5 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 Neutron Reactions in Storage Rings Utilizing a Supercompact Cyclotron Neutron Target
Ariel Tarifeño-Saldivia, César Domingo-Pardo, Iris Dillmann +1
We propose a new approach for a high-density free-neutron target, primarily aimed at nuclear astrophysics reaction studies in inverse kinematics with radioactive ions circulating i…
The QTF-Backbone: Proposal for a Nationwide Optical Fibre Backbone in Germany for Quantum Technology and Time and Frequency Metrology
Klaus Blaum, Peter Kaufmann, Jochen Kronjäger +168
The recent breakthroughs in the distribution of quantum information and high-precision time and frequency (T&F) signals over long-haul optical fibre networks have transformative po…
Schottky detection techniques for ultra-rare short-lived ions in heavy ion storage rings
Shahab Sanjari, Yuri A. Litvinov, George Hudson-Chang +10
Non-destructive Schottky detectors are indispensable devices widely used in experiments at heavy-ion storage rings. In particular, they can be used to accurately determine the mass…
Quantum Electrodynamics in Strong Electromagnetic Fields: Substate Resolved K Transition Energies in Helium-like Uranium
Philip Pfäfflein, Günter Weber, Steffen Allgeier +34
Using novel metallic magnetic calorimeter detectors at the CRYRING@ESR, we recorded X-ray spectra of stored and electron cooled helium-like uranium (U) with an unmatched sp…