161 citations · 408 across the 13 of their papers we have counts for
13 papers
Precision masses of neutron-rich platinum and gold nuclei reveal enhanced shell strength below doubly-magic Pb
David Freire-Fernández, Rui-Jiu Chen, Usama Ahmed +63
The heaviest stable nuclei in the universe owe their existence to quantum shell structure, the grouping of protons and neutrons into discrete energy levels separated by gaps. The l…
Direct observation of and decay from a high-spin long-lived isomer in Ta
J. L. Chen, H. Watanabe, P. M. Walker +20
Ta (, ) is located in the neutron-rich region where a prolate-to-oblate shape transition via triaxial softness is predicted to take place. A pr…
Measurement of the Isolated Nuclear Two-Photon Decay in
D. Freire-Fernández, W. Korten, R. J. Chen +57
The nuclear two-photon or double-gamma () decay is a second-order electromagnetic process whereby a nucleus in an excited state emits two gamma rays simultaneously. To be able…
Properties of 187Ta revealed through isomeric decay
P. M. Walker, Y. Hirayama, G. J. Lane +20
Mass-separated 187Ta in a high-spin isomeric state has been produced for the first time by multi-nucleon transfer reactions, employing an argon gas stopping cell and laser ionisati…
Diversity of shapes and rotations in the gamma-soft 130Ba nucleus: first observation of a t-band in the A=130 mass region
C. M. Petrache, P. M. Walker, S. Guo +38
Several new bands have been identified in 130Ba, among which there is one with band-head spin 8+. Its properties are in agreement with the Fermi-aligned νh11/2^2 , 7/2+[523] \otime…
Spectroscopic factor and proton formation probability for the d3/2 proton emitter 151mLu
F. Wang, B. H. Sun, Z. Liu +42
The quenching of the experimental spectroscopic factor for proton emission from the short-lived isomeric state in Lu was a long-standing problem. In the present…