Discovery of Rn-229 and the Structure of the Heaviest Rn and Ra Isotopes from Penning-Trap Mass Measurements

Neidherr, D.; Audi, G.; Beck, D.; Blaum, K.; Boehm, Ch.; Breitenfeldt, M.; Cakirli, Rabia; Casten, R.; George, S.; Herfurth, F.; Herlert, A.; Kellerbauer, A.; Kowalska, M.; Lunney, D.; Minaya-Ramirez, E.; Naimi, S.; Noah, E.; Penescu, L.; Rosenbusch, M.; Schwarz, S.; Schweikhard, L.; Stora, T.

doi:10.1103/physrevlett.102.112501

Discovery of Rn-229 and the Structure of the Heaviest Rn and Ra Isotopes from Penning-Trap Mass Measurements

Atıf İçin Kopyala

Neidherr D., Audi G., Beck D., Blaum K., Boehm C., Breitenfeldt M., ...Daha Fazla

PHYSICAL REVIEW LETTERS, cilt.102, sa.11, 2009 (SCI-Expanded)

Yayın Türü: Makale / Tam Makale
Cilt numarası: 102 Sayı: 11
Basım Tarihi: 2009
Doi Numarası: 10.1103/physrevlett.102.112501
Dergi Adı: PHYSICAL REVIEW LETTERS
Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
İstanbul Üniversitesi Adresli: Evet

Özet

The masses of the neutron-rich radon isotopes Rn223-229 have been determined for the first time, using the ISOLTRAP setup at CERN ISOLDE. In addition, this experiment marks the first discovery of a new nuclide, Rn-229, by Penning-trap mass measurement. The new, high-accuracy data allow a fine examination of the mass surface, via the valence-nucleon interaction delta V-pn. The results reveal intriguing behavior, possibly reflecting either a N=134 subshell closure or an octupolar deformation in this region.