Isoscalar giant monopole resonance in Ca isotope chain

Семинары

Семинар «Ядерная физика низких энергий»

Дата и время: пятница, 19 мая 2023 г., в 14:30

Место: аудитория им. Блохинцева (4-й этаж), Лаборатория теоретической физики им. Н.Н. Боголюбова; онлайн-семинар в Zoom

Тема семинара: «Isoscalar giant monopole resonance in the Ca isotope chain»

Авторы: Николай Арсеньев, Алексей Северюхин

Докладчик: Николай Арсеньев

Аннотация:

The properties of the isoscalar giant monopole resonance (ISGMR) in the Ca isotope chain are analysed in the framework of a microscopic model based on a Skyrme interaction. The effects of the coupling between one-, two- and three-phonon terms in the wave functions of 0+ states have been studied. Using the same set of parameters, we describe available experimental data. The effects of the phonon-phonon coupling leads to a redistribution of the main monopole strength to lower energy states and also to higher energy tail. It is shown that the gross structure of the ISGMR in the calcium isotopes 40,42,44,46,48Ca is caused by the complex configurations.