TY - JOUR
T1 - β -decay Q values among the A=50 Ti-V-Cr isobaric triplet and atomic masses of Ti 46,47,49,50, v 50,51, and Cr 50,52-54
AU - Kandegedara, R. M.E.B.
AU - Bollen, G.
AU - Eibach, M.
AU - Gamage, N. D.
AU - Gulyuz, K.
AU - Izzo, C.
AU - Redshaw, M.
AU - Ringle, R.
AU - Sandler, R.
AU - Valverde, A. A.
N1 - Funding Information:
This research was supported by Michigan State University and the Facility for Rare Isotope Beams, the National Science Foundation under Contracts No. PHY-1102511 and No. PHY-1307233, and the Central Michigan University Faculty Research and Creative Endeavors grant program. This material is based upon work supported by the US Department of Energy, Office of Science, Office of Nuclear Physics under Award No. DE-SC0015927. The work leading to this publication has also been supported by a DAAD P.R.I.M.E. fellowship with funding from the German Federal Ministry of Education and Research and the People Programme (Marie Curie Actions) of the European Union's Seventh Framework Programme (FP7/2007/2013) under REA Grant Agreement No. 605728.
Publisher Copyright:
© 2017 American Physical Society.
PY - 2017/10/20
Y1 - 2017/10/20
N2 - Using high-precision Penning trap mass spectrometry at the Low Energy Beam and Ion Trap facility at the National Superconducting Cyclotron Laboratory we have measured the Q values of the fourth-order forbidden β decay and electron capture of V50 and the double electron capture Q value of Cr50 with the results Qβ(V50)=1038.1(1) keV, QEC(V50)=2208.7(1) keV, and Q2EC(Cr50)=1170.5(1) keV. In addition, we have measured the atomic masses of Ti46,47,49,50,V50,51, and Cr50,52-54, reducing uncertainties by factors of up to three compared with the most recent atomic mass evaluation (Ame2016) [Chin. Phys. C 41, 030003 (2017)1674-113710.1088/1674-1137/41/3/030003]. Our results are in good agreement with Ame2016 for Ti46,47,49,50 and Cr50,54 and show deviations of up to ∼1keV(2.5σ) for V50,51 and Cr50,54.
AB - Using high-precision Penning trap mass spectrometry at the Low Energy Beam and Ion Trap facility at the National Superconducting Cyclotron Laboratory we have measured the Q values of the fourth-order forbidden β decay and electron capture of V50 and the double electron capture Q value of Cr50 with the results Qβ(V50)=1038.1(1) keV, QEC(V50)=2208.7(1) keV, and Q2EC(Cr50)=1170.5(1) keV. In addition, we have measured the atomic masses of Ti46,47,49,50,V50,51, and Cr50,52-54, reducing uncertainties by factors of up to three compared with the most recent atomic mass evaluation (Ame2016) [Chin. Phys. C 41, 030003 (2017)1674-113710.1088/1674-1137/41/3/030003]. Our results are in good agreement with Ame2016 for Ti46,47,49,50 and Cr50,54 and show deviations of up to ∼1keV(2.5σ) for V50,51 and Cr50,54.
UR - http://www.scopus.com/inward/record.url?scp=85032006705&partnerID=8YFLogxK
U2 - 10.1103/PhysRevC.96.044321
DO - 10.1103/PhysRevC.96.044321
M3 - Article
AN - SCOPUS:85032006705
SN - 2469-9985
VL - 96
JO - Physical Review C
JF - Physical Review C
IS - 4
M1 - 044321
ER -