High-precision QEC-value measurement of the superallowed β+ emitter 22Mg and an ab initio evaluation of the A = 22 isobaric triplet

M. P. Reiter; K. G. Leach; O M Drozdowski; S. R. Stroberg; J D Holt; C. Andreoiu; C. Babcock; B Barquest; M Brodeur; A  Finlay; M Foster; A. T. Gallant; G. Gwinner; R. Klawitter; B. Kootte; A. A. Kwiatkowski; Y Lan; D. Lascar; E  Leistenschneider; A Lennarz; S Paul; R. Steinbrügge; R I Thompson; M. E. Wieser; J. Dilling

doi:10.1103/PhysRevC.96.052501

High-precision QEC-value measurement of the superallowed β+ emitter 22Mg and an ab initio evaluation of the A = 22 isobaric triplet

M. P. Reiter, K. G. Leach, O M Drozdowski, S. R. Stroberg, J D Holt, C. Andreoiu, C. Babcock, B Barquest, M Brodeur, A Finlay, M Foster, A. T. Gallant, G. Gwinner, R. Klawitter, B. Kootte, A. A. Kwiatkowski, Y Lan, D. Lascar, E Leistenschneider, A LennarzS Paul, R. Steinbrügge, R I Thompson, M. E. Wieser, J. Dilling

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract

A direct QEC-value measurement of the superallowed β+ emitter 22Mg was performed using TRIUMF’s Ion Trap for Atomic and Nuclear Science. The direct ground-state to ground-state atomic mass difference between 22Mg and 22Na was determined to be QEC = 4781.40(22) keV, representing the most precise single measurement of this quantity to date. In a continued push toward calculating superallowed isospin-symmetrybreaking corrections from first principles, ab initio shell-model calculations of the A = 22 isobaric multiplet mass equation are also presented for the first time using the valence-space in-medium similarity renormalization group formalism. With particular starting two- and three-nucleon forces, this approach demonstrates good agreement
with the experimental data.

Original language	English
Journal	Physical Review C
Volume	96
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevC.96.052501
Publication status	Published - 6 Nov 2017

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Reiter, M. P., Leach, K. G., Drozdowski, O. M., Stroberg, S. R., Holt, J. D., Andreoiu, C., Babcock, C., Barquest, B., Brodeur, M., Finlay, A., Foster, M., Gallant, A. T., Gwinner, G., Klawitter, R., Kootte, B., Kwiatkowski, A. A., Lan, Y., Lascar, D., Leistenschneider, E., ... Dilling, J. (2017). High-precision QEC-value measurement of the superallowed β+ emitter 22Mg and an ab initio evaluation of the A = 22 isobaric triplet. Physical Review C, 96(5). https://doi.org/10.1103/PhysRevC.96.052501

@article{f740f8239a344745abb5f5f8cbd0463d,

title = "High-precision QEC-value measurement of the superallowed β+ emitter 22Mg and an ab initio evaluation of the A = 22 isobaric triplet",

abstract = "A direct QEC-value measurement of the superallowed β+ emitter 22Mg was performed using TRIUMF{\textquoteright}s Ion Trap for Atomic and Nuclear Science. The direct ground-state to ground-state atomic mass difference between 22Mg and 22Na was determined to be QEC = 4781.40(22) keV, representing the most precise single measurement of this quantity to date. In a continued push toward calculating superallowed isospin-symmetrybreaking corrections from first principles, ab initio shell-model calculations of the A = 22 isobaric multiplet mass equation are also presented for the first time using the valence-space in-medium similarity renormalization group formalism. With particular starting two- and three-nucleon forces, this approach demonstrates good agreementwith the experimental data.",

author = "Reiter, {M. P.} and Leach, {K. G.} and Drozdowski, {O M} and Stroberg, {S. R.} and Holt, {J D} and C. Andreoiu and C. Babcock and B Barquest and M Brodeur and A Finlay and M Foster and Gallant, {A. T.} and G. Gwinner and R. Klawitter and B. Kootte and Kwiatkowski, {A. A.} and Y Lan and D. Lascar and E Leistenschneider and A Lennarz and S Paul and R. Steinbr{\"u}gge and Thompson, {R I} and Wieser, {M. E.} and J. Dilling",

note = "SCOAP3 journal.",

year = "2017",

month = nov,

day = "6",

doi = "10.1103/PhysRevC.96.052501",

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Reiter, MP, Leach, KG, Drozdowski, OM, Stroberg, SR, Holt, JD, Andreoiu, C, Babcock, C, Barquest, B, Brodeur, M, Finlay, A, Foster, M, Gallant, AT, Gwinner, G, Klawitter, R, Kootte, B, Kwiatkowski, AA, Lan, Y, Lascar, D, Leistenschneider, E, Lennarz, A, Paul, S, Steinbrügge, R, Thompson, RI, Wieser, ME & Dilling, J 2017, 'High-precision QEC-value measurement of the superallowed β+ emitter 22Mg and an ab initio evaluation of the A = 22 isobaric triplet', Physical Review C, vol. 96, no. 5. https://doi.org/10.1103/PhysRevC.96.052501

TY - JOUR

T1 - High-precision QEC-value measurement of the superallowed β+ emitter 22Mg and an ab initio evaluation of the A = 22 isobaric triplet

AU - Reiter, M. P.

AU - Leach, K. G.

AU - Drozdowski, O M

AU - Stroberg, S. R.

AU - Holt, J D

AU - Andreoiu, C.

AU - Babcock, C.

AU - Barquest, B

AU - Brodeur, M

AU - Finlay, A

AU - Foster, M

AU - Gallant, A. T.

AU - Gwinner, G.

AU - Klawitter, R.

AU - Kootte, B.

AU - Kwiatkowski, A. A.

AU - Lan, Y

AU - Lascar, D.

AU - Leistenschneider, E

AU - Lennarz, A

AU - Paul, S

AU - Steinbrügge, R.

AU - Thompson, R I

AU - Wieser, M. E.

AU - Dilling, J.

N1 - SCOAP3 journal.

PY - 2017/11/6

Y1 - 2017/11/6

N2 - A direct QEC-value measurement of the superallowed β+ emitter 22Mg was performed using TRIUMF’s Ion Trap for Atomic and Nuclear Science. The direct ground-state to ground-state atomic mass difference between 22Mg and 22Na was determined to be QEC = 4781.40(22) keV, representing the most precise single measurement of this quantity to date. In a continued push toward calculating superallowed isospin-symmetrybreaking corrections from first principles, ab initio shell-model calculations of the A = 22 isobaric multiplet mass equation are also presented for the first time using the valence-space in-medium similarity renormalization group formalism. With particular starting two- and three-nucleon forces, this approach demonstrates good agreementwith the experimental data.

AB - A direct QEC-value measurement of the superallowed β+ emitter 22Mg was performed using TRIUMF’s Ion Trap for Atomic and Nuclear Science. The direct ground-state to ground-state atomic mass difference between 22Mg and 22Na was determined to be QEC = 4781.40(22) keV, representing the most precise single measurement of this quantity to date. In a continued push toward calculating superallowed isospin-symmetrybreaking corrections from first principles, ab initio shell-model calculations of the A = 22 isobaric multiplet mass equation are also presented for the first time using the valence-space in-medium similarity renormalization group formalism. With particular starting two- and three-nucleon forces, this approach demonstrates good agreementwith the experimental data.

U2 - 10.1103/PhysRevC.96.052501

DO - 10.1103/PhysRevC.96.052501

M3 - Article

VL - 96

JO - Physical Review C

JF - Physical Review C

SN - 2469-9985

IS - 5

ER -

High-precision QEC-value measurement of the superallowed β+ emitter 22Mg and an ab initio evaluation of the A = 22 isobaric triplet

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