Damping of high-energy particle-hole-type nuclear excitations: A semimicroscopic model. Physical Review C - Nuclear Physics Volume 87, Issue 4, 23 April 2013, Article number 044330
14 сентября 2018
188
Предметная область | — |
Выходные данные | — |
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Вид публикации | Статья |
Контактные данные автора публикации | Urin, M.H. National Research Nuclear University MEPhI |
Ссылка на публикацию в интернете | www.scopus.com/record/display.url?eid=2-s2.0-84877150280&origin=resultslist&sort=plf-f&src=s&st1=MEPhI&nlo=&nlr=&nls=&sid=F0743CC1BB1CEC168410A18CB87C48A7.Vdktg6RVtMfaQJ4pNTCQ:6500&sot=b&sdt=b&sl=31&s=AFFIL(MEPhI) AND PUBYEAR = 2013&relpos=296&rel |
Аннотация
A semimicroscopic model (particle-hole dispersive optical model) is formulated to describe the main relaxation modes of high-energy particle-hole-type excitations in medium-heavy mass nuclei. Within this model, Landau damping and the single-particle continuum are considered microscopically, while the spreading effect is treated phenomenologically, employing a statistical assumption. Description of direct nucleon decay of the above-mentioned excitations (including giant resonances) is a unique feature of the proposed model, which in applying to closed-shell nuclei is arranged for practical implementations. The methodical similarity of formulations of the single-quasiparticle and particle-hole optical models is emphasized.
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