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Эта публикация цитируется в 5 научных статьях (всего в 5 статьях)
ПОЛЯ, ЧАСТИЦЫ, ЯДРА
Phonon-particle coupling effects in odd-even double mass differences of magic nuclei
E. E. Sapersteinab, M. Baldoc, N. V. Gnezdilovd, S. V. Tolokonnikoveb a National Research Nuclear University MEPhI, 115409 Moscow, Russia
b National Research Centre "Kurchatov Institute", 123182 Moscow, Russia
c INFN, Sezione di Catania, I-95125 Catania, Italy
d Instituut-Lorentz, Universiteit Leiden, P.O. Box 9506, 2300 RA Leiden, The Netherlands
e Moscow Institute of Physics and Technology, 141700 Dolgoprudny, Russia
Аннотация:
A method is developed to consider the particle-phonon coupling (PC) effects in the problem of finding odd-even double mass differences (DMD) of magic nuclei within the approach starting from the free $NN$-potential. Three PC effects are taken into account, the phonon induced interaction, the renormalization of the “ends” due to the $Z$-factors and the change of the single-particle energies. We use the perturbation theory in $g^2_L$, where $g_L$ is the vertex of the $L$-phonon creation. PC corrections to single-particle energies are found self-consistently. In addition to the usual pole diagram, the phonon “tadpole” diagram is taken into account approximately. Results for double-magic $^{132}$Sn and $^{208}$Pb nuclei show that the PC corrections make agreement with the experimental data better.
Поступила в редакцию: 23.11.2015 Исправленный вариант: 02.12.2015
Образец цитирования:
E. E. Saperstein, M. Baldo, N. V. Gnezdilov, S. V. Tolokonnikov, “Phonon-particle coupling effects in odd-even double mass differences of magic nuclei”, Письма в ЖЭТФ, 103:1 (2016), 3–8; JETP Letters, 103:1 (2016), 1–7
Образцы ссылок на эту страницу:
https://www.mathnet.ru/rus/jetpl4824 https://www.mathnet.ru/rus/jetpl/v103/i1/p3
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