Excited states and reduced transition probabilities in Os-168

T. Grahn; S. Stolze; D.T. Joss; R.D. Page; B. Sayğı; D. O'Donnell; M. Akmali; K. Andgren; L. Bianco; D. M. Cullen; A. Dewald; P.T. Greenlees; K. Heyde; H. Iwasaki; U. Jakobsson; P. Jones; D. S. Judson; R. Julin; S. Juutinen; S. Ketelhut; M. Leino; N  Lumley; P. J. R. Mason; O. Möller; K. Nomura; M. Nyman; A. Petts; P. Peura; N. Pietralla; Th. Pissulla; P. Rahkila; P. J. Sapple; J. Sarén; C. Scholey; J. Simpson; J. Sorri; P. D. Stevenson; J. Uusitalo; H.V. Watkins; J. L. Wood

doi:10.1103/PhysRevC.94.044327

Excited states and reduced transition probabilities in Os-168

T. Grahn, S. Stolze, D.T. Joss, R.D. Page, B. Sayğı, D. O'Donnell, M. Akmali, K. Andgren, L. Bianco, D. M. Cullen, A. Dewald, P.T. Greenlees, K. Heyde, H. Iwasaki, U. Jakobsson, P. Jones, D. S. Judson, R. Julin, S. Juutinen, S. KetelhutM. Leino, N Lumley, P. J. R. Mason, O. Möller, K. Nomura, M. Nyman, A. Petts, P. Peura, N. Pietralla, Th. Pissulla, P. Rahkila, P. J. Sapple, J. Sarén, C. Scholey, J. Simpson, J. Sorri, P. D. Stevenson, J. Uusitalo, H.V. Watkins, J. L. Wood

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Abstract

The level scheme of the neutron-deficient nuclide 168Os has been extended and mean lifetimes of excited states have been measured by the recoil distance Doppler-shift method using the JUROGAM γ-ray spectrometer in conjunction with the IKP Köln plunger device. The 168Osγ rays were measured in delayed coincidence with recoiling fusion-evaporation residues detected at the focal plane of the RITU gas-filled separator. The ratio of reduced transition probabilities B(E2;4+1→2+1)/B(E2;2+1→0+1) is measured to be 0.34(18), which is very unusual for collective band structures and cannot be reproduced by interacting boson model (IBM-2) calculations based on the SkM* energy-density functional.

Original language	English
Article number	044327
Journal	Physical Review C
Volume	94
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevC.94.044327
Publication status	Published - 28 Oct 2016
Externally published	Yes

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Grahn, T., Stolze, S., Joss, D. T., Page, R. D., Sayğı, B., O'Donnell, D., Akmali, M., Andgren, K., Bianco, L., Cullen, D. M., Dewald, A., Greenlees, P. T., Heyde, K., Iwasaki, H., Jakobsson, U., Jones, P., Judson, D. S., Julin, R., Juutinen, S., ... Wood, J. L. (2016). Excited states and reduced transition probabilities in Os-168. Physical Review C, 94(4), Article 044327 . https://doi.org/10.1103/PhysRevC.94.044327

@article{aa9a5faed9264aadb2081a4de6e6a863,

title = "Excited states and reduced transition probabilities in Os-168",

abstract = "The level scheme of the neutron-deficient nuclide 168Os has been extended and mean lifetimes of excited states have been measured by the recoil distance Doppler-shift method using the JUROGAM γ-ray spectrometer in conjunction with the IKP K{\"o}ln plunger device. The 168Osγ rays were measured in delayed coincidence with recoiling fusion-evaporation residues detected at the focal plane of the RITU gas-filled separator. The ratio of reduced transition probabilities B(E2;4+1→2+1)/B(E2;2+1→0+1) is measured to be 0.34(18), which is very unusual for collective band structures and cannot be reproduced by interacting boson model (IBM-2) calculations based on the SkM* energy-density functional.",

author = "T. Grahn and S. Stolze and D.T. Joss and R.D. Page and B. Sayğı and D. O'Donnell and M. Akmali and K. Andgren and L. Bianco and Cullen, {D. M.} and A. Dewald and P.T. Greenlees and K. Heyde and H. Iwasaki and U. Jakobsson and P. Jones and Judson, {D. S.} and R. Julin and S. Juutinen and S. Ketelhut and M. Leino and N Lumley and Mason, {P. J. R.} and O. M{\"o}ller and K. Nomura and M. Nyman and A. Petts and P. Peura and N. Pietralla and Th. Pissulla and P. Rahkila and Sapple, {P. J.} and J. Sar{\'e}n and C. Scholey and J. Simpson and J. Sorri and Stevenson, {P. D.} and J. Uusitalo and H.V. Watkins and Wood, {J. L.}",

year = "2016",

month = oct,

day = "28",

doi = "10.1103/PhysRevC.94.044327",

language = "English",

volume = "94",

journal = "Physical Review C",

issn = "2469-9985",

publisher = "American Physical Society",

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Grahn, T, Stolze, S, Joss, DT, Page, RD, Sayğı, B, O'Donnell, D, Akmali, M, Andgren, K, Bianco, L, Cullen, DM, Dewald, A, Greenlees, PT, Heyde, K, Iwasaki, H, Jakobsson, U, Jones, P, Judson, DS, Julin, R, Juutinen, S, Ketelhut, S, Leino, M, Lumley, N, Mason, PJR, Möller, O, Nomura, K, Nyman, M, Petts, A, Peura, P, Pietralla, N, Pissulla, T, Rahkila, P, Sapple, PJ, Sarén, J, Scholey, C, Simpson, J, Sorri, J, Stevenson, PD, Uusitalo, J, Watkins, HV & Wood, JL 2016, 'Excited states and reduced transition probabilities in Os-168', Physical Review C, vol. 94, no. 4, 044327 . https://doi.org/10.1103/PhysRevC.94.044327

TY - JOUR

T1 - Excited states and reduced transition probabilities in Os-168

AU - Grahn, T.

AU - Stolze, S.

AU - Joss, D.T.

AU - Page, R.D.

AU - Sayğı, B.

AU - O'Donnell, D.

AU - Akmali, M.

AU - Andgren, K.

AU - Bianco, L.

AU - Cullen, D. M.

AU - Dewald, A.

AU - Greenlees, P.T.

AU - Heyde, K.

AU - Iwasaki, H.

AU - Jakobsson, U.

AU - Jones, P.

AU - Judson, D. S.

AU - Julin, R.

AU - Juutinen, S.

AU - Ketelhut, S.

AU - Leino, M.

AU - Lumley, N

AU - Mason, P. J. R.

AU - Möller, O.

AU - Nomura, K.

AU - Nyman, M.

AU - Petts, A.

AU - Peura, P.

AU - Pietralla, N.

AU - Pissulla, Th.

AU - Rahkila, P.

AU - Sapple, P. J.

AU - Sarén, J.

AU - Scholey, C.

AU - Simpson, J.

AU - Sorri, J.

AU - Stevenson, P. D.

AU - Uusitalo, J.

AU - Watkins, H.V.

AU - Wood, J. L.

PY - 2016/10/28

Y1 - 2016/10/28

N2 - The level scheme of the neutron-deficient nuclide 168Os has been extended and mean lifetimes of excited states have been measured by the recoil distance Doppler-shift method using the JUROGAM γ-ray spectrometer in conjunction with the IKP Köln plunger device. The 168Osγ rays were measured in delayed coincidence with recoiling fusion-evaporation residues detected at the focal plane of the RITU gas-filled separator. The ratio of reduced transition probabilities B(E2;4+1→2+1)/B(E2;2+1→0+1) is measured to be 0.34(18), which is very unusual for collective band structures and cannot be reproduced by interacting boson model (IBM-2) calculations based on the SkM* energy-density functional.

AB - The level scheme of the neutron-deficient nuclide 168Os has been extended and mean lifetimes of excited states have been measured by the recoil distance Doppler-shift method using the JUROGAM γ-ray spectrometer in conjunction with the IKP Köln plunger device. The 168Osγ rays were measured in delayed coincidence with recoiling fusion-evaporation residues detected at the focal plane of the RITU gas-filled separator. The ratio of reduced transition probabilities B(E2;4+1→2+1)/B(E2;2+1→0+1) is measured to be 0.34(18), which is very unusual for collective band structures and cannot be reproduced by interacting boson model (IBM-2) calculations based on the SkM* energy-density functional.

U2 - 10.1103/PhysRevC.94.044327

DO - 10.1103/PhysRevC.94.044327

M3 - Article

SN - 2469-9985

VL - 94

JO - Physical Review C

JF - Physical Review C

IS - 4

M1 - 044327

ER -

Excited states and reduced transition probabilities in Os-168

Abstract

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