Variations in the charge radii of indium isotopes between N=52 and 82

Vernon AR, Binnersley CL, Sahoo BK, Billowes J, Bissell ML, Cocolios TE, De Groote RP, Farooq-Smith GJ, Flanagan KT, Garcia Ruiz RF, Georgiev G, Gins W, Gustafsson FP, Heinke R, Holt JD, Kanellakopoulos A, Karthein J, Koszorús , Leimbach D, Lynch KM, Miyagi T, Nazarewicz W, Neyens G, Reinhard PG, Ricketts CM, Stroberg SR, Wilkins SG, Yang XF, Yordanov DT (2025)

Publication Type: Journal article

Publication year: 2025

Journal

Physical Review C American Physical Society (APS)

Book Volume: 111

Article Number: 064325

Journal Issue: 6

DOI: 10.1103/PhysRevC.111.064325

Abstract

Measurements of the 5pP3/22→9sS1/22 and 5pP1/22→8sS1/22 transitions in the indium atom, combined with new atomic physics calculations, were used to extract the changes in mean-square nuclear charge radii, δ(r2), of the indium (Z=49) isotopes In101-111, In113-123, and In125-131. With a proton hole in the closed nuclear shell of Z=50, indium provides a detailed study of the effect of unpaired nucleons adjacent to the proton-shell closure, allowing investigation into the charge radii for isotopes between the two major neutron-shell closures at N=50 and N=82. A study of the variations in charge radii between neighboring isotopes with neutron number (the 'odd-even staggering') is presented and provides further insight and challenges for the theoretical description of the size of proton-hole nuclei. Two nuclear theories, density functional theory and the valence-space in-medium similarity renormalization group method, were employed to interpret the data. The new information obtained in this work provides valuable insights into the successes and shortcomings of the theoretical approaches employed.

Authors with CRIS profile

Paul-Gerhard Reinhard Naturwissenschaftliche Fakultät

Involved external institutions

Katholieke Universiteit Leuven (KUL) / Catholic University of Leuven BE Belgium (BE) University of Manchester GB United Kingdom (GB) Massachusetts Institute of Technology (MIT) US United States (USA) (US) Université Paris-Saclay FR France (FR) Europäische Organisation für Kernforschung (CERN) CH Switzerland (CH) Triumf CA Canada (CA) University of Tsukuba / 筑波大学 JP Japan (JP) Michigan State University US United States (USA) (US) University of Notre Dame du Lac US United States (USA) (US) Physical Research Laboratory IN India (IN)

How to cite

APA:

Vernon, A.R., Binnersley, C.L., Sahoo, B.K., Billowes, J., Bissell, M.L., Cocolios, T.E.,... Yordanov, D.T. (2025). Variations in the charge radii of indium isotopes between N=52 and 82. Physical Review C, 111(6). https://doi.org/10.1103/PhysRevC.111.064325

MLA:

Vernon, A. R., et al. "Variations in the charge radii of indium isotopes between N=52 and 82." Physical Review C 111.6 (2025).

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