Relation between electric quadrupole and magnetic dipole nuclear moments

1987 ◽  
Vol 34 (1-4) ◽  
pp. 87-89
Author(s):  
M. P. Avotina ◽  
T. I. Kracíková
Keyword(s):  
Magnetic Dipole ◽  
Electric Quadrupole ◽  
Nuclear Moments

Magnetic dipole and electric quadrupole rotational structures and chirality inRh105

2004 ◽  
Vol 69 (2) ◽  
Author(s):  
J. A. Alcántara-Núñez ◽  
J. R. B. Oliveira ◽  
E. W. Cybulska ◽  
N. H. Medina ◽  
M. N. Rao ◽  
...  
Keyword(s):  
Magnetic Dipole ◽  
Electric Quadrupole

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.

Electromagnetic radiation

2018 ◽  
Author(s):  
J. Pierrus
Keyword(s):  
Electromagnetic Radiation ◽  
Magnetic Dipole ◽  
Antenna Arrays ◽  
Electric Dipole ◽  
Free Electron ◽  
Vector Potential ◽  
Electric Quadrupole ◽  
Multipole Expansion ◽  
Multipole Moments

This chapter begins by expressing the multipole expansion of the dynamic vector potential A ( r, t) in terms of electric and magnetic multipole moments. Differentiation of A ( r, t) leads directly to the fields E ( r, t) and B ( r, t), which have a component transporting energy away from the sources to infinity. This component is called electromagnetic radiation and it arises only when electric charges experience an acceleration. A range of questions deal with the various types of radiation, including electric dipole and magnetic dipole–electric quadrupole. Larmor’s formula is applied in both its non-relativistic and relativistic forms. Also considered are some applications involving antennas, antenna arrays and the scattering of radiation by a free electron.

Heavy-ion storage ring measurement of forbidden transition rates between ground-configuration levels in Si6+ and Si8+ ions

1998 ◽  
Vol 76 (11) ◽  
pp. 899-906 ◽  
Author(s):  
E Träbert ◽  
A Wolf ◽  
E H Pinnington ◽  
J Linkemann ◽  
E J Knystautas ◽  
...  
Keyword(s):  
Magnetic Dipole ◽  
Storage Ring ◽  
Theoretical Data ◽  
Electric Quadrupole ◽  
Heavy Ion ◽  
Transition Rates ◽  
Natural Level ◽  
Forbidden Transition ◽  
Ion Storage ◽  
34.50 Fa

The decay by magnetic dipole and electric quadrupole (M1 and E2) transitions of the 2s22p2 1D2 level in the ground complex of the C-like ion Si8+ and the 2s22p4 1D2 level in the O-like ion Si6+ have been optically observed with ions circulating in a storage ring. The measured natural level lifetimes of (38.3 ± 0.3) ms for Si8+ and (636 ± 0.7) ms for Si6+ corroborate theoretical data for such forbidden decays in multicharged ions of astrophysical interest. PACS Nos.: 32.70.Cs, 32.30.Jc, 34.50.Fa

scholarly journals The full infrared spectrum of molecular hydrogen

2019 ◽  
Vol 630 ◽  
pp. A58 ◽  
Author(s):  
E. Roueff ◽  
H. Abgrall ◽  
P. Czachorowski ◽  
K. Pachucki ◽  
M. Puchalski ◽  
...  
Keyword(s):  
Infrared Spectrum ◽  
Magnetic Dipole ◽  
Molecular Hydrogen ◽  
Radiative Lifetime ◽  
Electric Quadrupole ◽  
Molecular State ◽  
High Spectral Resolution ◽  
Echelle Spectrograph ◽  
Very Large Telescope ◽  
Magnetic Dipole Transitions

Context. The high spectral resolution R ∼ 45 000 provided by IGRINS (Immersion Grating INfrared Spectrometer) at MacDonald Observatory and R ∼ 100 000 achieved by CRIRES (CRyogenic high-resolution InfraRed Echelle Spectrograph) at VLT (Very Large Telescope) challenges the present knowledge of infrared spectra. Aims. We aim to predict the full infrared spectrum of molecular hydrogen at a comparable accuracy. Methods. We take advantage of the recent theoretical ab initio studies on molecular hydrogen to compute both the electric quadrupole and magnetic dipole transitions taking place within the ground electronic molecular state of hydrogen. Results. We computed the full infrared spectrum of molecular hydrogen at an unprecedented accuracy and derive for the first time the emission probabilities including both electric quadrupole (ΔJ = 0, ±2) and magnetic dipole transitions (ΔJ = 0) as well as the total radiative lifetime of each rovibrational state. Inclusion of magnetic dipole transitions increases the emission probabilities by factors of a few for highly excited rotational levels, which occur in the 3–20 μ range.

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