57 citations · 303 across the 29 of their papers we have counts for
29 papers
Rate coefficients for dielectronic recombination of N-like Ne
E. -O. Hanu, M. Lestinsky, E. B. Menz +16
Dielectronic recombination (DR) for the process Ne + e Ne was investigated in a merged-beams arrangement at the heavy-ion storage ring CRYRING@ESR…
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…
Double to tenfold M-shell photoionization of singly charged lanthanum ions
M. Looshorn, B. M. Döhring, P. -M. Hillenbrand +9
Using the photon-ion merged-beams technique at the PETRA\,III synchrotron light source, we have measured cross sections for double and up to tenfold photoionization of La ion…
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 values…
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…
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…
Testing strong-field QED to second-order in the highly correlated atomic system berylliumlike Pb78+ by electron-ion recombination spectroscopy
S. Schippers, C. Brandau, S. Fuchs +33
A low-energy storage ring with an ultracold electron cooler has been coupled with a heavy-ion accelerator facilitating high-resolution electron-ion collision spectroscopy of the he…
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 th…
Double--hole resonances in single photoionization of He-like B ions
A. Müller, P. -M. Hillenbrand, S. -X. Wang +8
Within a joint experimental and theoretical research project, single photoionization of He-like B ions was investigated in the energy range from approximately 250 to 1200~eV…
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…
Absolute Doubly Differential Angular Sputtering Yields for 20 keV Kr+ on Polycrystalline Cu
Caixia Bu, Liam S. Morrissey, Benjamin C. Bostick +16
We have measured the absolute doubly differential angular sputtering yield for 20 keV Kr+ impacting a polycrystalline Cu slab at an incidence angle of θi = 45° relative to the surf…
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…
Vibrationally Resolved Inner-Shell Photoexcitation of the Molecular Anion C
S. Schippers, P. -M. Hillenbrand, A. Perry-Sassmannshausen +6
Carbon core-hole excitation of the molecular anion C has been experimentally studied at high resolution by employing the photon-ion merged-beams technique at a synchrotr…
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_…
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…
Branching ratio for forming and
Pierre-Michel Hillenbrand, Nathalie de Ruette, Xavier Urbain +1
The gas-phase reaction of has two exothermic product channels, and . In the present…
Electronic structure effects in the electron bremsstrahlung from heavy ions
M. E. Groshev, V. A. Zaytsev, V. A. Yerokhin +3
A fully relativistic approach is presented for the calculation of the bremsstrahlung emitted by an electron scattered off an ionic target. The ionic target is described as a combin…
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…
Towards experiments with highly charged ions at HESR
Rodolfo Sánchez, Angela Braeuning-Demian, Jan Glorius +9
The atomic physic collaboration SPARC is a part of the APPA pillar at the future Facility for Antiproton and Ion Research. It aims for atomic-physics research across virtually the…
Determination of luminosity for in-ring reactions: A new approach for the low-energy domain
Y. M. Xing, J. Glorius, L. Varga +59
Luminosity is a measure of the colliding frequency between beam and target and it is a crucial parameter for the measurement of absolute values, such as reaction cross sections. In…
Electron capture of Xe in collisions with H molecules in the energy range between 5.5 MeV/u and 30.9 MeV/u
F. M. Kröger, G. Weber, M. O. Herdrich +63
The electron capture process was studied for Xe colliding with H molecules at the internal gas target of the ESR storage ring at GSI, Darmstadt. Cross section values fo…
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…
The Magnetic Toroidal Sector as A broad-band Electron-Positron Pair Spectrometer I. Lepton Trajectories
Siegbert Hagmann, Pierre-Michel Hillenbrand, Yurij Litvinov +2
We report an analysis of electron-optical properties of a toroidal magnetic sector spectrometer and examine parameters for its implementation in a relativistic heavy-ion storage ri…
A Magnetic Spectrometer for Electron-Positron Pair Spectroscopy in Storage Rings
S. Hagmann, P. M. Hillenbrand, Yu. A. Litvinov +2
We report an analysis of electron-optical properties of a toroidal magnetic sector spectrometer and examine parameters for its implementation in a relativistic heavy-ion storage ri…