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Isospin nonconservation in sd-shell nuclei
| hal.structure.identifier | Physique théorique [THEORIE] | |
| dc.contributor.author | H. LAM, Y. | |
| hal.structure.identifier | Physique théorique [THEORIE] | |
| dc.contributor.author | SMIRNOVA, N.A. | |
| hal.structure.identifier | Institut Pluridisciplinaire Hubert Curien [IPHC] | |
| dc.contributor.author | CAURIER, E. | |
| dc.date.issued | 2013 | |
| dc.identifier.issn | 2469-9985 | |
| dc.description.abstractEn | The question of isospin-symmetry breaking in nuclei of the $sd$ shell is addressed. We propose a new global parameterization of the isospin-nonconserving (INC) shell-model Hamiltonian which accurately describes experimentally known isobaric mass splittings. The isospin-symmetry violating part of the Hamiltonian consists of the Coulomb interaction and effective charge-dependent forces of nuclear origin. Particular attention has been paid to the effect of the short-range correlations. The behavior of $b$ and $c$ coefficients of the isobaric-mass-multiplet equation (IMME) is explored in detail. In particular, a high-precision numerical description of the staggering effect is proposed and contribution of the charge-dependent forces to the nuclear pairing is discussed. The Hamiltonian is applied to the study of the IMME beyond a quadratic form in the A=32 quintet, as well as to calculation of nuclear structure corrections to superallowed $0^+ \to 0^+$ Fermi $\beta$ decay, and to amplitudes of Fermi transitions to non-analogue states in sd-shell nuclei. | |
| dc.language.iso | en | |
| dc.publisher | American Physical Society | |
| dc.title.en | Isospin nonconservation in sd-shell nuclei | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1103/PhysRevC.87.054304 | |
| dc.subject.hal | Physique [physics]/Physique Nucléaire Théorique [nucl-th] | |
| dc.identifier.arxiv | 1210.0183 | |
| bordeaux.journal | Physical Review C | |
| bordeaux.page | 054304 | |
| bordeaux.volume | 87 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | in2p3-00835869 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Non spécifiée | |
| hal.origin.link | https://hal.archives-ouvertes.fr//in2p3-00835869v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Physical%20Review%20C&rft.date=2013&rft.volume=87&rft.spage=054304&rft.epage=054304&rft.eissn=2469-9985&rft.issn=2469-9985&rft.au=H.%20LAM,%20Y.&SMIRNOVA,%20N.A.&CAURIER,%20E.&rft.genre=article |
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