TY - JOUR
T1 - Penning trap mass measurements utilizing highly charged ions as a path to benchmark isospin-symmetry breaking corrections in Rb 74
AU - Malbrunot-Ettenauer, S.
AU - Brunner, T.
AU - Chowdhury, U.
AU - Gallant, A. T.
AU - Simon, V. V.
AU - Brodeur, M.
AU - Chaudhuri, A.
AU - Mané, E.
AU - Simon, M. C.
AU - Andreoiu, C.
AU - Audi, G.
AU - Crespo López-Urrutia, J. R.
AU - Delheij, P.
AU - Gwinner, G.
AU - Lapierre, A.
AU - Lunney, D.
AU - Pearson, M. R.
AU - Ringle, R.
AU - Ullrich, J.
AU - Dilling, J.
N1 - Publisher Copyright:
© 2015 American Physical Society.
PY - 2015/4/13
Y1 - 2015/4/13
N2 - Penning trap mass measurements of neutron-deficient Rb isotopes have been performed at TRIUMF's Ion Trap for Atomic and Nuclear Science (TITAN) facility by utilizing highly charged ions (HCIs). As imperative for a new approach with significant gain in measurement precision, experimental procedures, and systematic uncertainties are discussed in detail. Among the investigated nuclides, the superallowed nuclear β emitter Rb74 will especially benefit from the advantage offered by HCI because the limited attainable precision owing to its short half-life (T1/2=65 ms) represents a challenge for conventional Penning trap mass spectrometry. Motivated by an updated QEC value for Rb74 of 10 416.8(3.9) keV and its large isospin-symmetry breaking corrections, we present a new test to benchmark the consistency between theoretical models of isospin-symmetry breaking corrections in superallowed decays, the conserved vector current hypothesis, and experimental data.
AB - Penning trap mass measurements of neutron-deficient Rb isotopes have been performed at TRIUMF's Ion Trap for Atomic and Nuclear Science (TITAN) facility by utilizing highly charged ions (HCIs). As imperative for a new approach with significant gain in measurement precision, experimental procedures, and systematic uncertainties are discussed in detail. Among the investigated nuclides, the superallowed nuclear β emitter Rb74 will especially benefit from the advantage offered by HCI because the limited attainable precision owing to its short half-life (T1/2=65 ms) represents a challenge for conventional Penning trap mass spectrometry. Motivated by an updated QEC value for Rb74 of 10 416.8(3.9) keV and its large isospin-symmetry breaking corrections, we present a new test to benchmark the consistency between theoretical models of isospin-symmetry breaking corrections in superallowed decays, the conserved vector current hypothesis, and experimental data.
UR - http://www.scopus.com/inward/record.url?scp=84928898548&partnerID=8YFLogxK
U2 - 10.1103/PhysRevC.91.045504
DO - 10.1103/PhysRevC.91.045504
M3 - Article
AN - SCOPUS:84928898548
SN - 0556-2813
VL - 91
JO - Physical Review C - Nuclear Physics
JF - Physical Review C - Nuclear Physics
IS - 4
M1 - 045504
ER -