258 citations · 865 across the 16 of their papers we have counts for
15 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…
Development and operation of an electrostatic time-of-flight detector for the Rare RI storage Ring
D. Nagae, Y. Abe, S. Okada +28
An electrostatic time-of-flight detector named E-MCP has been developed for quick diagnostics of circulating beam and timing measurement in mass spectrometry at the Rare-RI Ring in…
Swelling of doubly magic Ca core in Ca isotopes beyond
M. Tanaka, M. Takechi, A. Homma +67
Interaction cross sections for Ca on a carbon target at 280 MeV/nucleon have been measured for the first time. The neutron number dependence of derived root-mean…
Application of isochronous mass spectrometry for the study of angular momentum population in projectile fragmentation reactions
X. L. Tu, A. Kelic-Heil, Yu. A. Litvinov +37
Isochronous mass spectrometry was applied to measure isomeric yield ratios of fragmentation reaction products. This approach is complementary to conventional gamma-ray spectroscopy…
Identification of the Lowest , Isobaric Analog State in Co and Its Impact on the Understanding of -Decay Properties of Ni
X. Xu, P. Zhang, P. Shuai +35
Masses of Co were measured for the first time with an accuracy of keV, an unprecedented precision reached for short-lived nuclei in the isochronous mass spect…
Direct mass measurements of Cd isotopes show strong shell gap at N=82
R. Knöbel, M. Diwisch, F. Bosch +32
A U projectile beam was used to create cadmium isotopes via abrasion-fission at 410 MeV/u in a beryllium target at the entrance of the in-flight separator FRS at GSI. The f…
Numerical analysis of transient orbits by the pullback method for covariant Lyapunov vector
Takayuki Yamaguchi, Makoto Iima
In order to analyze structure of tangent spaces of a transient orbit, we propose a new algorithm which pulls back vectors in tangent spaces along the orbit by using a calculation m…
Accurate correction of magnetic field instabilities for high-resolution isochronous mass measurements in storage rings
P. Shuai, H. S. Xu, Y. H. Zhang +20
Isochronous mass spectrometry (IMS) in storage rings is a successful technique for accurate mass measurements of short-lived nuclides with relative precision of about $10^{-5}-10^{…
Charge and frequency resolved isochronous mass spectrometry in storage rings: First direct mass measurement of the short-lived neutron-deficient Co nuclide
P. Shuai, H. S. Xu, X. L. Tu +31
Revolution frequency measurements of individual ions in storage rings require sophisticated timing detectors. One of common approaches for such detectors is the detection of second…
Direct observation of long-lived isomers in Bi
L. Chen, P. M. Walker, H. Geissel +40
Long-lived isomers in 212Bi have been studied following 238U projectile fragmentation at 670 MeV per nucleon. The fragmentation products were injected as highly charged ions into t…
Observation of new microsecond isomers among fission products of 345 MeV/nucleon 238U
D. Kameda, T. Kubo, T. Ohnishi +56
A search for isomeric gamma-decays among fission fragments from 345 MeV/nucleon 238U has been performed at the RIKEN Nishina Center RI Beam Factory. Fission fragments were selected…
New Result in the Production and Decay of an Isotope, 278[113], of the 113th Element
Kosuke Morita, Kouji Morimoto, Daiya Kaji +35
An isotope of the 113th element, i.e., 278[113], was produced in a nuclear reaction with a 70Zn beam on a 209Bi target. We observed six consecutive α-decays following the implantat…
Test of the Conserved Vector Current Hypothesis by beta-ray Angular Distribution Measurement in the Mass-8 System
T. Sumikama, K. Matsuta, T. Nagatomo +9
The beta-ray angular correlations for the spin alignments of 8Li and 8B have been observed in order to test the conserved vector current (CVC) hypothesis. The alignment correlation…
Identification of 45 New Neutron-Rich Isotopes Produced by In-Flight Fission of a 238U Beam at 345 MeV/nucleon
Tetsuya Ohnishi, Toshiyuki Kubo*, Kensuke Kusaka +57
A search for new isotopes using in-flight fission of a 345 MeV/nucleon 238U beam has been carried out at the RI Beam Factory at the RIKEN Nishina Center. Fission fragments were ana…
Present and Future Experiments with Stored Exotic Nuclei at Relativistic Energies
H. Geissel, Yu. A. Litvinov, B. Pfeiffer
Recent progress is presented from experiments on masses and lifetimes of bare and few-electron exotic nuclei at GSI.