scholarly journals Finite valence nucleon number and rotation-vibration interactions

2016 ◽  
Vol 94 (6) ◽  
Author(s):  
R. F. Casten ◽  
J. Jolie ◽  
R. B. Cakirli ◽  
A. Couture
Keyword(s):  
Valence Nucleon ◽  
Nucleon Number

The effect of the valence nucleons off the shells with Z = 82 and N = 126 on rotational characteristics of actinide nuclei

Open Physics ◽  
2011 ◽  
Vol 9 (1) ◽  
Author(s):  
Maria Kaczmarczyk
Keyword(s):  
Ground State ◽  
Rotational Level ◽  
Nuclear Interaction ◽  
The Other ◽  
Current Paper ◽  
Current Work ◽  
Effective Number ◽  
Valence Nucleon ◽  
Moments Of Inertia ◽  
Nucleon Number

AbstractOur earlier results obtained for moments of inertia (M) in the case of 54 rotational level bands built on the ground state of actinide nuclei are taken for further analysis. In the current paper, resulting dynamic rotational characteristics, such as a 0, a 1, s 0 and the R 4/2 parameter, are studied from the standpoint of their dependence on the valence nucleon number product N p N n and on the variable P = N p N n/(N p + N n). New features of the nuclei deformation phenomenon in the actinide area arise when their dynamic rotational characteristics, mentioned above, are plotted in such a way as shown in the current work. The method of analysis presented here makes it possible to reveal nuclei with valence nucleon numbers for which the nuclear interactions are notable and those in which they are inconspicuous. E. g. when N p N n < 200 and P < 6 the strength of nuclear interaction gradually decreases with the increase of these variables. The strength of the nuclear interaction does not change significantly for N p N n > 200 and P > 6 — the rotational characteristics stabilise. Moreover, it is possible to establish the P variable as representing the effective number of interactions of each valence nucleon with those of the other type.

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.

The average nucleon number density in intrinsic states of the FDSM SU(3)

1993 ◽  
Vol 563 (3) ◽  
pp. 434-444
Author(s):  
Wu Lian-Ao ◽  
Mike W. Guidry ◽  
Wu Cheng-Li ◽  
Da Hsuan Feng
Keyword(s):  
Number Density ◽  
Nucleon Number

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 Nucleon number dependence of the onset of anomalous J/ψ suppression and the dynamics of nuclear collisions

2001 ◽  
Vol 500 (1-2) ◽  
pp. 59-65 ◽  
Author(s):  
Anna Nogová ◽  
Neva Pišútová ◽  
Ján Pišút
Keyword(s):  
Nuclear Collisions ◽  
Nucleon Number

Effective nucleon number in high-energy reactions

1969 ◽  
Vol 63 (1) ◽  
pp. 343-353 ◽  
Author(s):  
D. F. Jackson
Keyword(s):  
High Energy ◽  
Nucleon Number
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