Oblately deformed isomeric proton-emitting state in 151Lu

M. J. Taylor; David M Cullen; M. G. Procter; A. J. Smith; A. McFarlane; V. Twist; G. A. Alharshan; L. S. Ferreira; E. Maglione; K. Auranen; T. Grahn; P. T. Greenlees; K. Hauschild; A. Herzan; U. Jakobsson; R. Julin; S. Juutinen; S. Ketelhut; J. Konki; M. Leino; A. Lopez-Martens; J. Pakarinen; J. Partanen; P. Peura; P. Rahkila; S. Rinta-Antila; P. Ruotsalainen; M. Sandzelius; J. Saren; C. Scholey; J. Sorri; S. Stolze; J. Uusitalo; M. Doncel

doi:10.1103/PhysRevC.91.044322

Oblately deformed isomeric proton-emitting state in 151Lu

M. J. Taylor, David M Cullen, M. G. Procter, A. J. Smith, A. McFarlane, V. Twist, G. A. Alharshan, L. S. Ferreira, E. Maglione, K. Auranen, T. Grahn, P. T. Greenlees, K. Hauschild, A. Herzan, U. Jakobsson, R. Julin, S. Juutinen, S. Ketelhut, J. Konki, M. LeinoA. Lopez-Martens, J. Pakarinen, J. Partanen, P. Peura, P. Rahkila, S. Rinta-Antila, P. Ruotsalainen, M. Sandzelius, J. Saren, C. Scholey, J. Sorri, S. Stolze, J. Uusitalo, M. Doncel

Division of Cancer Sciences (L5)

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Abstract

Gamma rays from excited states feeding a proton-emitting isomeric-state in 151Lu have been observed for the first time. Comparison with state-of-the-art nonadiabatic quasiparticle calculations indicates an oblately deformed, 3/2+ proton-emitting state with a quadrupole deformation of β2 = −0.11. The calculations suggest an increase in quadrupole deformation, to β2 = −0.18, with increasing spin which is understood in terms of the mixing of Nilsson states at the Fermi surface. It is also shown that the proton decay half-life is consistent with that from a 3/2+ state with a quadrupole deformation of β2 = −0.12.

Original language	English
Article number	044322
Number of pages	6
Journal	Physical Review C (Nuclear Physics)
Volume	91
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevC.91.044322
Publication status	Published - 24 Apr 2015

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Manchester Cancer Research Centre

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Taylor, M. J., Cullen, D. M., Procter, M. G., Smith, A. J., McFarlane, A., Twist, V., Alharshan, G. A., Ferreira, L. S., Maglione, E., Auranen, K., Grahn, T., Greenlees, P. T., Hauschild, K., Herzan, A., Jakobsson, U., Julin, R., Juutinen, S., Ketelhut, S., Konki, J., ... Doncel, M. (2015). Oblately deformed isomeric proton-emitting state in 151Lu. Physical Review C (Nuclear Physics), 91(4), Article 044322. https://doi.org/10.1103/PhysRevC.91.044322

@article{8e88f4f781964e91badd549e6bbeeec3,

title = "Oblately deformed isomeric proton-emitting state in 151Lu",

abstract = "Gamma rays from excited states feeding a proton-emitting isomeric-state in 151Lu have been observed for the first time. Comparison with state-of-the-art nonadiabatic quasiparticle calculations indicates an oblately deformed, 3/2+ proton-emitting state with a quadrupole deformation of β2 = −0.11. The calculations suggest an increase in quadrupole deformation, to β2 = −0.18, with increasing spin which is understood in terms of the mixing of Nilsson states at the Fermi surface. It is also shown that the proton decay half-life is consistent with that from a 3/2+ state with a quadrupole deformation of β2 = −0.12.",

author = "Taylor, {M. J.} and Cullen, {David M} and Procter, {M. G.} and Smith, {A. J.} and A. McFarlane and V. Twist and Alharshan, {G. A.} and Ferreira, {L. S.} and E. Maglione and K. Auranen and T. Grahn and Greenlees, {P. T.} and K. Hauschild and A. Herzan and U. Jakobsson and R. Julin and S. Juutinen and S. Ketelhut and J. Konki and M. Leino and A. Lopez-Martens and J. Pakarinen and J. Partanen and P. Peura and P. Rahkila and S. Rinta-Antila and P. Ruotsalainen and M. Sandzelius and J. Saren and C. Scholey and J. Sorri and S. Stolze and J. Uusitalo and M. Doncel",

year = "2015",

month = apr,

day = "24",

doi = "10.1103/PhysRevC.91.044322",

language = "English",

volume = "91",

journal = "Physical Review C (Nuclear Physics)",

issn = "0556-2813",

publisher = "American Physical Society",

number = "4",

}

Taylor, MJ, Cullen, DM, Procter, MG, Smith, AJ, McFarlane, A, Twist, V, Alharshan, GA, Ferreira, LS, Maglione, E, Auranen, K, Grahn, T, Greenlees, PT, Hauschild, K, Herzan, A, Jakobsson, U, Julin, R, Juutinen, S, Ketelhut, S, Konki, J, Leino, M, Lopez-Martens, A, Pakarinen, J, Partanen, J, Peura, P, Rahkila, P, Rinta-Antila, S, Ruotsalainen, P, Sandzelius, M, Saren, J, Scholey, C, Sorri, J, Stolze, S, Uusitalo, J & Doncel, M 2015, 'Oblately deformed isomeric proton-emitting state in 151Lu', Physical Review C (Nuclear Physics), vol. 91, no. 4, 044322. https://doi.org/10.1103/PhysRevC.91.044322

TY - JOUR

T1 - Oblately deformed isomeric proton-emitting state in 151Lu

AU - Taylor, M. J.

AU - Cullen, David M

AU - Procter, M. G.

AU - Smith, A. J.

AU - McFarlane, A.

AU - Twist, V.

AU - Alharshan, G. A.

AU - Ferreira, L. S.

AU - Maglione, E.

AU - Auranen, K.

AU - Grahn, T.

AU - Greenlees, P. T.

AU - Hauschild, K.

AU - Herzan, A.

AU - Jakobsson, U.

AU - Julin, R.

AU - Juutinen, S.

AU - Ketelhut, S.

AU - Konki, J.

AU - Leino, M.

AU - Lopez-Martens, A.

AU - Pakarinen, J.

AU - Partanen, J.

AU - Peura, P.

AU - Rahkila, P.

AU - Rinta-Antila, S.

AU - Ruotsalainen, P.

AU - Sandzelius, M.

AU - Saren, J.

AU - Scholey, C.

AU - Sorri, J.

AU - Stolze, S.

AU - Uusitalo, J.

AU - Doncel, M.

PY - 2015/4/24

Y1 - 2015/4/24

N2 - Gamma rays from excited states feeding a proton-emitting isomeric-state in 151Lu have been observed for the first time. Comparison with state-of-the-art nonadiabatic quasiparticle calculations indicates an oblately deformed, 3/2+ proton-emitting state with a quadrupole deformation of β2 = −0.11. The calculations suggest an increase in quadrupole deformation, to β2 = −0.18, with increasing spin which is understood in terms of the mixing of Nilsson states at the Fermi surface. It is also shown that the proton decay half-life is consistent with that from a 3/2+ state with a quadrupole deformation of β2 = −0.12.

AB - Gamma rays from excited states feeding a proton-emitting isomeric-state in 151Lu have been observed for the first time. Comparison with state-of-the-art nonadiabatic quasiparticle calculations indicates an oblately deformed, 3/2+ proton-emitting state with a quadrupole deformation of β2 = −0.11. The calculations suggest an increase in quadrupole deformation, to β2 = −0.18, with increasing spin which is understood in terms of the mixing of Nilsson states at the Fermi surface. It is also shown that the proton decay half-life is consistent with that from a 3/2+ state with a quadrupole deformation of β2 = −0.12.

U2 - 10.1103/PhysRevC.91.044322

DO - 10.1103/PhysRevC.91.044322

M3 - Article

SN - 0556-2813

VL - 91

JO - Physical Review C (Nuclear Physics)

JF - Physical Review C (Nuclear Physics)

IS - 4

M1 - 044322

ER -

Oblately deformed isomeric proton-emitting state in 151Lu

Abstract

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