Stability of the manifold boundary approximation method for reductions of nuclear structure models

Znanstveni rad - Izvorni znanstveni rad

• Autor: M. Imbrišak
• Autor: K. Nomura
• Autorova ustanova: Sveučilište u Zagrebu; Prirodoslovno-matematički fakultet; (Fizički odsjek)
• Znanstveno / umjetničko područje, polje i grana: PRIRODNE ZNANOSTI; Fizika

Sažetak (engleski)

The framework of nuclear energy density functionals has been employed to describe nuclear structure phenomena for a wide range of nuclei. Recently, statistical properties of a given nuclear model, such as parameter confidence intervals and correlations, have received much attention, particularly when one tries to fit complex models. We apply information-theoretic methods to investigate stability of model reductions by the manifold boundary approximation method (MBAM). In an illustrative example of the density-dependent point-coupling model of the relativistic energy density functional, utilizing Monte Carlo simulations, it is found that main conclusions obtained from the MBAM procedure are stable under variation of the model parameters. Furthermore, we find that the end of the geodesic occurs when the determinant of the Fisher information metric vanishes, thus effectively separating the parameter space into two disconnected regions.

• Ključne riječi (engleski): nuclear theory
• Jezik: engleski
• Vrsta publikacije: Znanstveni rad - Izvorni znanstveni rad
• Status objave: Objavljen
• Vrsta recenzije: Recenziran - međunarodna recenzija
• Verzija publikacije: Objavljena verzija rada (izdavačev PDF)
• Naslov časopisa: Physical Review C
• Brojčani podaci: vol. 107, br. 3, 034304
• p-ISSN: 2469-9985
• e-ISSN: 2469-9993
• DOI: https://doi.org/10.1103/PhysRevC.107.034304
• URN:NBN: urn:nbn:hr:217:738268
• Datum objave publikacije: 2023
• Projekt: Šifra: TTP-2018-07-3554; Naziv (hrvatski): Exotic Nuclear Structure and Dynamics; Kratica: ExoNSD; Voditelj: Kosuke Nomura; Pravna nadležnost: Hrvatska; Financijer: HRZZ; Linija financiranja: TTP
• URL dokumenta: https://link.aps.org/doi/10.1103/PhysRevC.107.034304
• Vrsta resursa: Tekst
• Prava pristupa: Otvoreni pristup
• Javna napomena: © 2023 American Physical Society. Received 24 November 2022; Accepted 15 February 2023; Published 7 March 2023.
• Datum i vrijeme pohrane: 2023-08-23 11:55:01