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HK: Fachverband Physik der Hadronen und Kerne
HK 6: Structure and Dynamics of Nuclei II
HK 6.2: Vortrag
Montag, 11. März 2024, 17:15–17:30, HBR 19: C 5b
Two-Neutron Halo Nuclei With Weak Neutron-Core Interaction — •Daniel Kromm1, Matthias Göbel2, and Hans-Werner Hammer1 — 1Technische Universität Darmstadt, Institut für Kernphysik — 2Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
We investigate the renormalization properties of an EFT for two-neutron halo nuclei with weak neutron-core interaction proposed by Hongo and Son. In this theory, there is a universal prediction for the ratio of the mean-square matter radius and charge radius. We investigate the possibility to predict the radii separately without using additional input. We argue that one further renormalization input is required to predict both radii separately. Using one of the radii as this input, we quantify the restriction on the UV cutoff from the Landau pole. We apply our results to the case of 22C and discuss the hierarchy of scales implicit in the power counting.
This work is supported by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) - Project-ID 279384907 - SFB 1245.
Keywords: effective field theory; halo nuclei; Borromean nuclei; renormalization