal of Physics; Vol. 60 No. 4 (2015); 309 Український фізичний журнал; Том 60 № 4 (2015); 309 2071-0194 2071-0186 10.15407/ujpe60.04 en https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2019242/1230 Copyright (c) 2019 Bogolyubov Institute for Theoretical Physics, National Academy of Sciences of Ukraine |
| institution |
Ukrainian Journal of Physics |
| baseUrl_str |
|
| datestamp_date |
2019-04-11T08:03:13Z |
| collection |
OJS |
| language |
English |
| topic_facet |
nuclear forces few-body systems - |
| format |
Article |
| author |
Lyakhno, Yu. P. |
| spellingShingle |
Lyakhno, Yu. P. Можливiсть вимiру ваги P-станiв основного стану ядра 4He |
| author_facet |
Lyakhno, Yu. P. |
| author_sort |
Lyakhno, Yu. P. |
| title |
Можливiсть вимiру ваги P-станiв основного стану ядра 4He |
| title_short |
Можливiсть вимiру ваги P-станiв основного стану ядра 4He |
| title_full |
Можливiсть вимiру ваги P-станiв основного стану ядра 4He |
| title_fullStr |
Можливiсть вимiру ваги P-станiв основного стану ядра 4He |
| title_full_unstemmed |
Можливiсть вимiру ваги P-станiв основного стану ядра 4He |
| title_sort |
можливiсть вимiру ваги p-станiв основного стану ядра 4he |
| title_alt |
Possible Measurement of the Probability of P-States in the Ground State of 4He Nucleus |
| description |
Using the experimental data on the total cross-sections of 4He(y, p)3H and 4He(y, n)3He reactions with S = 1 transitions as the base, we discuss the possibility of measuring the probability of 3P0-states in the ground state of 4He nucleus. The analysis of the experimental data has suggested the conclusion that, within the statistical error, the ratio of the cross section of the reaction in the collinear geometry to the cross section of the electrical dipole transition with the spin S = 0 at the angle of the emission of nucleons 0N = 90∘vp and vn in the range of photon energies 22 ≤ Ey ≤ 100 MeV does not depend from the photon energy. This is in agreement with the assumption that the S = 1 transitions can originate from 3P0 states of 4He nucleus. The average values of vp and vn in the mentioned photon energy range are calculated as vp = 0 .01 ± 0 .002 and vn = 0 .015 ± 0 .003 (the errors are statistical only). |
| publisher |
Publishing house "Academperiodika" |
| publishDate |
2019 |
| url |
https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2019242 |
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AT lyakhnoyup possiblemeasurementoftheprobabilityofpstatesinthegroundstateof4henucleus AT lyakhnoyup možlivistʹvimiruvagipstanivosnovnogostanuâdra4he |
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2025-10-02T01:16:14Z |
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