https://doi.org/10.1140/epja/i2011-11129-9
Regular Article - Experimental Physics
Precision mass measurements of neutron-rich Y, Nb, Mo, Tc, Ru, Rh, and Pd isotopes
1
Department of Physics, University of Jyväskylä, Jyväskylä, P.O. B. 35 (YFL), FI-40014, Finland
2
CSIC, Instituto de Estructura de la Materia, Serrano 123, E-28006, Madrid, Spain
* e-mail: jani.j.hakala@jyu.fi
Received:
28
June
2011
Revised:
19
September
2011
Accepted:
29
September
2011
Published online:
25
October
2011
Direct mass measurements with typical uncertainties of 1-10keV have been performed for the first time for ten neutron-rich isotopes 102, 103Y , 108Nb , 111Mo , 113, 114Tc , 116Ru , 119Rh , and 121, 122Pd . The obtained mass data compared with the 2003 atomic-mass evaluation shows systematic overestimation of binding energies far from stability. The relationship between two-neutron separation energies, nuclear structure and shape changes has been investigated by comparing the experimental data with a theoretical calculation based on the Hartree-Fock-Bogoliubov approximation using modern energy density functionals.
© SIF, Springer-Verlag Berlin Heidelberg, 2011