prikaz prve stranice dokumenta Calculation of β-decay rates in a relativistic model with momentum-dependent self-energies
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Scientific paper - Original scientific paper
Calculation of β-decay rates in a relativistic model with momentum-dependent self-energies
Physical Review C - Nuclear Physics, 75 (2007), 2; 024304. https://doi.org/10.1103/PhysRevC.75.024304
Marketin, Tomislav; Vretenar, Dario; Ring, Peter

Institutional repository: Repository of the Faculty of Science

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Marketin, T., Vretenar, D. & Ring, P. (2007). Calculation of β-decay rates in a relativistic model with momentum-dependent self-energies. Physical Review C - Nuclear Physics, 75. (2). doi: 10.1103/PhysRevC.75.024304

Marketin, Tomislav, et al. "Calculation of β-decay rates in a relativistic model with momentum-dependent self-energies." Physical Review C - Nuclear Physics, vol. 75, no. 2, 2007. https://doi.org/10.1103/PhysRevC.75.024304

Marketin, Tomislav, Dario Vretenar and Peter Ring. "Calculation of β-decay rates in a relativistic model with momentum-dependent self-energies." Physical Review C - Nuclear Physics 75, no. 2 (2007). https://doi.org/10.1103/PhysRevC.75.024304

Marketin, T., Vretenar, D. and Ring, P. (2007) 'Calculation of β-decay rates in a relativistic model with momentum-dependent self-energies', Physical Review C - Nuclear Physics, 75(2). doi: 10.1103/PhysRevC.75.024304

Marketin T, Vretenar D, Ring P. Calculation of β-decay rates in a relativistic model with momentum-dependent self-energies. Physical Review C - Nuclear Physics [Internet]. 2007 [cited 2024 November 18];75(2). doi: 10.1103/PhysRevC.75.024304

T. Marketin, D. Vretenar and P. Ring, "Calculation of β-decay rates in a relativistic model with momentum-dependent self-energies", Physical Review C - Nuclear Physics, vol. 75, no. 2, 2007. [Online]. Available at: https://urn.nsk.hr/urn:nbn:hr:217:463907. [Accessed: 18 November 2024]

Metadata
Title (english)Calculation of β-decay rates in a relativistic model with momentum-dependent self-energies
AuthorTomislav Marketin
AuthorDario Vretenar
AuthorPeter Ring
Author's institutionUniversity of Zagreb
Faculty of Science
(Department of Physics)
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Physics
Abstract (english)
The relativistic proton-neutron quasiparticle random phase approximation (PN-RQRPA) is applied in the calculation of β-decay half-lives of neutron-rich nuclei in the Z≈28 and Z≈50 regions. The study is based on the relativistic Hartree-Bogoliubov calculation of nuclear ground states, using effective Lagrangians with density-dependent meson-nucleon couplings, and also extended by the inclusion of couplings between the isoscalar meson fields and the derivatives of the nucleon fields. This leads to a linear momentum dependence of the scalar and vector nucleon self-energies. The residual QRPA interaction in the particle-hole channel includes the π+ρ exchange plus a Landau-Migdal term. The finite-range Gogny interaction is employed in the T=1 pairing channel, and the model also includes a proton-neutron particle-particle interaction. The results are compared with available data, and it is shown that an extension of the standard relativistic mean-field framework to include momentum-dependent nucleon self-energies naturally leads to an enhancement of the effective (Landau) nucleon mass, and thus to an improved PN-QRPA description of β^ -decay rates.
Languageenglish
Publication typeScientific paper - Original scientific paper
Publication statusPublished
Peer reviewPeer review - international
Publication versionPublished version
Journal titlePhysical Review C - Nuclear Physics
Numberingvol. 75, no. 2, 024304
p-ISSN0556-2813
e-ISSN1089-490X
DOIhttps://doi.org/10.1103/PhysRevC.75.024304
URN:NBNurn:nbn:hr:217:463907
Publication2007
ProjectNumber: 119-1191005-1010
Title (croatian): Nuklearna struktura i nuklearna astrofizika
Leader: Dario Vretenar
Jurisdiction: Croatia
Funding stream: ZP
Document URLhttp://link.aps.org/doi/10.1103/PhysRevC.75.024304
Type of resourceText
Access conditionsOpen access
Terms of useLicence In copyright icon
Public noteCopyright (2007) by the American Physical Society.
Created on2019-10-16 15:45:38