Published 2019
| Version v1
Book
Pygmy and giant dipole resonances in 48,50Ca and 68,70Ni
- 1. Lab. Teoreticheskoj Fiziki im. N.N. Bogolyubova OIYaI, Dubna (Joint Institute for Nuclear Research (JINR))
- 2. Inst. Yadernoj Fiziki, Univ. Parizh-Yug, Orseh (France)
Description
Starting from the quasiparticle random phase approximation based on the Skyrme interaction SLy5, we study the effects of phonon-phonon coupling (PPC) on the E1 strength distributions of neutron-rich calcium and nickel isotopes. Using the same set of parameters, we describe available experimental data for 48Ca, 68Ni and give prediction for 50Ca, 70Ni. The inclusion of the PPC results in the formation of low-energy 1- states of 48Ca. There is an impact of the PPC effect on low-energy E1 strength of 48Ca. The effect of the low-energy E1 strength on the electric dipole polarizability is discussed. We predict a strong increase of the summed E1 strength below 10 MeV (12 MeV), with increasing neutron number from 48Ca (68Ni) till 50Ca (70Ni)
Abstract (Russian)
В приближении случайных фаз с остаточным взаимодействием Скирма SLy5 изучается влияние связи между одно- и двухфононными компонентами волновых функций на спектр дипольных возбуждений в нейтронно-избыточных изотопах кальция и никеля. Взаимодействие со сложными конфигурациями приводит к появлению силы Е1 переходов в низкоэнергетической области и улучшает описание экспериментальных данных в случае 48Ca. В докладе также обсуждается влияние связи между одно- и двухфононными компонентами волновых функций на электрическую дипольную поляризацию. Предсказывается сильное увеличение суммарной силы Е1 переходов ниже 10 МэВ (12 МэВ) в случае ядер 50Ca (70Ni) в отличие от 48Ca (68Ni)Additional details
Additional titles
- Original title (Russian)
- Пигми- и гигантский дипольный резонанс в ⁴⁸,⁵⁰Ca и ⁶⁸,⁷⁰Ni
Publishing Information
- Publisher
- NIYaU MIFI
- Imprint Place
- Moscow (Russian Federation)
- ISBN
- 978-5-7262-2544-9
- Imprint Title
- V International conference #Left-Pointing Double Angle Quotation Mark#Laser, plasma research and technologies#Right-Pointing Double Angle Quotation Mark# LaPlaz-2019. Collection of scientific papers. Part 1
- Imprint Pagination
- 348 p.
- Journal Page Range
- p. 205-206
Conference
- Title
- 5. International conference 'Laser, plasma research and technologies' LaPlaz-2019
- Original Conference Title
- V Mezhdunarodnaya konferentsiya «Lazernye, plazmennye issledovaniya i tekhnologii» LaPlaz-2019
- Dates
- 12-15 Feb 2019
- Place
- Moscow (Russian Federation)
INIS
- Country of Publication
- Russian Federation
- Country of Input or Organization
- Russian Federation
- INIS RN
- 52105655
- Subject category
- S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
- Resource subtype / Literary indicator
- Conference, Numerical Data
- Descriptors DEI
- CALCIUM 48; CALCIUM 50; E1-TRANSITIONS; ELECTRIC DIPOLE MOMENTS; GIANT RESONANCE; NICKEL 68; NICKEL 70; PARTICLE ELECTRIC POLARIZABILITY; RANDOM PHASE APPROXIMATION; SKYRME POTENTIAL; STRENGTH FUNCTIONS; THEORETICAL DATA; WAVE FUNCTIONS
- Descriptors DEC
- ALKALINE EARTH ISOTOPES; APPROXIMATIONS; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; CALCIUM ISOTOPES; CALCULATION METHODS; DATA; DIPOLE MOMENTS; ELECTRIC MOMENTS; ENERGY-LEVEL TRANSITIONS; EVEN-EVEN NUCLEI; FUNCTIONS; INFORMATION; INTERMEDIATE MASS NUCLEI; ISOTOPES; MULTIPOLE TRANSITIONS; NICKEL ISOTOPES; NUCLEI; NUCLEON-NUCLEON POTENTIAL; NUMERICAL DATA; PARTICLE POLARIZABILITY; PARTICLE PROPERTIES; POTENTIALS; RADIOISOTOPES; RESONANCE; SECONDS LIVING RADIOISOTOPES; STABLE ISOTOPES
Optional Information
- Notes
- 6 refs. Imprint:V Mezhdunarodnaya konferentsiya #Left-Pointing Double Angle Quotation Mark#Lazernye, plazmennye issledovaniya i tekhnologii#Right-Pointing Double Angle Quotation Mark# LaPlaz-2019. Sbornik nauchnykh trudov. Chast' 1