Giant resonances at complex excitation energies

1989 ◽  
Vol 40 (5) ◽  
pp. 2195-2202 ◽  
Author(s):  
J. R. Shepard ◽  
D. S. Oakley ◽  
R. J. Peterson
Keyword(s):  
Giant Resonances ◽  
Excitation Energies

scholarly journals SELF-CONSISTENT DESCRIPTION OF COLLECTIVE EXCITATIONS IN THE UNITARY CORRELATION OPERATOR METHOD

2006 ◽  
Vol 15 (02) ◽  
pp. 346-353 ◽  
Author(s):  
N. PAAR ◽  
P. PAPAKONSTANTINOU ◽  
R. ROTH ◽  
H. HERGERT
Keyword(s):  
Random Phase ◽  
Operator Method ◽  
Closed Shell ◽  
Giant Resonances ◽  
Excitation Energies ◽  
Long Range Correlations ◽  
Correlation Operator ◽  
Unitary Correlation Operator Method ◽  
Self Consistent ◽  
Three Body

The fully self-consistent Random Phase Approximation (RPA) is constructed within the Unitary Correlation Operator Method (UCOM), which describes the dominant interaction-induced short-range central and tensor correlations by a unitary transformation. Based on the correlated Argonne V18 interaction, the RPA is employed in studies of multipole response in closed-shell nuclei across the nuclide chart. The UCOM-RPA results in a collective character of giant resonances, and it describes rather well the properties of isoscalar giant monopole resonances. However, the excitation energies of isovector giant dipole resonances and isoscalar giant quadrupole resonances are overestimated due to the missing long-range correlations and three-body contributions.

The many facets of giant resonances at high excitation energies

1996 ◽  
Vol 599 (1-2) ◽  
pp. 29-48 ◽  
Author(s):  
V. Baran ◽  
M. Colonna ◽  
M. Di Toro ◽  
A. Guarnera ◽  
V.N. Kondratyev ◽  
...  
Keyword(s):  
High Excitation ◽  
Giant Resonances ◽  
Excitation Energies ◽  
The Many

GIANT RESONANCES IN HEAVY ION COLLISIONS

1984 ◽  
Vol 45 (C6) ◽  
pp. C6-269-C6-279
Author(s):  
A. Bonaccorso ◽  
M. Di Toro ◽  
U. Lombardo ◽  
G. Russo
Keyword(s):  
Heavy Ion Collisions ◽  
Heavy Ion ◽  
Giant Resonances ◽  
Ion Collisions

GIANT RESONANCES IN A POTENTIAL WELL : A SEMICLASSICAL DESCRIPTION

1987 ◽  
Vol 48 (C2) ◽  
pp. C2-19-C2-26
Author(s):  
X. VIÑAS ◽  
A. GUIRAO
Keyword(s):  
Potential Well ◽  
Giant Resonances

GIANT RESONANCES BUILT ON HIGHLY EXCITED STATES

1984 ◽  
Vol 45 (C4) ◽  
pp. C4-337-C4-350 ◽  
Author(s):  
K. A. Snover
Keyword(s):  
Excited States ◽  
Giant Resonances

ISOSPIN STRUCTURE OF GIANT RESONANCES

1984 ◽  
Vol 45 (C4) ◽  
pp. C4-319-C4-326 ◽  
Author(s):  
R. Leonardi
Keyword(s):  
Giant Resonances

EFFECTIVE INTERACTIONS AND THE EXCITATION OF GIANT RESONANCES

1984 ◽  
Vol 45 (C4) ◽  
pp. C4-231-C4-249
Author(s):  
W. G. Love ◽  
M. A. Franey
Keyword(s):  
Giant Resonances ◽  
Effective Interactions

Energy Levels and Electromagnetic Transition of 90-94mo Nuclei Using Ibm-1

2020 ◽  
pp. 149-152
Keyword(s):  
Experimental Data ◽  
Transition Probability ◽  
Energy Levels ◽  
Dynamical Symmetry ◽  
Interacting Boson Model ◽  
Excitation Energies ◽  
Electromagnetic Transition ◽  
Boson Model ◽  
Energy States ◽  
Good Agreement

The energy states for the J , b , ɤ bands and electromagnetic transitions B (E2) values for even – even molybdenum 90 – 94 Mo nuclei are calculated in the present work of "the interacting boson model (IBM-1)" . The parameters of the equation of IBM-1 Hamiltonian are determined which yield the best excellent suit the experimental energy states . The positive parity of energy states are obtained by using IBS1. for program for even 90 – 94 Mo isotopes with bosons number 5 , 4 and 5 respectively. The" reduced transition probability B(E2)" of these neuclei are calculated and compared with the experimental data . The ratio of the excitation energies of the 41+ to 21+ states ( R4/2) are also calculated . The calculated and experimental (R4/2) values showed that the 90 – 94 Mo nuclei have the vibrational dynamical symmetry U(5). Good agreement was found from comparison between the calculated energy states and electric quadruple probabilities B(E2) transition of the 90–94Mo isotopes with the experimental data .

Sign in / Sign up

Export Citation Format

Share Document