Publications (16)
High-temperature Tl decay clarifies Pb dating in early Solar System
G. Leckenby, R. S. Sidhu, R. J. Chen +56
Radioactive nuclei with lifetimes on the order of millions of years can reveal the formation history of the Sun and active nucleosynthesis occurring at the time and place of its bi…
Bayesian and Monte Carlo approaches to estimating uncertainty for the measurement of the bound-state decay of
G. Leckenby, M. Trassinelli, R. J. Chen +47
The measurement of the bound-state decay of at the Experimental Storage Ring at GSI, Darmstadt, has recently been reported with substantial impact on…
First Proton-Induced Cross Sections on a Stored Rare Ion Beam: Measurement of 118Te(p,γ) for Explosive Nucleosynthesis
F. Dellmann, J. Glorius, Yu. A. Litvinov +75
We present the first nuclear cross-section measurements of (p,γ) and (p,n) reactions on 118Te at energies relevant for the γ-process nucleosynthesis. Absolute cross-section value…
First measurement of the neutron-emission probability with a surrogate reaction in inverse kinematics at a heavy-ion storage ring
M. Sguazzin, B. Jurado, J. Pibernat +50
Neutron-induced reaction cross sections of short-lived nuclei are imperative to understand the origin of heavy elements in stellar nucleosynthesis and for societal applications, bu…
Half-life determination of heavy ions in a storage ring considering feeding and depleting background processes
R. J. Chen, G. Leckenby, R. S. Sidhu +49
Heavy-ion storage rings have relatively large momentum acceptance which allows for multiple ion species to circulate at the same time. This needs to be considered in radioactive de…
Determination of the stellar (n,gamma) cross section of 40Ca with accelerator mass spectrometry
I. Dillmann, C. Domingo-Pardo, M. Heil +11
The stellar (n,gamma) cross section of 40Ca at kT=25 keV has been measured with a combination of the activation technique and accelerator mass spectrometry (AMS). This combination…
Search for beta-delayed proton emission from Be
K. Riisager, M. J. G. Borge, J. A. Briz +16
We report on an attempt to reproduce the observation of $β^-$-delayed proton emission from Be through detection of the final state nucleus Be with accelerator mass s…
Storage, Accumulation and Deceleration of Secondary Beams for Nuclear Astrophysics
J. Glorius, Yu. A. Litvinov, M. Aliotta +61
Low-energy investigations on rare ion beams are often limited by the available intensity and purity of the ion species in focus. Here, we present the first application of a techniq…
Single and double -shell vacancy production in slow Xe-Xe collisions
P. -M. Hillenbrand, S. Hagmann, Y. S. Kozhedub +23
We present an experimental and theoretical study of symmetric collisions at 50, 30, and 15 MeV/u, corresponding to strong perturbations with $v_K/v_…
Bound-State Beta Decay of Ions and the LOREX Project
R. S. Sidhu, G. Leckenby, R. J. Chen +55
Stable Tl ions have the lowest known energy threshold for capturing electron neutrinos () of \,keV. The Lorandite Experiment (LOREX), proposed in…
New Test of Modulated Electron Capture Decay of Hydrogen-Like Pm Ions: Precision Measurement of Purely Exponential Decay
F. C. Ozturk, B. Akkus, D. Atanasov +92
An experiment addressing electron capture (EC) decay of hydrogen-like Pm ions has been conducted at the experimental storage ring (ESR) at GSI. The decay appears to…
Electron-loss-to-continuum cusp in collisions of U with N and Xe
P. -M. Hillenbrand, K. N. Lyashchenko, S. Hagmann +24
We study the electron-loss-to-continuum (ELC) cusp experimentally and theoretically by comparing the ionization of U projectiles in collisions with N and Xe targets, at…
11Be(beta-p), a quasi-free neutron decay?
K. Riisager, O. Forstner, M. J. G. Borge +18
We have observed beta-delayed proton emission from the neutron-rich nucleus 11Be by analysing a sample collected at the ISOLDE facility at CERN with accelerator mass spectrometry (…
First simultaneous measurement of the gamma-ray and neutron emission probabilities in inverse kinematics at a heavy-ion storage ring
M. Sguazzin, B. Jurado, J. Pibernat +50
The probabilities for gamma-ray and particle emission as a function of the excitation energy of a decaying nucleus are valuable observables for constraining the ingredients of the…
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…
X-ray emission associated with radiative recombination for Pb ions at threshold energies
B. Zhu, A. Gumberidze, T. Over +28
For bare lead ions, decelerated to the low beam energy of 10 MeV/u, the x-ray emission associated with radiative recombination (RR) at "cold collision" conditions has been studied…