Results 31 to 40 of about 114,281 (199)

Description of superdeformed nuclei in the interacting boson model

, 1995
The interacting boson model is extended to describe the spectroscopy of superdeformed bands. Microscopic structure of the model in the second minimum is discussed and superdeformed bosons are introduced as the new building blocks.
C. Gustafson, D.R. Bes, F. Iachello, F. Iachello, J. Dudek, J.L. Egido, J.R. Hughes, M. Honma, M. Honma, M.A. Bentley, M.A. Riley, P. Willsau, P.J. Nolan, R.F. Casten, R.V.F. Janssens, S. Aberg, S. Kuyucak, S. Kuyucak, S. Kuyucak, S. Kuyucak, S. Lunardi, S.G. Nilsson, T. Otsuka, T. Otsuka, T. Otsuka, T. Otsuka, W. Nazarewicz, W. Satula, Y.R. Shimizu   +28 more
core   +1 more source

A Note on the Toda Criterion for Interacting Dipole-Quadrupole Vibrations [PDF]

, 1997
The Toda criterion of the Gaussian curvature is applied to calculate analytically the transition energy from regular to chaotic motion in a schematic model describing the interaction between collective dipole and quadrupole modes in atomic nuclei.Comment:
Bolotin Yu. L., Henon M., L. Salasnich, Manfredi V. R., Ormand W. E., V. R. Manfredi   +5 more
core   +3 more sources

Inelastic scattering reaction as a probe for monopole, dipole and quadrupole excitations [PDF]

EPJ Web of Conferences
The study of collective motions within atomic nuclei, such as monopole, dipole, and quadrupole excitations, is crucial for understanding nuclear structure and properties, which provide insights into the spatial distribution and dynamic nature of protons ...
Chen Jie, Ma Junrui
doaj   +1 more source

Shape transition with temperature of the pear-shaped nuclei in covariant density functional theory

, 2017
The shape evolutions of the pear-shaped nuclei $^{224}$Ra and even-even $^{144-154}$Ba with temperature are investigated by the finite-temperature relativistic mean field theory with the treatment of pairing correlations by the BCS approach.
Niu, Yi Fei, Zhang, Wei
core   +1 more source

Atomic circulation in evanescent of LG10 mode with active dipole and quadrupole transitions

Journal of Taibah University for Science
The total internal reflection of a light with phase singularity, such as Laguerre–Gaussian (LG) light, can generate an evanescent wave. The distribution of this type of light is firmly localized in the vicinity above the dielectric surface and displays a
S. Al-Awfi
doaj   +1 more source

Spectroscopy of reflection-asymmetric nuclei with relativistic energy density functionals

, 2017
Quadrupole and octupole deformation energy surfaces, low-energy excitation spectra and transition rates in fourteen isotopic chains: Xe, Ba, Ce, Nd, Sm, Gd, Rn, Ra, Th, U, Pu, Cm, Cf, and Fm, are systematically analyzed using a theoretical framework ...
Li, Z. P., Lu, Y., Niksic, T., Tao, H., Vretenar, D., Xia, S. Y.   +5 more
core   +1 more source

Zigzag chain structure transition and orbital fluctuations in Ni-based superconductors

, 2013
We investigate the electronic state and structure transition of BaNi2As2, which shows a similar superconducting phase diagram as Fe-based superconductors.
Kontani, Hiroshi, Onari, Seiichiro, Yamakawa, Youichi   +2 more
core   +1 more source

Phase diagram for a Cubic Consistent-Q Interacting Boson Model Hamiltonian: signs of triaxiality [PDF]

, 2011
An extension of the Consistent-Q formalism for the Interacting Boson Model that includes the cubic QxQxQ term is proposed. The potential energy surface for the cubic quadrupole interaction is explicitly calculated within the coherent state formalism ...
A. Bohr, A. Vitturi, C. E. Alonso, D. Bonatsos, F. Iachello, J. E. García-Ramos, J. M. Arias, J. M. Eisenberg, L. Fortunato, R. Gilmore, R. V. Jolos   +10 more
core   +2 more sources

Electric dipole and quadrupole contributions to valence electron binding in a charge-screening environment

, 2018
We make a multipole expansion of the atomic/molecular electrostatic charge distribution as seen by the valence electron up to the quadrupole term. The Tridiagonal Representation Approach (TRA) is used to obtain an exact bound state solution associated ...
Alhaidari, A. D., Bahlouli, H.
core   +1 more source

Electric Monopole Transition Strengths in 62Ni

EPJ Web of Conferences, 2016
Excited states in 62Ni were populated with a (p, p’) reaction using the 14UD Pelletron accelerator at the Australian National University. Electric monopole transition strengths, ρ2(E0), were measured through simultaneous detection of the internal ...
Evitts L. J., Garnsworthy A. B., Kibédi T., Moukaddam M., Alshahrani B., Eriksen T. K., Holt J. D., Hota S. S., Lane G. J., Lee B. Q., McCormick B. P., Palalani N., Reed M. W., Stroberg S. R., Stuchbery A. E.   +14 more
doaj   +1 more source