Lifetimes of ground-band states inNd150

1978 ◽  
Vol 17 (2) ◽  
pp. 634-638 ◽  
Author(s):  
S. W. Yates ◽  
Noah R. Johnson ◽  
L. L. Riedinger ◽  
A. C. Kahler
Keyword(s):  
Ground Band

Simple formula for the ground band spectrum of even-mass rotational nuclei

1982 ◽  
Vol 25 (5) ◽  
pp. 2837-2840 ◽  
Author(s):  
A. Partensky ◽  
C. Quesne
Keyword(s):  
Simple Formula ◽  
Band Spectrum ◽  
Ground Band

Moments of inertia and B(E2;01+→21+)s in the NpNn scheme

2015 ◽  
Vol 93 (7) ◽  
pp. 711-715
Author(s):  
Rajesh Kumar ◽  
S. Sharma
Keyword(s):  
Nuclear Structure ◽  
Strong Dependence ◽  
Moment Of Inertia ◽  
Nucleon Pair ◽  
Valence Nucleon ◽  
Moments Of Inertia ◽  
Ground Band ◽  
Neutron Interaction ◽  
Medium Mass

We examine the collective nuclear structure of light and medium mass (Z = 50–82, N = 82–126) even–even nuclei using valence nucleon pair product (NpNn). We discuss the role of proton–neutron interaction in light mass nuclei and illustrate the variation of observables of collectivity and deformation (i.e., ground band moment of inertia) and B(E2) values with N and NpNn). The plot of these observables against NpNn vividly displays the formation of isotonic multiplets in quadrant I, strong dependence on NpNn in quadrant II and weak constancy with Z in quadrant III is illustrated.

COLLECTIVE BANDS IN 68Se

2002 ◽  
Vol 11 (06) ◽  
pp. 531-538 ◽  
Author(s):  
K. C. TRIPATHY ◽  
R. SAHU
Keyword(s):  
Configuration Space ◽  
Single Particle ◽  
Fock States ◽  
Hartree Fock ◽  
Ground Band ◽  
Prolate Shape ◽  
Particle Orbits ◽  
Excited Band ◽  
Inert Core ◽  
Configuration Mixing

The collective bands of the N = Z nucleus 68 Se are studied within our deformed configuration mixing shell model based on Hartree–Fock states. The configuration space consists of the spherical single particle orbits 1p3/2, 0f5/2, 1p1/2 and 0g9/2 with 56 Ni as the inert core. A modified Kuo interaction for this basis space has been used in our calculation. The calculated ground band, K = 2+ excited band and the K = 5- excited band agree reasonably well with the experiment. Our calculation shows that the ground band is essentially of oblate shape and the excited K = 2+ band is of prolate shape. This is in agreement with the conclusions drawn from the recent experimental analysis.

Coulomb excitation of ground band rotational states inBk249

1982 ◽  
Vol 25 (3) ◽  
pp. 1637-1640 ◽  
Author(s):  
C. E. Bemis ◽  
F. K. McGowan ◽  
J. L. C. Ford ◽  
W. T. Milner ◽  
R. L. Robinson ◽  
...  
Keyword(s):  
Coulomb Excitation ◽  
Rotational States ◽  
Ground Band

Multipole Mixing Ratios of Gamma Band to Ground Band Transitions in 102,104,106,108Mo, 108,110,112Ru, and 112,114,116Pd

2017 ◽  
Author(s):  
J. M. Eldridge ◽  
B. Fenker ◽  
C. Goodin ◽  
C. J. Zachary ◽  
J. H. Hamilton ◽  
...  
Keyword(s):  
Gamma Band ◽  
Mixing Ratios ◽  
Ground Band

scholarly journals Supersolidity of the $\alpha$ cluster structure in the nucleus $^{12}$C

2020 ◽  
Vol 2020 (4) ◽  
Author(s):  
S Ohkubo ◽  
J Takahashi ◽  
Y Yamanaka
Keyword(s):  
Cluster Model ◽  
Cluster Structure ◽  
Einstein Condensate ◽  
Effective Field ◽  
Ground Band ◽  
Model Based ◽  
Bose Einstein Condensate ◽  
Dilute Gas ◽  
Alpha Cluster ◽  
Bose Einstein

Abstract For more than half a century, the structure of $^{12}$C, such as the ground band, has been understood to be well described by the three $\alpha$ cluster model based on a geometrical crystalline picture. On the contrary, recently it has been claimed that the ground state of $^{12}$C is also well described by a nonlocalized cluster model without any of the geometrical configurations originally proposed to explain the dilute gas-like Hoyle state, which is now considered to be a Bose–Einstein condensate of $\alpha$ clusters. The challenging unsolved problem is how we can reconcile the two exclusive $\alpha$ cluster pictures of $^{12}$C, crystalline vs. nonlocalized structure. We show that the crystalline cluster picture and the nonlocalized cluster picture can be reconciled by noticing that they are a manifestation of supersolidity with properties of both crystallinity and superfluidity. This is achieved through a superfluid $\alpha$ cluster model based on effective field theory, which treats the Nambu–Goldstone zero mode rigorously. For several decades, scientists have been searching for a supersolid in nature. Nuclear $\alpha$ cluster structure is considered to be the first confirmed example of a stable supersolid.

scholarly journals A Note on the Quasi-Ground Band

1973 ◽  
Vol 49 (3) ◽  
pp. 1046-1047
Author(s):  
Akira Hasegawa ◽  
Hiromi Tanaka
Keyword(s):  
Ground Band

EIKONAL SCATTERING IN THE sdg INTERACTING BOSON MODEL: ANALYTICAL RESULTS IN THE SUsdg(3) LIMIT AND THEIR GENERALIZATIONS

1993 ◽  
Vol 08 (11) ◽  
pp. 987-996 ◽  
Author(s):  
V. K. B. KOTA
Keyword(s):  
Target Nucleus ◽  
Scattering Amplitude ◽  
Eikonal Approximation ◽  
Interacting Boson Model ◽  
Angular Momentum Projection ◽  
Rotational Bands ◽  
Ground Band ◽  
Energy Proton ◽  
Nucleus Scattering ◽  
Boson Model

General expression for the representation matrix elements in the SU sdg(3) limit of the sdg interacting boson model (sdgIBM) is derived that determine the scattering amplitude in the eikonal approximation for medium energy proton-nucleus scattering when the target nucleus is deformed and it is described by the SU sdg(3) limit. The SU sdg(3) result is generalized to two important situations: (i) when the target nucleus ground band states are described as states arising out of angular momentum projection from a general single Kπ = 0+ intrinsic state in sdg space; (ii) for rotational bands built on one-phonon excitations in sdgIBM.

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