Isobaric-multiplet mass equation in a macroscopic-microscopic approach
| dc.contributor.author | KLOCHKO, Oleg | |
| hal.structure.identifier | Centre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG] | |
| dc.contributor.author | SMIRNOVA, Nadezda A. | |
| dc.date.issued | 2021 | |
| dc.description.abstractEn | We study the a, b, and c coefficients of the isobaric-multiplet mass equation (IMME) using a macroscopic-microscopic approach developed by P. Möller and collaborators [At. Data Nucl. Data Tables 59, 185 (1995)ADNDAT0092-640X10.1006/adnd.1995.1002; At. Data Nucl. Data Tables 109-110, 1 (2016)ADNDAT0092-640X10.1016/j.adt.2015.10.002]. We show that already the macroscopic part of the finite-range liquid-drop model (FRLDM) describes the general trend of the a and b coefficients relatively well, while the staggering behavior of b coefficients for doublets and quartets can be understood in terms of the difference of average proton and neutron pairing energies. The sets of isobaric masses, predicted by the full macroscopic-microscopic approaches, are used to explore the general trends of IMME coefficients up to A=100. We conclude that while the agreement for a coefficients is quite satisfactory, the full approaches have less sensitivity to predict the IMME b and c coefficients in detail. The best set of theoretical b coefficients, as given by the modified macroscopic part of the FRLDM, is used to predict masses of proton-rich nuclei based on the known experimental masses of neutron-rich mirror partners, and subsequently to investigate their one- and two-proton separation energies in proton-rich nuclei up to the A=100 region. The estimated position of the proton drip line is in fair agreement with known experimental data. These masses are important for simulations of the astrophysical rp process. | |
| dc.language.iso | en | |
| dc.subject.en | Nuclear Structure | |
| dc.title.en | Isobaric-multiplet mass equation in a macroscopic-microscopic approach | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1103/PhysRevC.103.024316 | |
| dc.subject.hal | Physique [physics]/Physique Nucléaire Théorique [nucl-th] | |
| dc.subject.hal | Physique [physics]/Physique Nucléaire Expérimentale [nucl-ex] | |
| dc.identifier.arxiv | 1912.09915 | |
| bordeaux.journal | Phys.Rev.C | |
| bordeaux.page | 024316 | |
| bordeaux.volume | 103 | |
| bordeaux.issue | 2 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-02458692 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-02458692v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Phys.Rev.C&rft.date=2021&rft.volume=103&rft.issue=2&rft.spage=024316&rft.epage=024316&rft.au=KLOCHKO,%20Oleg&SMIRNOVA,%20Nadezda%20A.&rft.genre=article |
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