Extremely large matter radii in 49-51Ca isotopes and the 0+ breathing mode states of 48Ca
Abstract
Through inelastic scattering cross section measurements for 42-51Ca on a carbon target at 280 MeV/nucleon recently, Tanaka et al. [ arXiv:1911.05262 [nucl-ex]], in a very significant experiment, have demonstrated large swelling of doubly magic 48Ca core in calcium isotopes beyond N=28. The matter radii observed in these experiments, are surprisingly much larger than the corresponding, already amazingly large charge radii of the same calcium isotopes, by Garcia et al. [Nat. Phys. 12 (2016) 594]. Here we propose a novel solution, wherein the breathing mode states 0+ of 48Ca, provide a global and consistent solution of this matter radii conundrum.
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