Open AccessMass measurements on stable nuclides in the rare-earth region with the Penning-trap mass spectrometer TRIGA-TRAP
Author(s) -
Jens Ketelaer,
G. Audi,
Thomas Beyer,
Klaus Blaum,
M. Block,
R. B. Cakirli,
R. F. Casten,
C. Droese,
M. Dworschak,
Κ. Eberhardt,
M. Eibach,
F. Herfurth,
E. Minaya Ramirez,
Szilvia Nagy,
D. Neidherr,
W. Nörtershäuser,
C. Smorra,
M. Wang
Publication year - 2011
Publication title -
physical review. c. nuclear physics/physical review. c, nuclear physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.679
H-Index - 235
eISSN - 1089-490X
pISSN - 0556-2813
DOI - 10.1103/physrevc.84.014311
Subject(s) - penning trap , nuclide , atomic mass , nuclear physics , physics , mass spectrometry , atomic physics , triga , neutron , electron , research reactor , quantum mechanics
The masses of 15 stable nuclides in the rare-earth region have been measured with the Penning-trap mass spectrometer TRIGA-TRAP. This is the first series of absolute mass measurements linking these nuclides to the atomic-mass standard (12)C. Previously, nuclear reaction studies almost exclusively determined the literature values of these masses in the Atomic-Mass Evaluation. The TRIGA-TRAP results show deviations on the order of 3-4 standard deviations from the latest published values of the Atomic-Mass Evaluation 2003 for some cases. However, the binding-energy differences that are important for nuclear structure studies have been confirmed and improved. The new masses are discussed in the context of valence proton-neutron interactions using double differences of binding energies, delta V(pn) (Z, N)