Probing isospin symmetry in the ( 50 Fe, 50 Mn, 50 Cr) isobaric triplet via electromagnetic transition rates

M.M. Giles, B.S. Nara Singh, L. Barber, D.M. Cullen, M.J. Mallaburn, M. Beckers, A. Blazhev, T. Braunroth, A. Dewald, C. Fransen, A. Goldkuhle, J. Jolie, F. Mammes, C. Müller-Gatermann, D. Wolk, K.O. Zell, S.M. Lenzi, A. Poves

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Abstract

Lifetimes of the T=1 isobaric analog Iπ=2+states in 50Mn and 50Cr have been measured simultaneously by employing the recoil distance Doppler-shift ({RDDS}) technique. The states were populated in a fusion-evaporation reaction with a 12C beam on a 40Ca target. An analysis of the data and the calculations from the present work, together with the available B(E2:2+→0+) data of the isobaric analog states in 50Fe and 50Cr, have been used to study isospin symmetry in the three A=50 isobaric nuclei. Shell-model calculations reproduce the magnitudes as well as the increasing trend of the B(E2) data with increasing Z. In order to draw a firm conclusion on the level of isospin mixing in the triplet, a new precision measurement of the 2+→0+ transition rate in 50 Fe will be required.
Original languageEnglish
Article number044317
Number of pages8
JournalPhysical Review C
Volume99
Issue number4
DOIs
Publication statusPublished - 26 Apr 2019
Externally publishedYes

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analogs
electromagnetism
symmetry
fusion
evaporation
trends
life (durability)
nuclei
shift

Keywords

  • Nuclear structure
  • isospin symmetry

Cite this

Giles, M.M. ; Nara Singh, B.S. ; Barber, L. ; Cullen, D.M. ; Mallaburn, M.J. ; Beckers, M. ; Blazhev, A. ; Braunroth, T. ; Dewald, A. ; Fransen, C. ; Goldkuhle, A. ; Jolie, J. ; Mammes, F. ; Müller-Gatermann, C. ; Wolk, D. ; Zell, K.O. ; Lenzi, S.M. ; Poves, A. / Probing isospin symmetry in the ( 50 Fe, 50 Mn, 50 Cr) isobaric triplet via electromagnetic transition rates. In: Physical Review C. 2019 ; Vol. 99, No. 4.
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title = "Probing isospin symmetry in the ( 50 Fe, 50 Mn, 50 Cr) isobaric triplet via electromagnetic transition rates",
abstract = "Lifetimes of the T=1 isobaric analog Iπ=2+states in 50Mn and 50Cr have been measured simultaneously by employing the recoil distance Doppler-shift ({RDDS}) technique. The states were populated in a fusion-evaporation reaction with a 12C beam on a 40Ca target. An analysis of the data and the calculations from the present work, together with the available B(E2:2+→0+) data of the isobaric analog states in 50Fe and 50Cr, have been used to study isospin symmetry in the three A=50 isobaric nuclei. Shell-model calculations reproduce the magnitudes as well as the increasing trend of the B(E2) data with increasing Z. In order to draw a firm conclusion on the level of isospin mixing in the triplet, a new precision measurement of the 2+→0+ transition rate in 50 Fe will be required.",
keywords = "Nuclear structure, isospin symmetry",
author = "M.M. Giles and {Nara Singh}, B.S. and L. Barber and D.M. Cullen and M.J. Mallaburn and M. Beckers and A. Blazhev and T. Braunroth and A. Dewald and C. Fransen and A. Goldkuhle and J. Jolie and F. Mammes and C. M{\"u}ller-Gatermann and D. Wolk and K.O. Zell and S.M. Lenzi and A. Poves",
year = "2019",
month = "4",
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language = "English",
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Giles, MM, Nara Singh, BS, Barber, L, Cullen, DM, Mallaburn, MJ, Beckers, M, Blazhev, A, Braunroth, T, Dewald, A, Fransen, C, Goldkuhle, A, Jolie, J, Mammes, F, Müller-Gatermann, C, Wolk, D, Zell, KO, Lenzi, SM & Poves, A 2019, 'Probing isospin symmetry in the ( 50 Fe, 50 Mn, 50 Cr) isobaric triplet via electromagnetic transition rates' Physical Review C, vol. 99, no. 4, 044317. https://doi.org/10.1103/PhysRevC.99.044317

Probing isospin symmetry in the ( 50 Fe, 50 Mn, 50 Cr) isobaric triplet via electromagnetic transition rates. / Giles, M.M.; Nara Singh, B.S.; Barber, L.; Cullen, D.M.; Mallaburn, M.J.; Beckers, M.; Blazhev, A.; Braunroth, T.; Dewald, A.; Fransen, C.; Goldkuhle, A.; Jolie, J.; Mammes, F.; Müller-Gatermann, C.; Wolk, D.; Zell, K.O.; Lenzi, S.M.; Poves, A.

In: Physical Review C, Vol. 99, No. 4, 044317, 26.04.2019.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Probing isospin symmetry in the ( 50 Fe, 50 Mn, 50 Cr) isobaric triplet via electromagnetic transition rates

AU - Giles, M.M.

AU - Nara Singh, B.S.

AU - Barber, L.

AU - Cullen, D.M.

AU - Mallaburn, M.J.

AU - Beckers, M.

AU - Blazhev, A.

AU - Braunroth, T.

AU - Dewald, A.

AU - Fransen, C.

AU - Goldkuhle, A.

AU - Jolie, J.

AU - Mammes, F.

AU - Müller-Gatermann, C.

AU - Wolk, D.

AU - Zell, K.O.

AU - Lenzi, S.M.

AU - Poves, A.

PY - 2019/4/26

Y1 - 2019/4/26

N2 - Lifetimes of the T=1 isobaric analog Iπ=2+states in 50Mn and 50Cr have been measured simultaneously by employing the recoil distance Doppler-shift ({RDDS}) technique. The states were populated in a fusion-evaporation reaction with a 12C beam on a 40Ca target. An analysis of the data and the calculations from the present work, together with the available B(E2:2+→0+) data of the isobaric analog states in 50Fe and 50Cr, have been used to study isospin symmetry in the three A=50 isobaric nuclei. Shell-model calculations reproduce the magnitudes as well as the increasing trend of the B(E2) data with increasing Z. In order to draw a firm conclusion on the level of isospin mixing in the triplet, a new precision measurement of the 2+→0+ transition rate in 50 Fe will be required.

AB - Lifetimes of the T=1 isobaric analog Iπ=2+states in 50Mn and 50Cr have been measured simultaneously by employing the recoil distance Doppler-shift ({RDDS}) technique. The states were populated in a fusion-evaporation reaction with a 12C beam on a 40Ca target. An analysis of the data and the calculations from the present work, together with the available B(E2:2+→0+) data of the isobaric analog states in 50Fe and 50Cr, have been used to study isospin symmetry in the three A=50 isobaric nuclei. Shell-model calculations reproduce the magnitudes as well as the increasing trend of the B(E2) data with increasing Z. In order to draw a firm conclusion on the level of isospin mixing in the triplet, a new precision measurement of the 2+→0+ transition rate in 50 Fe will be required.

KW - Nuclear structure

KW - isospin symmetry

U2 - 10.1103/PhysRevC.99.044317

DO - 10.1103/PhysRevC.99.044317

M3 - Article

VL - 99

JO - Physical Review C

JF - Physical Review C

SN - 2469-9985

IS - 4

M1 - 044317

ER -