On the enhanced E1 transitions in the K = 3/2 parity doublet band in 223Ra

H. Mach, A. Lindroth, E. Ruchowska, J. Kvasil, B. Fogelberg, K. Gulda, A. J. Aas, M. J. G. Borge, I. S. Grant, E. Hagebø, W. Kurcewicz, T. Martinez, B. Rubio, J. F. Smith, K. Steffensen, J. L. Tain, O. Tengblad, T. F. Thorsteinsen

Research output: Contribution to journalArticle

Abstract

We have applied the fast timing βγγ(t)βγγ(t) technique to remeasure lifetimes of selected states in 223Ra populated in the β−β− decay of 223Fr. T1/2=587(12)T1/2=587(12) ps and 210(13)ps have been obtained for the 3/2−3/2− and 5/2−5/2− states at 50.1 and 79.7 keV, that are more accurate than the previous values of 630(70)ps and 166(55)ps, respectively. Our |D0||D0| value of 0.155(10)e·fm obtained for the K=3/2K=3/2 configuration together with the available values of |D0||D0| for the K=1/2K=1/2 and K=5/2K=5/2 parity doublet bands establish the configuration dependence of |D0||D0| at low spins in this nucleus. Results of theoretical calculations performed for 223Ra, using the quasiparticle-phonon model (QPM) with inclusion of the Coriolis coupling, reasonably well reproduce octupole correlations in this nucleus.
Original languageEnglish
Article number172
JournalThe European Physical Journal A
Volume52
Issue number6
DOIs
Publication statusPublished - 24 Jun 2016

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parity
nuclei
time measurement
inclusions
life (durability)
configurations

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Mach, H., Lindroth, A., Ruchowska, E., Kvasil, J., Fogelberg, B., Gulda, K., ... Thorsteinsen, T. F. (2016). On the enhanced E1 transitions in the K = 3/2 parity doublet band in 223Ra. The European Physical Journal A, 52(6), [172]. https://doi.org/10.1140/epja/i2016-16172-4
Mach, H. ; Lindroth, A. ; Ruchowska, E. ; Kvasil, J. ; Fogelberg, B. ; Gulda, K. ; Aas, A. J. ; Borge, M. J. G. ; Grant, I. S. ; Hagebø, E. ; Kurcewicz, W. ; Martinez, T. ; Rubio, B. ; Smith, J. F. ; Steffensen, K. ; Tain, J. L. ; Tengblad, O. ; Thorsteinsen, T. F. / On the enhanced E1 transitions in the K = 3/2 parity doublet band in 223Ra. In: The European Physical Journal A. 2016 ; Vol. 52, No. 6.
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title = "On the enhanced E1 transitions in the K = 3/2 parity doublet band in 223Ra",
abstract = "We have applied the fast timing βγγ(t)βγγ(t) technique to remeasure lifetimes of selected states in 223Ra populated in the β−β− decay of 223Fr. T1/2=587(12)T1/2=587(12) ps and 210(13)ps have been obtained for the 3/2−3/2− and 5/2−5/2− states at 50.1 and 79.7 keV, that are more accurate than the previous values of 630(70)ps and 166(55)ps, respectively. Our |D0||D0| value of 0.155(10)e·fm obtained for the K=3/2K=3/2 configuration together with the available values of |D0||D0| for the K=1/2K=1/2 and K=5/2K=5/2 parity doublet bands establish the configuration dependence of |D0||D0| at low spins in this nucleus. Results of theoretical calculations performed for 223Ra, using the quasiparticle-phonon model (QPM) with inclusion of the Coriolis coupling, reasonably well reproduce octupole correlations in this nucleus.",
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Mach, H, Lindroth, A, Ruchowska, E, Kvasil, J, Fogelberg, B, Gulda, K, Aas, AJ, Borge, MJG, Grant, IS, Hagebø, E, Kurcewicz, W, Martinez, T, Rubio, B, Smith, JF, Steffensen, K, Tain, JL, Tengblad, O & Thorsteinsen, TF 2016, 'On the enhanced E1 transitions in the K = 3/2 parity doublet band in 223Ra', The European Physical Journal A, vol. 52, no. 6, 172. https://doi.org/10.1140/epja/i2016-16172-4

On the enhanced E1 transitions in the K = 3/2 parity doublet band in 223Ra. / Mach, H.; Lindroth, A.; Ruchowska, E.; Kvasil, J.; Fogelberg, B.; Gulda, K.; Aas, A. J.; Borge, M. J. G.; Grant, I. S.; Hagebø, E.; Kurcewicz, W.; Martinez, T.; Rubio, B.; Smith, J. F.; Steffensen, K.; Tain, J. L.; Tengblad, O.; Thorsteinsen, T. F.

In: The European Physical Journal A, Vol. 52, No. 6, 172, 24.06.2016.

Research output: Contribution to journalArticle

TY - JOUR

T1 - On the enhanced E1 transitions in the K = 3/2 parity doublet band in 223Ra

AU - Mach, H.

AU - Lindroth, A.

AU - Ruchowska, E.

AU - Kvasil, J.

AU - Fogelberg, B.

AU - Gulda, K.

AU - Aas, A. J.

AU - Borge, M. J. G.

AU - Grant, I. S.

AU - Hagebø, E.

AU - Kurcewicz, W.

AU - Martinez, T.

AU - Rubio, B.

AU - Smith, J. F.

AU - Steffensen, K.

AU - Tain, J. L.

AU - Tengblad, O.

AU - Thorsteinsen, T. F.

PY - 2016/6/24

Y1 - 2016/6/24

N2 - We have applied the fast timing βγγ(t)βγγ(t) technique to remeasure lifetimes of selected states in 223Ra populated in the β−β− decay of 223Fr. T1/2=587(12)T1/2=587(12) ps and 210(13)ps have been obtained for the 3/2−3/2− and 5/2−5/2− states at 50.1 and 79.7 keV, that are more accurate than the previous values of 630(70)ps and 166(55)ps, respectively. Our |D0||D0| value of 0.155(10)e·fm obtained for the K=3/2K=3/2 configuration together with the available values of |D0||D0| for the K=1/2K=1/2 and K=5/2K=5/2 parity doublet bands establish the configuration dependence of |D0||D0| at low spins in this nucleus. Results of theoretical calculations performed for 223Ra, using the quasiparticle-phonon model (QPM) with inclusion of the Coriolis coupling, reasonably well reproduce octupole correlations in this nucleus.

AB - We have applied the fast timing βγγ(t)βγγ(t) technique to remeasure lifetimes of selected states in 223Ra populated in the β−β− decay of 223Fr. T1/2=587(12)T1/2=587(12) ps and 210(13)ps have been obtained for the 3/2−3/2− and 5/2−5/2− states at 50.1 and 79.7 keV, that are more accurate than the previous values of 630(70)ps and 166(55)ps, respectively. Our |D0||D0| value of 0.155(10)e·fm obtained for the K=3/2K=3/2 configuration together with the available values of |D0||D0| for the K=1/2K=1/2 and K=5/2K=5/2 parity doublet bands establish the configuration dependence of |D0||D0| at low spins in this nucleus. Results of theoretical calculations performed for 223Ra, using the quasiparticle-phonon model (QPM) with inclusion of the Coriolis coupling, reasonably well reproduce octupole correlations in this nucleus.

U2 - 10.1140/epja/i2016-16172-4

DO - 10.1140/epja/i2016-16172-4

M3 - Article

VL - 52

JO - The European Physical Journal A

JF - The European Physical Journal A

SN - 1434-6001

IS - 6

M1 - 172

ER -

Mach H, Lindroth A, Ruchowska E, Kvasil J, Fogelberg B, Gulda K et al. On the enhanced E1 transitions in the K = 3/2 parity doublet band in 223Ra. The European Physical Journal A. 2016 Jun 24;52(6). 172. https://doi.org/10.1140/epja/i2016-16172-4