2026 article

Beta-Decay Half-Lives beyond Ca 54 : A Systematic Survey of Decay Properties Approaching the Neutron Dripline

W.-J. Ong, Z. Y. Xu, R. Grzywacz, A. Ravlić, I. Cox, J. M. Allmond, T. T. King, B. C. Rasco, K. P. Rykaczewski, H. Schatz, B. M. Sherrill, O. B. Tarasov, B. A. Brown, S. Ajayi, H. Arora, A. D. Ayangeakaa, H. C. Berg, J. M. Berkman, D. L. Bleuel, K. Bosmpotinis, M. P. Carpenter, G. Cerizza, A. Chester, J. M. Christie, H. L. Crawford, B. P. Crider, Jason A. Davis, A. A. Doetsch, J. G. Duarte, A. Estrade, Alexandra Fijalkowska, C. Frantzis, K. Fukushima, T. Gaballah, T. J. Gray, E. Good, K. Haak, S. Hanai, A. C. Hartley, J. T. Harke, K. Hermansen, Craig Harris, M. Hausmann, D. E. M. Hoff, D. Hoskins, John C. Huffman, R. Jain, M. Karny, N. Kitamura, Kay Kolos, E. Kwan, A. Laminack, S. N. Liddick, B. Longfellow, R. S. Lubna, S. Lyons, Miguel Madurga, M. Mogannam, Sneha Neupane, A. Nowicki, T. H. Ogunbeku, G. Owens-Fryar, J. R. Palomino, M. Portillo, M. M. Rajabali, A. L. Richard, I. Richardson, E. Ronning, G. E. Rose, Thomas Ruland, N. D. Scielzo, D. P. Scriven, D. Seweryniak, K. Siegl, M. Singh, M. K. Smith, A. Spyrou, M. Stepaniuk, Adriana Sweet, Vandana Tripathi, A. Tsantiri, S. Uthayakumaar, W. B. Walters, S. Watters, M. Wolińska-Cichocka, R. Yokoyama

3Citations signalées, ce qui n’est pas une note de qualité

19Institutions déclarées

4Pays d’affiliation déclarés

Rattachement africain : us, hr, pl, jp. Niveau de preuve : code pays fourni par la source.

Le résumé fourni par la source

In an experiment performed at the Facility for Rare Isotope Beams (FRIB) using the FRIB Decay Station initiator, 15 new half-lives of isotopes near ^{54}Ca were measured. A new method of extracting lifetimes from experimental data, taking into account the unknown β-delayed neutron emission branches of very neutron-rich nuclei, was developed to enable systematic uncertainty analysis. The experiment observed a dramatic change in the half-life systematics for the isotopes with neutron number N=34. Beyond N=34, the decline of nuclear lifetime is much slower, leading to longer than anticipated lifetimes for near-dripline nuclei. State-of-the-art shell-model calculations can explain the experimental results, revealing the imprint of shell effects and the need for modification of single-particle neutron states. The results from a newly developed quasirandom-phase approximation model with potential for making global predictions were also tested against the experimental results and good agreement was found.

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.

Le contrôle bibliographique ouvert

DOI retrouvé dans Crossref DOI retrouvé, mais le titre doit être comparé manuellement.

Titre Crossref: Beta-Decay Half-Lives beyond <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"> <mml:mrow> <mml:mmultiscripts> <mml:mrow> <mml:mi>Ca</mml:mi> </mml:mrow> <mml:mprescripts/> <mml:none/> <mml:mrow> <mml:mn>54</mml:mn> </mml:mrow> </mml:mmultiscripts> </mml:mrow> </mml:math> : A Systematic Survey of Decay Properties Approaching the Neutron Dripline
Date Crossref: 04/03/2026
Éditeur: American Physical Society (APS)
Type: journal-article

Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.

Les institutions déclarées

Lawrence Livermore National Laboratory University of Tennessee at Knoxville University of Zagreb Facility for Rare Isotope Beams Oak Ridge National Laboratory Michigan State University Florida State University Central Michigan University Duke University Argonne National Laboratory Lawrence Berkeley National Laboratory Mississippi State University Pacific Northwest National Laboratory University of Warsaw The University of Tokyo Tennessee Technological University Ohio University University of California, Berkeley University of Maryland, College Park

Une affiliation ne permet pas de déduire la nationalité d’un auteur.

Les sujets associés

Nuclear physics research studiesRadioactive Decay and Measurement TechniquesNeutrino Physics Research

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