scholarly journals Determination of Dipole Polarization Effects in 7Li and 11Li

2019 ◽  
Vol 3 ◽  
pp. 137
Author(s):  
L. D. Skouras ◽  
H. Muther ◽  
M. A. Nagarajan
Keyword(s):  
Ground State ◽  
Model Space ◽  
Energy Spectra ◽  
Electromagnetic Properties ◽  
Dipole Polarizability ◽  
Polarization Effects ◽  
Bonn Potential ◽  
State Configuration ◽  
Dipole Polarization

The structure of 6Li, 7Li and 11Li nuclei is investigated in a model space which includes all configurations with oscillator energy up to 3hω above the ground state configuration. The energy spectra and electromagnetic properties of the low-lying states are determined with various two-body interactions, which are derived from the Bonn potential. In addition the calculation determines the dipole polarizability of7 Li and 11Li caused from virtual E1 excitations to the positive parity states of these nuclei.

Effects of the isoscalar and isovector interaction on the ground-state magnetic moments of odd-mass 137–145Ce nuclei

2019 ◽  
Vol 97 (11) ◽  
pp. 1187-1190
Author(s):  
H. Yakut ◽  
E. Tabar ◽  
G. Hoşgör
Keyword(s):  
Ground State ◽  
Magnetic Moments ◽  
The Other ◽  
Spin Interaction ◽  
Nuclear Model ◽  
Isotopic Chain ◽  
Core Polarization ◽  
Polarization Effects ◽  
The Core

A systematic study of the magnetic properties of deformed odd-neutron 137–145Ce isotopes using the microscopic quasiparticle phonon nuclear model (QPNM) has been presented. The QPNM includes residual spin–spin interaction in both isoscalar and isovector channels. The analysis shows that in the isoscalar channel contributions to the magnetic moment coming from the neutron and proton systems practically cancel out each other. On the other hand, in the isovector channel, the coherent contribution coming from the quasiparticle–phonon interactions leads to a spin polarization (core polarization), which is important for determination of the quenched spin gyromagnetic factors (gs). The quenched spin gyromagnetic factors so called [Formula: see text] have been found to range from [Formula: see text] to [Formula: see text] in the odd-mass 137–145Ce isotopic chain, which is similar to its phenomenological value ([Formula: see text] between [Formula: see text] and [Formula: see text]). By taking into consideration the core polarization effects, the available experimental data are satisfactorily reproduced with an accuracy of 0.01μN–0.1μN.

scholarly journals Determination of dipole polarization effects in 7Li and 11Li

1993 ◽  
Vol 561 (2) ◽  
pp. 157-180 ◽  
Author(s):  
L.D. Skouras ◽  
H. Müther ◽  
M.A. Nagarajan
Keyword(s):  
Polarization Effects ◽  
Dipole Polarization

EPR Spectra of [Cr(CO)2L(η-C6Me6)]+(L = PEt3, PPh3, P(OEt)3, P(OPh)3):  Analysis of Line Widths and Determination of Ground State Configuration from Interpretation of31P Couplings

1997 ◽  
Vol 16 (20) ◽  
pp. 4369-4376 ◽  
Author(s):  
Michael P. Castellani ◽  
Neil G. Connelly ◽  
Robert D. Pike ◽  
Anne L. Rieger ◽  
Philip H. Rieger
Keyword(s):  
Ground State ◽  
Epr Spectra ◽  
Ground State Configuration ◽  
Line Widths ◽  
State Configuration

SELF-CONSISTENT DESCRIPTION OF EXOTIC STRUCTURE AND DECAY NEAR THE N = Z LINE

2008 ◽  
Vol 17 (supp01) ◽  
pp. 219-232 ◽  
Author(s):  
ALEXANDRINA PETROVICI
Keyword(s):  
Ground State ◽  
Model Space ◽  
Mass Region ◽  
Electromagnetic Properties ◽  
Β Decay ◽  
Effective Interactions ◽  
Rp Process ◽  
Significant Strength ◽  
Isobaric Analog ◽  
Isospin Symmetry Breaking

We focus on exotic structure and dynamics of N ≃ Z nuclei in the A ~ 80 mass region described within the complex Excited Vampir variational approach. We report on the effect of isospin-symmetry breaking on the superallowed Fermi β decay of the ground state of 82 Nb to 82 Zr . Results on the analog as well as non-analog β decay branches are self-consistently obtained. The 82 Nb →82 Zr β decay to the first two excited 0+ states with significant strength is predicted to coexist with the superallowed decay. The structure and electromagnetic properties of the low- and high-spin isobaric analog states in 82 Nb and 82 Zr are presented and compared with the available experimental data. The influence of shape coexistence and mixing on the Gamow–Teller strength distributions for the β+ decay of the ground state as well as the lowest-excited states in 72 Kr to the 1+ states in the beta window in 72 Br are self-consistently described using a rather large model space and realistic effective interactions. Predictions concerning the β decay half-life of the first excited 0+ state of 72 Kr relevant for the rp-process are presented.

scholarly journals Observables in inhomogeneous ground states at large global charge

2021 ◽  
Vol 2021 (8) ◽  
Author(s):  
Simeon Hellerman ◽  
Nozomu Kobayashi ◽  
Shunsuke Maeda ◽  
Masataka Watanabe
Keyword(s):  
Ground State Energy ◽  
Ground State ◽  
State Energy ◽  
Point Function ◽  
Ground State Configuration ◽  
Charge Densities ◽  
Direct Extension ◽  
Fixed Set ◽  
State Configuration ◽  
Large Charge

Abstract As a sequel to previous work, we extend the study of the ground state configuration of the D = 3, Wilson-Fisher conformal O(4) model. In this work, we prove that for generic ratios of two charge densities, ρ1/ρ2, the ground-state configuration is inhomogeneous and that the inhomogeneity expresses itself towards longer spatial periods. This is the direct extension of the similar statements we previously made for ρ1/ρ2 ≪ 1. We also compute, at fixed set of charges, ρ1, ρ2, the ground state energy and the two-point function(s) associated with this inhomogeneous configuration on the torus. The ground state energy was found to scale (ρ1 + ρ2)3/2, as dictated by dimensional analysis and similarly to the case of the O(2) model. Unlike the case of the O(2) model, the ground also strongly violates cluster decomposition in the large-volume, fixed-density limit, with a two-point function that is negative definite at antipodal points of the torus at leading order at large charge.

Simple determination of Na2 scattering lengths using observed bound levels at the ground state asymptote

1999 ◽  
Vol 6 (2) ◽  
pp. 211-220 ◽  
Author(s):  
A. Crubellier ◽  
O. Dulieu ◽  
F. Masnou-Seeuws ◽  
M. Elbs ◽  
H. Knöckel ◽  
...  
Keyword(s):  
Ground State ◽  
Scattering Lengths
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