Linkage between β and γ vibrational excitations in deformed nuclei

1992 ◽  
Vol 45 (1) ◽  
pp. R9-R12 ◽  
Author(s):  
W.-T. Chou ◽  
R. F. Casten ◽  
P. von Brentano
Keyword(s):  
Deformed Nuclei ◽  
Vibrational Excitations

scholarly journals Low lying oscillations of deformed nuclei

2018 ◽  
Vol 178 ◽  
pp. 02009
Author(s):  
Ani Aprahamian ◽  
Shelly R. Lesher
Keyword(s):  
Nuclear Structure ◽  
Vibrational Excitation ◽  
Deformed Nuclei ◽  
Vibrational Excitations

Low-lying oscillations of the intrinsic deformed shape of a nucleus remain an open challenge in nuclear structure. The question or challenge revolves around the viability of single or multiple quanta of vibrational excitations superimposed on the equilibrium, deformed shape of a nucleus. The K=2 or “γ” vibrations are fairly widespread and nominally conform to expectations whereas the existence of the K=0 or “β” vibrational excitation is yet to be distinguished from other possible origins including the coexistence of other potential minima.

Quadrupole and Hexadecapole Vibrational Excitations in Deformed Nuclei

1997 ◽  
Vol 06 (03) ◽  
pp. 437-473 ◽  
Author(s):  
V. G. Soloviev ◽  
A. V. Sushkov ◽  
N. Yu. Shirikova
Keyword(s):  
Experimental Data ◽  
Rare Earth ◽  
Energy Range ◽  
Strength Distribution ◽  
Wave Functions ◽  
Nuclear Model ◽  
Vibrational States ◽  
Deformed Nuclei ◽  
Structure Information ◽  
Vibrational Excitations

Energies, wave functions of the quadrupole and hexadecapole states, B(Eλ) and B(M1) values are calculated within the quasiparticle-phonon nuclear model in a number of well-deformed even-even nuclei in the rare earth region. Reasonably good overall agreement with available experimental data is obtained. Specific properties of the Kπ = 0+ and two-gamma vibrational states are discussed. The distributions of the M1 strength is studied. It is shown that the M1 strength is more strongly fragmented in Er isotopes compared to Gd and Dy isotopes. The fragmentation of one- and two-phonon states is investigated. The fragmentation of one-phonon states strongly affects the Eλ and M1 strength distribution at energies above 2.5–3.0 MeV. The wave functions in the energy range 2–4 MeV contain specific nuclear structure information and these states cannot be treated as chaotic.

First experimental evidence for two-phonon octupole-γ-vibrational excitations in deformed nuclei

1993 ◽  
Vol 71 (14) ◽  
pp. 2180-2183 ◽  
Author(s):  
U. Kneissl ◽  
A. Zilges ◽  
J. Margraf ◽  
I. Bauske ◽  
P. von Brentano ◽  
...  
Keyword(s):  
Experimental Evidence ◽  
Deformed Nuclei ◽  
Vibrational Excitations

On vibrational excitations in deformed nuclei: a re-examination of the 04+band in168Er

1985 ◽  
Vol 11 (7) ◽  
pp. 877-881 ◽  
Author(s):  
S W Yates ◽  
E D Kleppinger ◽  
E W Kleppinger
Keyword(s):  
Deformed Nuclei ◽  
Vibrational Excitations

scholarly journals Consistency of nucleon-transfer sum rules in well-deformed nuclei

2021 ◽  
Vol 103 (2) ◽  
Author(s):  
B. P. Kay ◽  
J. P. Schiffer ◽  
S. J. Freeman ◽  
T. L. Tang ◽  
B. D. Cropper ◽  
...  
Keyword(s):  
Sum Rules ◽  
Deformed Nuclei ◽  
Nucleon Transfer

scholarly journals Nuclear incompressibility from spherical and deformed nuclei

2020 ◽  
Vol 1643 ◽  
pp. 012129
Author(s):  
Danilo Gambacurta ◽  
Gianluca Colò ◽  
Alessandro Pastore
Keyword(s):  
Deformed Nuclei ◽  
Nuclear Incompressibility

scholarly journals Vibrational resonant inelastic X-ray scattering in liquid acetic acid: a ruler for molecular chain lengths

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Viktoriia Savchenko ◽  
Iulia Emilia Brumboiu ◽  
Victor Kimberg ◽  
Michael Odelius ◽  
Pavel Krasnov ◽  
...  
Keyword(s):  
Molecular Structure ◽  
Acetic Acid ◽  
Molecular Chain ◽  
X Ray ◽  
X Ray Scattering ◽  
Localized Excitations ◽  
Vibrational Excitations ◽  
Chain Lengths ◽  
X Ray Absorption ◽  
Ray Scattering

AbstractQuenching of vibrational excitations in resonant inelastic X-ray scattering (RIXS) spectra of liquid acetic acid is observed. At the oxygen core resonance associated with localized excitations at the O–H bond, the spectra lack the typical progression of vibrational excitations observed in RIXS spectra of comparable systems. We interpret this phenomenon as due to strong rehybridization of the unoccupied molecular orbitals as a result of hydrogen bonding, which however cannot be observed in x-ray absorption but only by means of RIXS. This allows us to address the molecular structure of the liquid, and to determine a lower limit for the average molecular chain length.

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