Proton superfluidity and charge radii in proton-rich calcium isotopes

Miller AJ, Minamisono K, Klose A, Garand D, Kujawa C, Lantis JD, Liu Y, Maaß B, Mantica PF, Nazarewicz W, Nörtershäuser W, Pineda SV, Reinhard PG, Rossi DM, Sommer F, Sumithrarachchi C, Teigelhöfer A, Watkins J (2019)

Publication Type: Journal article

Publication year: 2019

Journal

Nature Physics Nature Research

Book Volume: 15

Pages Range: 432-436

Journal Issue: 5

DOI: 10.1038/s41567-019-0416-9

Abstract

One of the most important global properties of the atomic nucleus is its size. Experimentally determined nuclear charge radii carry unique information on the nuclear force and complex dynamics of protons and neutrons moving inside the nucleus. The intricate behaviour of charge radii along the chain of Ca isotopes, including the unexpectedly large charge radius of neutron-rich 52 Ca, poses a daunting challenge for nuclear theory 1 . Here we present the measurements of the charge radii of proton-rich isotopes 36,37,38 Ca, whose properties are impacted by the interplay between nuclear superfluidity and weak binding. Calculations carried out within nuclear density functional theory show that the combination of a novel interaction 2 and a state-of-the-art theoretical method can successfully explain the behaviour of charge radii from the lightest to the heaviest Ca isotopes. Through this model, we show how the new data on 36,37,38 Ca elucidate the nature of nucleonic pairing in weakly bound proton-rich isotopes.

Authors with CRIS profile

Paul-Gerhard Reinhard Naturwissenschaftliche Fakultät

Additional Organisation(s)

Institut für Theoretische Physik

Involved external institutions

Technische Universität Darmstadt DE Germany (DE) Michigan State University US United States (USA) (US) Augustana University US United States (USA) (US) Oak Ridge National Laboratory US United States (USA) (US) Triumf CA Canada (CA)

How to cite

APA:

Miller, A.J., Minamisono, K., Klose, A., Garand, D., Kujawa, C., Lantis, J.D.,... Watkins, J. (2019). Proton superfluidity and charge radii in proton-rich calcium isotopes. Nature Physics, 15(5), 432-436. https://dx.doi.org/10.1038/s41567-019-0416-9

MLA:

Miller, A. J., et al. "Proton superfluidity and charge radii in proton-rich calcium isotopes." Nature Physics 15.5 (2019): 432-436.

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