Results 81 to 90 of about 114,281 (199)

Probing the E2 properties of the scissors mode with real photons

open access: yesEPJ Web of Conferences, 2018
The E2/M1 multipole mixing ratio δ1→2 of the 1+ sc → 2+ 1 γ-ray transition of 156Gd and 164Dy has been measured using the linearly polarized photon beams of the HIγS facility.
Beck Tobias   +8 more
doaj   +1 more source

Atomic Kapitza-Dirac effect with quadrupole transitions

open access: yes, 2013
Interactions between atoms and light fields are usually described in the electric-dipole approximation. We show that electric-quadrupole terms are important in the Kapitza-Dirac arrangement for light gratings on resonance with a quadrupole atomic transition.
openaire   +2 more sources

Orbital moiré and quadrupolar triple-q physics in a triangular lattice

open access: yesPhysical Review Research
We numerically study orders of planer type (xy,x^{2}−y^{2}) quadrupoles on a triangular lattice with nearest-neighbor isotropic J and anisotropic K interactions. This type of quadrupole possesses unique single-ion anisotropy proportional to a third order
Kazumasa Hattori   +2 more
doaj   +1 more source

Improvements on the present theoretical understanding of octupole correlations

open access: yesEPJ Web of Conferences, 2014
Some intriguing results, obtained in a recent survey of octupole properties for all even-even nuclei, are reanalyzed in order to understand the origin of the strong disagreement with experimental data and/or the strange behaviours observed.
Robledo L.M.
doaj   +1 more source

Photoexcitation of 13C, 15 N, 17 O, 17 F and 39 K in the Framework of Particle-Core Coupling Model (PCM)

open access: yesمجلة علوم ذي قار, 2019
Photoexcitation of the collective low-lying states in 13C, 15N, 17O, 17F and 39K are studied in the framework of Particle-Core Coupling Model (PCM). According to PCM, the total Hamiltonian is diagonalized in the configuration mixing space of the basis ...
R. A. Radhi   +2 more
doaj   +4 more sources

Predominant electronic order parameter for structural chirality: Role of spinless electronic toroidal multipoles in Te and Se

open access: yesPhysical Review Research
We discuss predominant order parameters for structural chirality and demonstrate that time-reversal-even axial quadrupole plays a key role in stabilizing a chiral structure.
Rikuto Oiwa, Hiroaki Kusunose
doaj   +1 more source

Electric quadrupole transitions in 120Sn and 208Pb

open access: yesPhysics Letters B, 1973
Abstract Electric quadrupole transitions in 120 Sn and 208 Pb in the 0–30 MeV energy range have been studied using the finite Fermi-systems theory with the known phenomenological constants. One particle-one hole 2 + levels were considered. The results are compared with experiment.
openaire   +1 more source

Dynamical symmetry of (_42^102)Mo by utilizing (IBM-1)

open access: yesTikrit Journal of Pure Science
The structure of ( ) was explored theoretically with IBM-1 in this work. The  symmetry limit of the proposed nucleus was investigated. The considered nucleus was discovered to be deformed with O(6) dynamical symmetry area with gamma-ray softened nucleus.
berun nasralddin ghafoor   +1 more
doaj   +1 more source

Doppler-free selective reflection spectroscopy of electric-quadrupole transitions

open access: yesOptics Letters
Electric-dipole-forbidden transitions play an important role in quantum sensing, quantum information, and fundamental tests in physics. As such, the development of novel and sensitive spectroscopic methods is of major interest. Here, we present a Doppler-free selective reflection experiment on the 62S1/2–52D5/2 electric ...
Eng Aik Chan   +4 more
openaire   +4 more sources

The Study of Electric Quadrupole Transition (E2) in 56Ba and 62Sm Nuclei

open access: yesIbn Al-Haitham Journal for Pure and Applied Sciences, 2017
Transition strengths ↓ 2 . u . w 2) M(E for gamma transition from first excited 21 + states to the ground states that produced by pure electric quadrupole emission in even –even isotopes of 56Ba and 62Sm have been studied through half- lives time ...
F.A. Jassim, Z. A. Dakhil, Y.H. Jaber
doaj  

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