SÁNCHEZ SÁNCHEZ, M.; DUC, Dao Duy; BONNEAU, L.

doi:10.1103/PhysRevC.107.064307

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SÁNCHEZ SÁNCHEZ, M.
Centre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]

DUC, Dao Duy
Institut Pluridisciplinaire Hubert Curien [IPHC]

BONNEAU, L.
Centre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]

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Phys.Rev.C. 2023, vol. 107, n° 6, p. 064307

Résumé en anglais

We explore the effects on nuclear bulk properties of using regularization cutoffs larger than the nucleon mass within the chiral effective field theory using a power counting that ensures order-by-order renormalization in the two-nucleon system. To do so we calculate ground-state properties of the $^{16}$O nucleus in the Hartree--Fock approach in a basis made up of plane waves confined in a cube. We find a strong sensitivity to the regularization cutoff through the counter-terms in attractive singular partial waves and to the correction for spurious deeply bound states. This questions the possibility of testing in nuclei the renormalization-group invariance of renormalizable potentials from chiral effective field theory at leading order. A possible way out of this problem is proposed.< Réduire

Mots clés en anglais

effective field theory: chiral

renormalization group: invariance

potential: renormalizable

nucleon: mass

nucleus

regularization

renormalization

ground state

partial wave

bound state

plane wave

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Cutoff effects in Hartree-Fock calculations at leading order of chiral effective field theory

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