A weak-coupling model for the even Zn isotopes

1977 ◽  
Vol 55 (10) ◽  
pp. 909-915 ◽  
Author(s):  
T. Vo-Van ◽  
S. S. M. Wong
Keyword(s):  
Proton Transfer ◽  
Weak Coupling ◽  
Level Structure ◽  
Coupling Model ◽  
Transition Rates ◽  
Vibrational States ◽  
Model Calculations ◽  
Zinc Isotopes ◽  
Protons And Neutrons ◽  
Zn Isotopes

The low-lying structures of even zinc isotopes are studied as the weak coupling of vibrational states of protons and neutrons obtained from shell-model calculations. In spite of its simplicity, the model is capable of describing the known level structure and E2 transition rates as well as producing reliable two-proton transfer amplitudes. Extensions to include other even–even nuclei such as Ge, Se, and Kr are also discussed.

Low-lying Negative-parity Levels of 17N and 18N

1984 ◽  
Vol 37 (1) ◽  
pp. 17 ◽  
Author(s):  
FC Barker
Keyword(s):  
Shell Model ◽  
Weak Coupling ◽  
Coupling Model ◽  
Negative Parity ◽  
Positive Parity ◽  
Model Calculations

On the basis of a weak-coupling model, adjustments are made to the interactions used in the full shell model calculations of Millener in order to fit the experimental energies of the low-lying negativeparity levels of 16N and of the low-lying positive-parity levels of 180 and 190 . The predicted energies of the low-lying negative-parity levels of 17N then agree better with experiment, while those for 18N lead to suggested spin assignments for the observed levels.

Resonances in the 15N(α,γ)19F Reaction Between Eα = 1.68 and 2.72 MeV

1972 ◽  
Vol 50 (20) ◽  
pp. 2428-2443 ◽  
Author(s):  
D. W. O. Rogers ◽  
R. P. Beukens ◽  
W. T. Diamond
Keyword(s):  
Shell Model ◽  
Weak Coupling ◽  
Coupling Model ◽  
Branching Ratios ◽  
Negative Parity ◽  
Angular Distributions ◽  
Model Calculations ◽  
Spin Parity ◽  
The Third

Using the 15N(α,γ)19F reaction, the properties of 6 levels between 5.3 and 6.2 MeV in 19F have been studied. In conjunction with previously reported restrictions on spins for these levels, measurements of branching ratios, radiative widths, and angular distributions have been used to make the following spin–parity assignments; 5618 keV, 3/2−; 5938 keV, 1/2+; 6070 keV, 7/2+; 6088 keV, 3/2−; 6160 keV, 7/2−. The properties of these levels and that at 5336 keV have been compared in detail to the various shell model calculations done for 19F. The properties of the third Jπ = 7/2+ level at 6.07 MeV can be used to clear up some of the confusion caused by the first two Jπ = 7/2+ levels in 19F and the properties of the Jπ = 3/2− levels confirm the fact that the weak coupling model does not explain the negative parity states outside the K = 1/2− band.

Resonance (n, γ) measurements and weak-coupling model calculations of levels inSn119,Sn117, andSn115

1978 ◽  
Vol 18 (3) ◽  
pp. 1158-1177 ◽  
Author(s):  
S. Raman ◽  
R. F. Carlton ◽  
G. G. Slaughter ◽  
M. R. Meder
Keyword(s):  
Weak Coupling ◽  
Coupling Model ◽  
Model Calculations

Shell model calculations for odd-mass A = 51–55 nuclei using a weak-coupling basis

1976 ◽  
Vol 54 (16) ◽  
pp. 1683-1691 ◽  
Author(s):  
H. G. Benson ◽  
I. P. Johnstone
Keyword(s):  
Shell Model ◽  
Weak Coupling ◽  
Coupling Model ◽  
Excitation Energies ◽  
Model Calculations ◽  
Neutron Hole

The excitation energies of states belonging to various n1-particle. n2-hole configurations relative to a 56,Ni core are calculated, using, when necessary, truncation based on a weak-coupling model. The calculations account for the occurrence of low-lying five-hole states in 53Mn, reproduce the bands of neutron–hole states observed in 53Cr and 53Fe, and predict the existence of low-lying four-hole states in 55Co.

Carrier tunneling in nanocrystalline silicon–silicon dioxide superlattices: A weak coupling model

2004 ◽  
Vol 69 (23) ◽  
Author(s):  
B. V. Kamenev ◽  
G. F. Grom ◽  
D. J. Lockwood ◽  
J. P. McCafrey ◽  
B. Laikhtman ◽  
...  
Keyword(s):  
Silicon Dioxide ◽  
Weak Coupling ◽  
Coupling Model ◽  
Nanocrystalline Silicon ◽  
Carrier Tunneling ◽  
Silicon Silicon

scholarly journals Predictions for boson-jet observables and fragmentation function ratios from a hybrid strong/weak coupling model for jet quenching

2016 ◽  
Vol 2016 (3) ◽  
Author(s):  
Jorge Casalderrey-Solana ◽  
Doga Can Gulhan ◽  
José Guilherme Milhano ◽  
Daniel Pablos ◽  
Krishna Rajagopal
Keyword(s):  
Fragmentation Function ◽  
Weak Coupling ◽  
Coupling Model ◽  
Jet Quenching ◽  
Jet Observables

Application of the unified weak-coupling model to neutron scattering byC12

1977 ◽  
Vol 16 (1) ◽  
pp. 76-79 ◽  
Author(s):  
J. E. Purcell ◽  
M. R. Meder
Keyword(s):  
Neutron Scattering ◽  
Weak Coupling ◽  
Coupling Model

Weak-Coupling Model forPb212andPb204

1973 ◽  
Vol 8 (6) ◽  
pp. 2379-2389 ◽  
Author(s):  
C. M. Ko ◽  
T. T. S. Kuo ◽  
J. B. McGrory
Keyword(s):  
Weak Coupling ◽  
Coupling Model

scholarly journals A Search for an Excited Kp=0+ Rotational Band in 24Mg

1976 ◽  
Vol 29 (3) ◽  
pp. 139 ◽  
Author(s):  
D Branford ◽  
LE Carlson ◽  
FCP Huang ◽  
N Gardner ◽  
TR Ophel ◽  
...  
Keyword(s):  
Shell Model ◽  
Quadrupole Moment ◽  
Rotational Band ◽  
Doppler Shift ◽  
Transition Rates ◽  
Model Calculations ◽  
Doppler Shift Attenuation ◽  
Doppler Shift Attenuation Method ◽  
Absolute Transition ◽  
Good Agreement

A search is described for an excited Kn = 0+ rotational band based on the 6� 44 MeV level of 24Mg. Mean nuclear lifetimes have been measured by the Doppler shift attenuation method using the 12C('60,a)24Mg reaction and the results are 't'm = 66�29, 28�7 and 13�3 fs for levels at 6'44, 8�65 and 10� 58 MeV respectively. The absolute transition rates found for the y decays from the 6�44 and 8�65 MeV levels are in good agreement with the results of shell model calculations if it is assumed that these levels are the 0+ and 2 + members respectively of the excited Kn = 0+ rotational band. Based on this assumption, a result Qoo = 0�48 �0�08b is obtained for the intraband quadrupole moment. From a study of the 23Na(p, y) reaction, it is established that the J = 4 levels at 12� 63 and 13�05 MeV do not decay by enhanced E2 transitions to the 8� 65 MeV level. This suggests that neither of these levels is the 4 + member of the excited Kn = 0+ rotational band. An assignment of J" = 4+ is made to one member of the doublet at 10�58 MeV.

Erratum: Level structure of94,95,96Tcat high spins and shell-model calculations [Phys. Rev. C61, 024302 (2000)]

2000 ◽  
Vol 62 (2) ◽  
Author(s):  
S. S. Ghugre ◽  
B. Kharraja ◽  
U. Garg ◽  
R. V. F. Janssens ◽  
M. P. Carpenter ◽  
...  
Keyword(s):  
Shell Model ◽  
Level Structure ◽  
Model Calculations
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