Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2022 Nov 18;129(21):212502.
doi: 10.1103/PhysRevLett.129.212502.

Discovery of ^{39}Na

D S Ahn  1 , J Amano  2 , H Baba  1 , N Fukuda  1 , H Geissel  3 , N Inabe  1 , S Ishikawa  4 , N Iwasa  4 , T Komatsubara  1 , T Kubo  1 , K Kusaka  1 , D J Morrissey  5 , T Nakamura  6 , M Ohtake  1 , H Otsu  1 , T Sakakibara  4 , H Sato  1 , B M Sherrill  5 , Y Shimizu  1 , T Sumikama  1 , H Suzuki  1 , H Takeda  1 , O B Tarasov  5 , H Ueno  1 , Y Yanagisawa  1 , K Yoshida  1
Affiliations

Discovery of ^{39}Na

D S Ahn et al. Phys Rev Lett. .

Abstract

The new isotope ^{39}Na, the most neutron-rich sodium nucleus observed so far, was discovered at the RIKEN Nishina Center Radioactive Isotope Beam Factory using the projectile fragmentation of an intense ^{48}Ca beam at 345 MeV/nucleon on a beryllium target. Projectile fragments were separated and identified in flight with the large-acceptance two-stage separator BigRIPS. Nine ^{39}Na events have been unambiguously observed in this work and clearly establish the particle stability of ^{39}Na. Furthermore, the lack of observation of ^{35,36}Ne isotopes in this experiment significantly improves the overall confidence that ^{34}Ne is the neutron dripline nucleus of neon. These results provide new key information to understand nuclear binding and nuclear structure under extremely neutron-rich conditions. The newly established stability of ^{39}Na has a significant impact on nuclear models and theories predicting the neutron dripline and also provides a key to understanding the nuclear shell property of ^{39}Na at the neutron number N=28, which is normally a magic number.

PubMed Disclaimer

Similar articles

  • Location of the Neutron Dripline at Fluorine and Neon.
    Ahn DS, Fukuda N, Geissel H, Inabe N, Iwasa N, Kubo T, Kusaka K, Morrissey DJ, Murai D, Nakamura T, Ohtake M, Otsu H, Sato H, Sherrill BM, Shimizu Y, Suzuki H, Takeda H, Tarasov OB, Ueno H, Yanagisawa Y, Yoshida K. Ahn DS, et al. Phys Rev Lett. 2019 Nov 22;123(21):212501. doi: 10.1103/PhysRevLett.123.212501. Phys Rev Lett. 2019. PMID: 31809143
  • Discovery of ^{60}Ca and Implications For the Stability of ^{70}Ca.
    Tarasov OB, Ahn DS, Bazin D, Fukuda N, Gade A, Hausmann M, Inabe N, Ishikawa S, Iwasa N, Kawata K, Komatsubara T, Kubo T, Kusaka K, Morrissey DJ, Ohtake M, Otsu H, Portillo M, Sakakibara T, Sakurai H, Sato H, Sherrill BM, Shimizu Y, Stolz A, Sumikama T, Suzuki H, Takeda H, Thoennessen M, Ueno H, Yanagisawa Y, Yoshida K. Tarasov OB, et al. Phys Rev Lett. 2018 Jul 13;121(2):022501. doi: 10.1103/PhysRevLett.121.022501. Phys Rev Lett. 2018. PMID: 30085743
  • Shell Evolution towards ^{78}Ni: Low-Lying States in ^{77}Cu.
    Sahin E, Bello Garrote FL, Tsunoda Y, Otsuka T, de Angelis G, Görgen A, Niikura M, Nishimura S, Xu ZY, Baba H, Browne F, Delattre MC, Doornenbal P, Franchoo S, Gey G, Hadyńska-Klȩk K, Isobe T, John PR, Jung HS, Kojouharov I, Kubo T, Kurz N, Li Z, Lorusso G, Matea I, Matsui K, Mengoni D, Morfouace P, Napoli DR, Naqvi F, Nishibata H, Odahara A, Sakurai H, Schaffner H, Söderström PA, Sohler D, Stefan IG, Sumikama T, Suzuki D, Taniuchi R, Taprogge J, Vajta Z, Watanabe H, Werner V, Wu J, Yagi A, Yalcinkaya M, Yoshinaga K. Sahin E, et al. Phys Rev Lett. 2017 Jun 16;118(24):242502. doi: 10.1103/PhysRevLett.118.242502. Epub 2017 Jun 16. Phys Rev Lett. 2017. PMID: 28665637
  • Discovery of doubly magic 48Ni.
    Blank B, Chartier M, Czajkowski S, Giovinazzo J, Pravikoff MS, Thomas J, de France G, de Oliveira Santos F, Lewitowicz M, Borcea C, Grzywacz R, Janas Z, Pfutzner M. Blank B, et al. Phys Rev Lett. 2000 Feb 7;84(6):1116-9. doi: 10.1103/PhysRevLett.84.1116. Phys Rev Lett. 2000. PMID: 11017457
  • Magic Nature of Neutrons in ^{54}Ca: First Mass Measurements of ^{55-57}Ca.
    Michimasa S, Kobayashi M, Kiyokawa Y, Ota S, Ahn DS, Baba H, Berg GPA, Dozono M, Fukuda N, Furuno T, Ideguchi E, Inabe N, Kawabata T, Kawase S, Kisamori K, Kobayashi K, Kubo T, Kubota Y, Lee CS, Matsushita M, Miya H, Mizukami A, Nagakura H, Nishimura D, Oikawa H, Sakai H, Shimizu Y, Stolz A, Suzuki H, Takaki M, Takeda H, Takeuchi S, Tokieda H, Uesaka T, Yako K, Yamaguchi Y, Yanagisawa Y, Yokoyama R, Yoshida K, Shimoura S. Michimasa S, et al. Phys Rev Lett. 2018 Jul 13;121(2):022506. doi: 10.1103/PhysRevLett.121.022506. Phys Rev Lett. 2018. PMID: 30085708
See all similar articles

LinkOut - more resources