Proton emission from an oblate nucleus 151Lu

M. G. Procter, D. M. Cullen, M. J. Taylor, G. A. Alharshan, L. S. Ferreira, E. Maglione, K. Auranen, T. Grahn, P. T. Greenlees, U. Jakobsson, R. Julin, A. Herzáň, J. Konki, M. Leino, J. Pakarinen, J. Partanen, P. Peura, P. Rahkila, P. Ruotsalainen, M. Sandzelius & 11 others J. Sarén, S. Stolze, C. Scholey, J. Sorri, J. Uusitalo, T. Braunroth, E. Ellinger, A. Dewald, D. T. Joss, C. McPeake, B. Saygi

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17 Citations (Scopus)

Abstract

Excited states in the proton-unbound nucleus 151Lu have been established using γ-ray coincidence techniques. The lifetime of the first excited state above the proton-emitting ground state has been measured using the recoil-distance Doppler-shift method combined with recoil-decay tagging. The experimental level scheme and extracted lifetime have been compared with state-of-the-art theoretical calculations based upon a non-adiabatic deformed Woods-Saxon potential. This comparison suggests that the proton-emitting ground state in 151Lu is mildly oblate with a deformation β=-0.11-0.05+0.02 and represents the best evidence to date for proton emission from an oblate nucleus.

Original languageEnglish
Pages (from-to)79-84
Number of pages6
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume725
Issue number1-3
DOIs
Publication statusPublished - 5 Jul 2013

Fingerprint

nuclei
protons
life (durability)
ground state
marking
excitation
rays
shift
decay

Keywords

  • A=151
  • B(E2)
  • Isomeric states
  • Lifetimes
  • Recoil-decay tagging
  • Recoil-distance Doppler-shift method

Cite this

Procter, M. G. ; Cullen, D. M. ; Taylor, M. J. ; Alharshan, G. A. ; Ferreira, L. S. ; Maglione, E. ; Auranen, K. ; Grahn, T. ; Greenlees, P. T. ; Jakobsson, U. ; Julin, R. ; Herzáň, A. ; Konki, J. ; Leino, M. ; Pakarinen, J. ; Partanen, J. ; Peura, P. ; Rahkila, P. ; Ruotsalainen, P. ; Sandzelius, M. ; Sarén, J. ; Stolze, S. ; Scholey, C. ; Sorri, J. ; Uusitalo, J. ; Braunroth, T. ; Ellinger, E. ; Dewald, A. ; Joss, D. T. ; McPeake, C. ; Saygi, B. / Proton emission from an oblate nucleus 151Lu. In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. 2013 ; Vol. 725, No. 1-3. pp. 79-84.
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abstract = "Excited states in the proton-unbound nucleus 151Lu have been established using γ-ray coincidence techniques. The lifetime of the first excited state above the proton-emitting ground state has been measured using the recoil-distance Doppler-shift method combined with recoil-decay tagging. The experimental level scheme and extracted lifetime have been compared with state-of-the-art theoretical calculations based upon a non-adiabatic deformed Woods-Saxon potential. This comparison suggests that the proton-emitting ground state in 151Lu is mildly oblate with a deformation β=-0.11-0.05+0.02 and represents the best evidence to date for proton emission from an oblate nucleus.",
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Procter, MG, Cullen, DM, Taylor, MJ, Alharshan, GA, Ferreira, LS, Maglione, E, Auranen, K, Grahn, T, Greenlees, PT, Jakobsson, U, Julin, R, Herzáň, A, Konki, J, Leino, M, Pakarinen, J, Partanen, J, Peura, P, Rahkila, P, Ruotsalainen, P, Sandzelius, M, Sarén, J, Stolze, S, Scholey, C, Sorri, J, Uusitalo, J, Braunroth, T, Ellinger, E, Dewald, A, Joss, DT, McPeake, C & Saygi, B 2013, 'Proton emission from an oblate nucleus 151Lu', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 725, no. 1-3, pp. 79-84. https://doi.org/10.1016/j.physletb.2013.06.045

Proton emission from an oblate nucleus 151Lu. / Procter, M. G.; Cullen, D. M.; Taylor, M. J.; Alharshan, G. A.; Ferreira, L. S.; Maglione, E.; Auranen, K.; Grahn, T.; Greenlees, P. T.; Jakobsson, U.; Julin, R.; Herzáň, A.; Konki, J.; Leino, M.; Pakarinen, J.; Partanen, J.; Peura, P.; Rahkila, P.; Ruotsalainen, P.; Sandzelius, M.; Sarén, J.; Stolze, S.; Scholey, C.; Sorri, J.; Uusitalo, J.; Braunroth, T.; Ellinger, E.; Dewald, A.; Joss, D. T.; McPeake, C.; Saygi, B.

In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 725, No. 1-3, 05.07.2013, p. 79-84.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - Proton emission from an oblate nucleus 151Lu

AU - Procter, M. G.

AU - Cullen, D. M.

AU - Taylor, M. J.

AU - Alharshan, G. A.

AU - Ferreira, L. S.

AU - Maglione, E.

AU - Auranen, K.

AU - Grahn, T.

AU - Greenlees, P. T.

AU - Jakobsson, U.

AU - Julin, R.

AU - Herzáň, A.

AU - Konki, J.

AU - Leino, M.

AU - Pakarinen, J.

AU - Partanen, J.

AU - Peura, P.

AU - Rahkila, P.

AU - Ruotsalainen, P.

AU - Sandzelius, M.

AU - Sarén, J.

AU - Stolze, S.

AU - Scholey, C.

AU - Sorri, J.

AU - Uusitalo, J.

AU - Braunroth, T.

AU - Ellinger, E.

AU - Dewald, A.

AU - Joss, D. T.

AU - McPeake, C.

AU - Saygi, B.

PY - 2013/7/5

Y1 - 2013/7/5

N2 - Excited states in the proton-unbound nucleus 151Lu have been established using γ-ray coincidence techniques. The lifetime of the first excited state above the proton-emitting ground state has been measured using the recoil-distance Doppler-shift method combined with recoil-decay tagging. The experimental level scheme and extracted lifetime have been compared with state-of-the-art theoretical calculations based upon a non-adiabatic deformed Woods-Saxon potential. This comparison suggests that the proton-emitting ground state in 151Lu is mildly oblate with a deformation β=-0.11-0.05+0.02 and represents the best evidence to date for proton emission from an oblate nucleus.

AB - Excited states in the proton-unbound nucleus 151Lu have been established using γ-ray coincidence techniques. The lifetime of the first excited state above the proton-emitting ground state has been measured using the recoil-distance Doppler-shift method combined with recoil-decay tagging. The experimental level scheme and extracted lifetime have been compared with state-of-the-art theoretical calculations based upon a non-adiabatic deformed Woods-Saxon potential. This comparison suggests that the proton-emitting ground state in 151Lu is mildly oblate with a deformation β=-0.11-0.05+0.02 and represents the best evidence to date for proton emission from an oblate nucleus.

KW - A=151

KW - B(E2)

KW - Isomeric states

KW - Lifetimes

KW - Recoil-decay tagging

KW - Recoil-distance Doppler-shift method

UR - http://www.scopus.com/inward/record.url?scp=84880698207&partnerID=8YFLogxK

U2 - 10.1016/j.physletb.2013.06.045

DO - 10.1016/j.physletb.2013.06.045

M3 - Article

VL - 725

SP - 79

EP - 84

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

SN - 0370-2693

IS - 1-3

ER -