activity
20192026
most citedHigh-temperature Tl decay clarifies Pb dating in early Solar System

22 citations · 65 across the 12 of their papers we have counts for

collaborators

12 papers

nucl-ex2026

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…

physics.acc-ph2026

Corrections for systematic errors in slit-profiler transverse phase space measurements

C. Richard, M. Krasilnikov, N. Aftab +8

In photo injectors, the transverse emittance is one of the key measures of beam quality as it defines the possible performance of the whole facility. As such it is important to mea…

nucl-ex2025★ 1 cited

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…

physics.acc-ph2025

Software Defined Radio for on-line interaction with beam processes in the heavy ion storage ring ESR

M. S. Sanjari, Yu. A. Litvinov, S. Litvinov +19

The application of software defined radio in on-line interaction with the beam processes of the heavy ion storage ring is presented. It is discussed how this new technique can enha…

physics.ins-det2025

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…

nucl-ex2025★ 1 cited

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…

nucl-ex2025★ 10 cited

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…

nucl-ex2024★ 22 cited

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…

nucl-ex2023

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…

physics.atom-ph2022★ 6 cited

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_…

physics.atom-ph2022★ 16 cited

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…

physics.ins-det2019★ 9 cited

Position sensitive resonant Schottky cavities for heavy ion storage rings

D. Dmytriiev, M. S. Sanjari, Yu. A. Litvinov +1

Studying the rapid neutron capture process (r-process) in stellar environments, that leads to the creation of elements heavier than 56-Fe, remains one of the fundamental questions…