中子滴线搜寻氟、氖和钠以及在RIKEN RIBF发现39Na

IF 1.7 4区物理与天体物理 Q2 PHYSICS, NUCLEAR

Nuclear Physics A Pub Date : 2025-05-08 DOI:10.1016/j.nuclphysa.2025.123154

Toshiyuki Kubo, RIKEN RIBF new isotope collaboration

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引用次数: 0

摘要

在日本理化研究所西那中心的RI束流工厂进行了在中子滴线附近寻找新的氟、氖和钠同位素的实验。采用345mev /核子的48Ca强束弹射破碎产生同位素，并在飞行中使用大接受度两级分离器BigRIPS进行分离和鉴定。我们测定了氟和氖处的中子滴线分别为31F和34Ne，并发现了中子数N = 28的极富中子同位素39Na。结果提供了新的关键，以了解核结合和潜在的核结构在这个极富中子区域。实验的概述和讨论基本的核结构提出。

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Neutron dripline search for fluorine, neon and sodium and the discovery of 39Na at RIKEN RIBF

Experiments to search for new fluorine, neon and sodium isotopes near the neutron dripline were conducted at the RIKEN Nishina Center RI Beam Factory. Isotopes were produced by projectile fragmentation of an intense ⁴⁸Ca beam at 345 MeV/nucleon, and separated and identified in flight using the large-acceptance two-stage separator BigRIPS. We determined the neutron dripline at fluorine and neon to be ³¹F and ³⁴Ne, respectively and discovered an extremely neutron-rich isotope ³⁹Na with neutron number N = 28. The results provide new keys to understanding nuclear binding and underlying nuclear structure in this extremely neutron-rich region. An overview of the experiments and a discussion of the underlying nuclear structure are presented.

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来源期刊

Nuclear Physics A 物理-物理：核物理

CiteScore

3.60

自引率

7.10%

发文量

113

审稿时长

61 days

期刊介绍： Nuclear Physics A focuses on the domain of nuclear and hadronic physics and includes the following subsections: Nuclear Structure and Dynamics; Intermediate and High Energy Heavy Ion Physics; Hadronic Physics; Electromagnetic and Weak Interactions; Nuclear Astrophysics. The emphasis is on original research papers. A number of carefully selected and reviewed conference proceedings are published as an integral part of the journal.