Magnetic dipole moments, electric quadrupole moments, and electron scattering form factors of neutron-rich sd−pf cross-shell nuclei

2018 ◽  
Vol 97 (6) ◽  
Author(s):  
R. A. Radhi ◽  
Ali A. Alzubadi ◽  
A. H. Ali
Keyword(s):  
Magnetic Dipole ◽  
Electron Scattering ◽  
Dipole Moments ◽  
Form Factors ◽  
Electric Quadrupole ◽  
Quadrupole Moments

scholarly journals The Nuclear Structure for Exotic Neutron-Rich of 42, 43, 45,47K Nuclei

2016 ◽  
Vol 13 (1) ◽  
pp. 146-154
Author(s):  
Baghdad Science Journal
Keyword(s):  
Magnetic Dipole ◽  
Electron Scattering ◽  
Dipole Moments ◽  
Exotic Nucleus ◽  
Form Factors ◽  
Model Space ◽  
Density Distributions ◽  
Plane Wave Born Approximation ◽  
Magnetic Electron ◽  
Good Agreement

In this paper the proton, neutron and matter density distributions and the corresponding root mean square (rms) radii of the ground states and the elastic magnetic electron scattering form factors and the magnetic dipole moments have been calculated for exotic nucleus of potassium isotopes K (A= 42, 43, 45, 47) based on the shell model using effective W0 interaction. The single-particle wave functions of harmonic-oscillator (HO) potential are used with the oscillator parameters b. According to this interaction, the valence nucleons are asummed to move in the d3f7 model space. The elastic magnetic electron scattering of the exotic nuclei 42K (J?T= 2- 2), 43K(J?T=3/2+ 5/2), 45K (J?T= 3/2+ 7/2) and 47K (J?T= 1/2+ 9/2) investigated through Plane Wave Born Approximation (PWBA). The inclusion of core polarization effect through the effective g-factors is adequate to obtain a good agreement between the predicted and the measured magnetic dipole moments.

The magnetic dipole and electric quadrupole moments of dysprosium 161 and 163

1958 ◽  
Vol 245 (1240) ◽  
pp. 118-127 ◽  
Keyword(s):  
Magnetic Dipole ◽  
Ground State ◽  
Axial Symmetry ◽  
Dipole Moments ◽  
Electric Quadrupole ◽  
Magnesium Nitrate ◽  
Quadrupole Moments ◽  
Nuclear Spins ◽  
Paramagnetic Resonance ◽  
Electronic Ground

Paramagnetic resonance has been observed at 4.2 °K and a wavelength of 3.1 cm in magnetically dilute crystals of the acetate and double magnesium nitrate of dysprosium. Values for the nuclear spins and nuclear magnetic dipole moments of the odd isotopes 161 Dy and 163 Dy have been deduced from the spectrum in dysprosium acetate, although the spectrum does not have axial symmetry and cannot be analyzed in detail. More reliable values for these moments have been obtained from the spectrum of dysprosium double nitrate, which has axial symmetry. It has also been possible to make an approximate calculation of the electronic ground state of dysprosium ions in this salt and estimate the nuclear electric quadrupole moments. The values of the moments are: 161 µ = — 0.37 ± 0.04 n.m .; 163 µ = + 0.51 ± 0.06 n.m .; and, in units of 10 -24 cm 2 , 161 Q = + 1.1 ± 0.4; 163 Q = + 1.3 ± 0.4. For each isotope, only the relative signs of the two moments were determined experimentally; the signs quoted above are suggested as the most probable ones.

Forbidden transitions in molecular vibrational-rotational spectroscopy

1989 ◽  
Vol 54 (10) ◽  
pp. 2555-2630 ◽  
Author(s):  
Dušan Papoušek
Keyword(s):  
Magnetic Dipole ◽  
Electric Dipole ◽  
Dipole Moments ◽  
Physical Nature ◽  
Electric Quadrupole ◽  
Rotational Spectroscopy ◽  
Quadrupole Moments ◽  
Electric Dipole Moments ◽  
Selection Rules ◽  
Rotational States

A review is given of the forbidden ( more precisely: perturbation allowed) transistions between molecular vibrational-rotational states including transistions which are induced by the electric dipole and quadrupole moments and the magnetic dipole moment. The basic theory of these transistions is outlined starting with the overall symmetry selection rules, followed by the discussion of the spin statistics isomers, approximate selection rules for the usual vibrational-rotational transistions, and forbidden transistions induced by the electric quadrupole and magnetic dipole moments. Forbidden transistions due to the vibrationally and rotationally induced electric dipole moments are the discussed in detail for symmetric top and spherical top molecules with the emphasis on the physical nature of the various phenomena leading to these transistions. A summary is also given of the most important experimental work on the forbidden transistions in diatomic molecules and polar as well as nonpolar polyatomics.

ELECTROWEAK BOSON SELF-COUPLINGS AND THE SCALE OF COMPOSITENESS

1988 ◽  
Vol 03 (01) ◽  
pp. 225-242 ◽  
Author(s):  
J.A. GRIFOLS ◽  
S. PERIS ◽  
J. SOLÅ
Keyword(s):  
Magnetic Dipole ◽  
Electric Quadrupole ◽  
Quadrupole Moments ◽  
Weak Boson ◽  
Experimental Rate ◽  
Experimental Constraint ◽  
Electroweak Boson

The experimental constraint on [Formula: see text] and the experimental rate of the process KL→μμ are used to bound hypothetical nonstandard self-interactions of the electroweak bosons. In particular, we give bounds on anomalous magnetic dipole and electric quadrupole moments of the charged weak boson.

scholarly journals Blast from the past: Constraints on the dark sector from the BEBC WA66 beam dump experiment

2021 ◽  
Vol 10 (2) ◽  
Author(s):  
Giacomo Marocco ◽  
Subir Sarkar
Keyword(s):  
Proton Beam ◽  
Magnetic Dipole ◽  
Electron Scattering ◽  
Dipole Moments ◽  
Bubble Chamber ◽  
Dark Sector ◽  
Beam Dump ◽  
The Past ◽  
Scattering Events

We derive limits on millicharged dark states, as well as particles with electric or magnetic dipole moments, from the number of observed forward electron scattering events at the Big European Bubble Chamber in the 1982 CERN-WA-066 beam dump experiment. The dark states are produced by the 400~GeV proton beam primarily through the decays of mesons produced in the beam dump, and the lack of excess events places bounds extending up to GeV masses. These improve on bounds from all other experiments, in particular CHARM~II.

Magnetic dipole and electric quadrupole moments of the neutron-deficient bismuth isotopes

1996 ◽  
Vol 598 (1) ◽  
pp. 61-81 ◽  
Author(s):  
P. Campbell ◽  
J.A. Behr ◽  
J. Billowes ◽  
G. Gwinner ◽  
G.D. Sprouse ◽  
...  
Keyword(s):  
Magnetic Dipole ◽  
Electric Quadrupole ◽  
Quadrupole Moments

Magnetic Dipole and Electric Quadrupole Moments of the First2+State ofSm154

1969 ◽  
Vol 186 (4) ◽  
pp. 1280-1284 ◽  
Author(s):  
R. M. Wheeler ◽  
U. Atzmony ◽  
J. C. Walker
Keyword(s):  
Magnetic Dipole ◽  
Electric Quadrupole ◽  
Quadrupole Moments

The Mössbauer Effect and Some Applications in Materials Research

1980 ◽  
Vol 3 ◽  
Author(s):  
G. K. Shenoy
Keyword(s):  
Surface Properties ◽  
Phase Analysis ◽  
Magnetic Dipole ◽  
Mössbauer Effect ◽  
Hyperfine Interactions ◽  
Electric Quadrupole ◽  
Quadrupole Moments ◽  
Mossbauer Effect ◽  
Defect Interaction ◽  
Materials Research

ABSTRACTA brief introduction to the Mössbauer effect is presented. The hyperfine interactions associated with the electric monopole, magnetic dipole and electric quadrupole moments of the nuclear states involved in the Mössbauer transition are described. Their use in materials research is illustrated through examples dealing with phase analysis, binary solubility, defect interaction and surface properties.

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