173 citations · 757 across the 18 of their papers we have counts for
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First observation of the fine structure of the Pygmy Dipole Resonance in a nucleus away from stability via the decay of Rb to Sr
P. Spagnoletti, M. Ramalho, S. Tahtela +52
A comprehensive -ray spectroscopy study of excited states in Sr populated via decay of Rb (, ~keV) was performed with the GRIFFIN spect…
Direct measurement of Enhanced octupole collectivity in 148Dy
P. Spagnoletti, V. Vedia, E. Yuksel +36
Excited states in Dy were populated via decay of Ho using the GRIFFIN spectrometer at the TRIUMF ISAC-I facility. A combined measurement of the mean…
A new avenue in the search for CP violation: Moessbauer spectroscopy of 227-Ac
M. Scheck, R. Chapman, J. Dobaczewski +5
This work proposes a new avenue in the search for CP-violating odd-electric and even-magnetic nuclear moments. A promising candidate to find such moments in the ground state is the…
Model-independent determination of the dipole response of Zn using quasi-monoenergetic and linearly-polarized photon beams
D. Savran, J. Isaak, R. Schwengner +23
[Background] Photon strength functions are an important ingredient in calculations relevant for the nucleosynthesis of heavy elements. The relation to the photoabsorption cross sec…
Isospin Mixing and the Cubic Isobaric Multiplet Mass Equation in the Lowest T = 2, A = 32 Quintet
M. Kamil, S. Triambak, A. Magilligan +24
The isobaric multiplet mass equation (IMME) is known to break down in the first T = 2, A = 32 isospin quintet. In this work we combine high-resolution experimental data with state-…
Accessing the Single-Particle Structure of the Pygmy Dipole Resonance in Pb
M. Spieker, A. Heusler, B. A. Brown +8
New experimental data on the neutron single-particle character of the Pygmy Dipole Resonance (PDR) in Pb are presented. They were obtained from and resonant proton…
Structure of high-lying levels populated in the Y Zr decay
K. R. Mashtakov, V. Yu. Ponomarev, M. Scheck +32
The nature of levels of Zr below the -decay value of Y has been investigated in high-resolution -ray spectroscopy following the decay as wel…
The observation of vibrating pear shapes in radon nuclei: update
P. A. Butler, L. P. Gaffney, P. Spagnoletti +41
There is a large body of evidence that atomic nuclei can undergo octupole distortion and assume the shape of a pear. This phenomenon is important for measurements of electric-dipol…
Evolution of Octupole Deformation in Radium Nuclei from Coulomb Excitation of Radioactive Ra and Ra Beams
P. A. Butler, L. P. Gaffney, P. Spagnoletti +40
There is sparse direct experimental evidence that atomic nuclei can exhibit stable pear shapes arising from strong octupole correlations. In order to investigate the nature of octu…
First direct measurement of the intrinsic dipole moment in pear-shaped thorium isotopes
M. M. R. Chishti, D. O'Donnell, G. Battaglia +6
It is now well established that atomic nuclei composed of certain combinations of protons and neutrons can adopt reflection-asymmetric, or octupole-deformed, shapes at low excitati…
A revised value in the semi-magic nucleus Po
D. Kocheva, G. Rainovski, J. Jolie +29
The lifetimes of the , the and the states of Po have been measured in the Pb(C,Be)Po transfer reaction by the Doppler-s…
Direct Evidence of Octupole Deformation in Neutron-Rich Ba
B. Bucher, S. Zhu, C. Y. Wu +31
The neutron-rich nucleus Ba (=11.5 s) is expected to exhibit some of the strongest octupole correlations among nuclei with mass numbers less than 200. Until no…
Collectivity in the light radon nuclei measured directly via Coulomb excitation
L. P. Gaffney, A. P. Robinson, D. G. Jenkins +49
Background: Shape coexistence in heavy nuclei poses a strong challenge to state-of-the-art nuclear models, where several competing shape minima are found close to the ground state.…
Shape coexistence in neutron-deficient Hg isotopes studied via lifetime measurements in Hg and two-state mixing calculations
L. P. Gaffney, M. Hackstein, R. D. Page +24
The neutron-deficient mercury isotopes, Hg, were studied with the Recoil Distance Doppler Shift (RDDS) method using the Gammasphere array and the Köln Plunger device. T…
Isospin Character of the Pygmy Dipole Resonance in 124Sn
J. Endres, E. Litvinova, D. Savran +15
The pygmy dipole resonance has been studied in the proton-magic nucleus 124Sn with the (a,a'g) coincidence method at E=136 MeV. The comparison with results of photon-scattering exp…
Two-phonon 1- state in 112Sn observed in resonant photon scattering
I. Pysmenetska, S. Walter, J. Enders +10
Results of a photon scattering experiment on 112Sn using bremsstrahlung with an endpoint energy of E_0 = 3.8 MeV are reported. A J = 1 state at E_x = 3434(1) keV has been excited.…