Population of 0+ excited states in reactions with transmission of two nucleons

Izvestiya vysshikh uchebnykh zavedenii. Fizika ◽

10.17223/00213411/64/3/121 ◽

2021 ◽

pp. 121-125

Author(s):

S.G. Abdulvahabova ◽

◽

I.G. Afandiyeva ◽

Keyword(s):

Rare Earth ◽

Excited States ◽

Cross Sections ◽

Transfer Reactions ◽

Excitation Energies ◽

Nucleon Transfer ◽

Quadrupole Interactions ◽

Physical Quantities ◽

The Rare Earth

Properties of 0+ excited states, generated by the pair and quadrupole-quadrupole interactions in some isotopes of the rare-earth region, are studied. The excitation energies for 0+ states, E (0)- and E (2)-transitions, Rasmussen parameter X and cross sections for two nucleon transfer reactions are calculeted taking into account the mixing of excited states with different values. The contribution of mixing excited states underestimates the values of the calculated physical quantities.

Download Full-text

Population of 0+ Excited States in Two-Nucleon Transfer Reactions

Russian Physics Journal ◽

10.1007/s11182-021-02356-9 ◽

2021 ◽

Author(s):

S. G. Abdulvahabova ◽

I. G. Afandyeva

Keyword(s):

Excited States ◽

Transfer Reactions ◽

Nucleon Transfer

Download Full-text

COLLECTIVE EXCITED STATES IN EVEN–EVEN NUCLEI WITH QUADRUPOLE AND OCTUPOLE DEFORMATIONS

International Journal of Modern Physics E ◽

10.1142/s0218301312500449 ◽

2012 ◽

Vol 21 (04) ◽

pp. 1250044 ◽

Cited By ~ 7

Author(s):

M. S. NADIRBEKOV ◽

G. A. YULDASHEVA ◽

N. MINKOV ◽

W. SCHEID

Keyword(s):

Rare Earth ◽

Excited States ◽

Energy Levels ◽

Collective Model ◽

Rare Earth Nuclei ◽

The Rare Earth

Deformed even–even nuclei with quadrupole and octupole deformations are investigated on the basis of a nonadiabatical collective model. It is shown that the model satisfactorily describes energy levels of the yrast and first nonyrast bands with alternating parity in the rare-earth nuclei 150 Nd , 152, 154 Sm , 154 Gd , 156 Dy , 162, 164 Er and the actinides 232, 234, 236, 238 U . In the nuclei 156, 158 Gd , 224 Ra , 228 Th and 240 Pu the energy levels of second nonyrast bands are also described. The structure of the considered alternating-parity bands is examined in terms of odd–even staggering diagrams.

Download Full-text

Simplified DWBA for Heavy Ion Induced Transfer at High Energies

Australian Journal of Physics ◽

10.1071/ph790173 ◽

1979 ◽

Vol 32 (3) ◽

pp. 173 ◽

Cited By ~ 1

Author(s):

LR Dodd

Keyword(s):

Excited States ◽

Cross Sections ◽

Ground State ◽

Optical Model ◽

Heavy Ion ◽

Transfer Reactions ◽

Angular Distributions ◽

High Energies ◽

Scattering States ◽

Exact Calculations

The treatment of the distorted wave Born approximation (DWBA) for transfer reactions at high energies between complex nuclei due to Braun-Munzinger and Harney (1974) is simplified by introducing eikonal-like representations for the elastic scattering states. Simple expressions for the differential cross sections are derived. The model includes recoil approximately and takes into account the strong absorption of the nuclear cores. Reasonable values for the parameters of the model wavefunctions are determined by comparison with the usual optical model wavefunctions. Angular distributions calculated for the model are compared with the results of exact finite-range DWBA calculations and experimental data for transitions to the ground state and excited states of 13C in the reaction 12C(14N,13N)13C at several energies. The model reproduces the general features of the exact calculations, giving reasonable fits for the transitions to the ground state and the 1ds/2 (3�85 MeV) state. The transition to the 2S1/2 (3 �09 MeV) state appears to be anomalous as in the case of the full DWBA theory.

Download Full-text