scholarly journals Valence nucleon populations in the Ni isotopes

2013 ◽  
Vol 87 (3) ◽  
Author(s):  
J. P. Schiffer ◽  
C. R. Hoffman ◽  
B. P. Kay ◽  
J. A. Clark ◽  
C. M. Deibel ◽  
...  
Keyword(s):  
Valence Nucleon

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.

Spin-orbit splittings in 13C and 13N with the nature of the Hoyle state in 12C

2006 ◽  
Vol 21 (31n33) ◽  
pp. 2373-2382 ◽  
Author(s):  
Taiichi YAMADA ◽  
Hisashi HORIUCHI ◽  
Peter SCHUCK
Keyword(s):  
Ground State ◽  
Positive Parity ◽  
Spin Orbit ◽  
Hoyle State ◽  
Valence Nucleon

The spin-orbit splittings of 13 C and 13 N corresponding to the ground state and second 0+ state (Hoyle state) in 12 C are investigated within a 12 C +N model. The agreement of the calculated results with experiments suggests that the [Formula: see text] and [Formula: see text] states around Ex = 9 ~ 10 MeV in 13 C and 13 N can be interpreted as the spin-orbit partner with the [Formula: see text] configuration. We also discuss the positive parity states (including [Formula: see text]) of 13 C and 13 N around the [Formula: see text] threshold, indicating to have the configuration of the Hoyle state in 12 C plus a valence nucleon in sd shell.

NATURAL ORBITALS AND ELECTRON ELASTIC MAGNETIC SCATTERING BY NUCLEI

1996 ◽  
Vol 05 (04) ◽  
pp. 717-724 ◽  
Author(s):  
D.N. KADREV ◽  
A.N. ANTONOV ◽  
M.V. STOITSOV ◽  
S.S. DIMITROVA
Keyword(s):  
Density Fluctuation ◽  
Form Factors ◽  
Wave Functions ◽  
Magnetic Scattering ◽  
Correlation Effects ◽  
Valence Nucleon ◽  
Nucleon System ◽  
Natural Orbitals ◽  
Transverse Form Factor ◽  
Fluctuation Model

Natural orbitals obtained within the coherent density fluctuation model and containing nucleon correlation effects are used to calculate characteristics of the A-nucleon system, such as the electron elastic magnetic scattering form factors. The calculations are performed for nuclei with a doubly-closed core and a valence nucleon in a stretched configuration (j=l+1/2), such as the 17 O and 41 Ca nuclei. It is shown that the calculations of the transverse form factor using natural orbitals improve the agreement with the experimental data in comparison with the case when shell-model single-particle wave functions are used.

scholarly journals Origin of21+excitation energy dependence on valence nucleon numbers

2007 ◽  
Vol 75 (5) ◽  
Author(s):  
Eunja Ha ◽  
Dongwoo Cha
Keyword(s):  
Excitation Energy ◽  
Energy Dependence ◽  
Valence Nucleon

Variation of rotational content inE(21+) with valence nucleon pairs and correlation withB(E2)↑ andE(0β+)

1997 ◽  
Vol 56 (6) ◽  
pp. 574-579 ◽  
Author(s):  
J B Gupta ◽  
A K Kavathekar
Keyword(s):  
Valence Nucleon

Effects of valence nucleon orbits and charge symmetry breaking interaction on the Nolen-Schiffer anomally of mirror nuclei

1992 ◽  
Vol 536 (1) ◽  
pp. 141-158 ◽  
Author(s):  
T. Suzuki ◽  
H. Sagawa ◽  
A. Arima
Keyword(s):  
Symmetry Breaking ◽  
Charge Symmetry Breaking ◽  
Valence Nucleon ◽  
Charge Symmetry

scholarly journals ELASTIC AND INELASTIC ALPHA TRANSFER IN THE 16O+12C SCATTERING

2021 ◽  
Vol 31 (4) ◽  
Author(s):  
Phuc Hoang Nguyen ◽  
Phuc Tri Toan Nguyen ◽  
Khoa Tien Dao
Keyword(s):  
Cross Section ◽  
Heavy Ion ◽  
Scattering Cross Section ◽  
Transition Strength ◽  
Valence Nucleon ◽  
The Core ◽  
Scattering Cross ◽  
Oscillatory Pattern ◽  
Reaction Channels ◽  
Coupled Reaction

The elastic scattering cross section measured at energies $E\lesssim 10$ MeV/nucleon for some light heavy-ion systems having two identical cores like \oc exhibits an enhanced oscillatory pattern at the backward angles. Such a pattern is known to be due to the transfer of the valence nucleon or cluster between the two identical cores. In particular, the elastic $\alpha$ transfer has been shown to originate directly from the core-exchange symmetry in the elastic \oc scattering. Given the strong transition strength of the $2^+_1$ state of $^{12}$C and its large overlap with the $^{16}$O ground state, it is natural to expect a similar $\alpha$ transfer process (or inelastic $\alpha$ transfer) to take place in the inelastic \oc scattering. The present work provides a realistic coupled channel description of the $\alpha$ transfer in the inelastic \oc scattering at low energies. Based on the results of the 4 coupled reaction-channels calculation, we show a significant contribution of the $\alpha$ transfer to the inelastic \oc scattering cross section at the backward angles. These results suggest that the explicit coupling to the $\alpha$ transfer channels is crucial in the studies of the elastic and inelastic scattering of a nucleus-nucleus system with the core-exchange symmetry.\Keywords{optical potential, coupled reaction channels, inelastic $\alpha$ transfer

GROUND STATE OCCUPATION PROBABILITIES OF VALENCE NUCLEON PAIRS IN EVEN-EVEN NUCLEI IN THE NILSSON MEAN-FIELD PLUS THE NEAREST-ORBIT PAIRING MODEL

2013 ◽  
Author(s):  
LINA BAO ◽  
HANG LI ◽  
BO LI ◽  
SHANSHAN PAN ◽  
XIAOXUE DING ◽  
...  
Keyword(s):  
Ground State ◽  
Mean Field ◽  
Valence Nucleon ◽  
Pairing Model

Particle Capture Reaction using Extended Core Plus Valence Nucleon Model

2011 ◽  
Vol 59 (2(3)) ◽  
pp. 907-910
Author(s):  
K. Yamamoto ◽  
H. Masui ◽  
M. Ohta ◽  
K. Kato
Keyword(s):  
Particle Capture ◽  
Valence Nucleon ◽  
Capture Reaction
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