The decay energy of the pure s-process nuclide ¹²³Te

详细信息    查看全文

• 作者：P. Filianin^a ; ^b ; ^{filianin@mpi-hd.mpg.de" class="auth_mail" title="E-mail the corresponding author} ; S. Schmidt^c ; ^d ; K. Blaum^a ; M. Block^d ; ^e ; ^f ; S. Eliseev^a ; F. Giacoppo^c ; ^f ; M. Goncharov^a ; F. Lautenschlaeger^c ; ^e ; Yu. Novikov^a ; ^b ; ^g ; K. Takahashi^a ; ^e
• 关键词：Atomic masses ; Penning-trap mass spectrometry ; Astrophysics
• 刊名：Physics Letters B
• 出版年：2016
• 出版时间：10 July 2016
• 年：2016
• 卷：758
• 期：Complete
• 页码：407-411
• 全文大小：873 K

文摘

A direct and high-precision measurement of the mass difference of ¹²³Te and ¹²³Sb has been performed with the Penning-trap mass spectrometer SHIPTRAP using the recently introduced phase-imaging ion-cyclotron-resonance technique. The obtained mass difference is 51.912(67) keV/c²$51.912(67)\text{keV}/c^2$. Using the masses of the neutral ground states and the energy difference between the ionic states an effective half-life of ¹²³Te has been estimated for various astrophysical conditions. A dramatic influence of the electron capture process on the decay properties of ¹²³Te in hot stellar conditions has been discussed.