Publications (12)
Experimental Constraint on Stellar Electron-Capture Rates from the reaction at 115 MeV/u
J. C. Zamora, R. G. T. Zegers, Sam M. Austin +22
The Gamow-Teller strength distribution from Sr was extracted from a experiment at 115 MeV/ to constrain estimates for the electron-capture rate…
Beta-Delayed Proton Emission Branches in 43Cr
M. Pomorski, K. Miernik, W. Dominik +16
The beta+ decay of very neutron deficient 43Cr has been studied by means of an imaging time projection chamber which allowed recording tracks of charged particles. Events of beta-d…
Proton spectroscopy of 48Ni, 46Fe, and 44Cr
M. Pomorski, M. Pfützner, W. Dominik +21
Results of decay spectroscopy on nuclei in vicinity of the doubly magic 48Ni are presented. The measurements were performed with a Time Projection Chamber with optical readout whic…
Investigation of octupole collectivity near the shape-transitional point
M. Spieker, L. A. Riley, P. D. Cottle +13
Enhanced octupole collectivity is expected in the neutron-deficient Ge, Se and Kr isotopes with neutron number and has indeed been observed for Ge. Shape c…
Hexadecapole strength in the rare isotopes Kr
M. Spieker, S. E. Agbemava, D. Bazin +14
In the Ge-Sr mass region, isotopes with neutron number are known to feature rapid shape changes with both nucleon number and angular momentum. To gain new insights into…
Extraction of neutron-capture cross sections on Zr using the charge-exchange Oslo method
N. D. Pathirana, R. G. T. Zegers, B. Gao +16
The Nb(,He) reaction at 115 MeV/u was studied to demonstrate that nuclear level densities and -ray strength functions can be extracted from charge-exchange reac…
Beta-delayed proton emission in the 100Sn region
G. Lorusso, A. Becerril, A. Amthor +25
Beta-delayed proton emission from nuclides in the neighborhood of 100Sn was studied at the National Superconducting Cyclotron Laboratory. The nuclei were produced by fragmentation…
High-spin μs isomeric states in 96Ag
A. D. Becerril, G. Lorusso, A. M. Amthor +24
The isomeric and β decays of the N = Z +2 nucleus 96Ag were investigated at NSCL. A cascade of γ-ray transitions originating from the de-excitation of a μs isomer was observed f…
Beam Particle Identification and Tagging of Incompletely Stripped Heavy Beams with HEIST
A. K. Anthony, C. Y. Niu, R. S. Wang +26
A challenge preventing successful inverse kinematics measurements with heavy nuclei that are not fully stripped is identifying and tagging the beam particles. For this purpose, the…
Beta-decay of nuclei around Se-90. Search for signatures of a N=56 sub-shell closure relevant the r-process
M. Quinn, A. Aprahamian, J. Pereira +26
Nuclear structure plays a significant role on the rapid neutron capture process (r-process) since shapes evolve with the emergence of shells and sub-shells. There was some indicati…
Shape and structure of N=Z 64Ge; Electromagnetic transition rates from the application of the Recoil Distance Method to knock-out reaction
K. Starosta, A. Dewald, A. Dunomes +27
Transition rate measurements are reported for the first and the second 2+ states in N=Z 64Ge. The experimental results are in excellent agreement with large-scale Shell Model calcu…
Proton removal from Br to Se at intermediate energies
M. Spieker, D. Bazin, S. Biswas +13
We report new experimental data for excited states of Se obtained from proton removal from Br secondary beams on a proton target. The experiments were performed…