Spectroscopy of the neutron-deficient nucleus Os-167(91)

D. O'Donnell; T. Grahn; D. T. Joss; J. Simpson; C. Scholey; K. Andgren; L. Bianco; B. Cederwall; D. M. Cullen; A. Dewald; E. Ganioglu; M. B. Gomez Hornillos; P. T. Greenlees; B. Hadinia; H. Iwasaki; U. Jakobsson; J. Jolie; P. Jones; D. S. Judson; R. Julin; S. Juutinen; S. Ketelhut; M. Labiche; M. Leino; N. M. Lumley; P. J. R. Mason; O. Möller; P. Nieminen; M. Nyman; R. D. Page; J. Pakarinen; E. S. Paul; M. Petri; A. Petts; P. Peura; N. Pietralla; Th. Pissulla; P. Rahkila; P. Ruotsalainen; M. Sandzelius; P. J. Sapple; J. Saren; J. Sorri; J. Thomson; J. Uusitalo; H. V. Watkins

doi:10.1103/PhysRevC.79.064309

Spectroscopy of the neutron-deficient nucleus Os-167(91)

D. O'Donnell, T. Grahn, D. T. Joss, J. Simpson, C. Scholey, K. Andgren, L. Bianco, B. Cederwall, D. M. Cullen, A. Dewald, E. Ganioglu, M. B. Gomez Hornillos, P. T. Greenlees, B. Hadinia, H. Iwasaki, U. Jakobsson, J. Jolie, P. Jones, D. S. Judson, R. JulinS. Juutinen, S. Ketelhut, M. Labiche, M. Leino, N. M. Lumley, P. J. R. Mason, O. Möller, P. Nieminen, M. Nyman, R. D. Page, J. Pakarinen, E. S. Paul, M. Petri, A. Petts, P. Peura, N. Pietralla, Th. Pissulla, P. Rahkila, P. Ruotsalainen, M. Sandzelius, P. J. Sapple, J. Saren, J. Sorri, J. Thomson, J. Uusitalo, H. V. Watkins

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

Excited states of the nucleus 167Os have been populated by the reaction 92Mo(78Kr,2pn). The JUROGAM γ-ray detector array has been used in conjunction with the RITU gas-filled separator and the GREAT spectrometer to observe prompt γ rays in coincidence with recoiling fusion-evaporation residues and their subsequent decay by α particle emission. By correlating prompt γ radiation with the characteristic α radioactivity of 167Os, it has been possible to extend the level scheme for this nucleus significantly. In particular, an extension of the yrast band and four previously unobserved bands are reported. In addition, the recoil distance Doppler-shift method was used to determine a lifetime of τ=20(4) ps for The Iπ=17/2+ state in 167Os. Hence, the level of collectivity and magnitude of deformation of the low spin yrast band of this nucleus is established.

Original language	English
Article number	064309
Journal	Physical Review C
Volume	79
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevC.79.064309
Publication status	Published - 10 Jun 2009
Externally published	Yes

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O'Donnell, D., Grahn, T., Joss, D. T., Simpson, J., Scholey, C., Andgren, K., Bianco, L., Cederwall, B., Cullen, D. M., Dewald, A., Ganioglu, E., Hornillos, M. B. G., Greenlees, P. T., Hadinia, B., Iwasaki, H., Jakobsson, U., Jolie, J., Jones, P., Judson, D. S., ... Watkins, H. V. (2009). Spectroscopy of the neutron-deficient nucleus Os-167(91). Physical Review C, 79(6), [064309]. https://doi.org/10.1103/PhysRevC.79.064309

@article{4890327f1bc64792a0c569f4c86bf99e,

title = "Spectroscopy of the neutron-deficient nucleus Os-167(91)",

abstract = "Excited states of the nucleus 167Os have been populated by the reaction 92Mo(78Kr,2pn). The JUROGAM γ-ray detector array has been used in conjunction with the RITU gas-filled separator and the GREAT spectrometer to observe prompt γ rays in coincidence with recoiling fusion-evaporation residues and their subsequent decay by α particle emission. By correlating prompt γ radiation with the characteristic α radioactivity of 167Os, it has been possible to extend the level scheme for this nucleus significantly. In particular, an extension of the yrast band and four previously unobserved bands are reported. In addition, the recoil distance Doppler-shift method was used to determine a lifetime of τ=20(4) ps for The Iπ=17/2+ state in 167Os. Hence, the level of collectivity and magnitude of deformation of the low spin yrast band of this nucleus is established.",

author = "D. O'Donnell and T. Grahn and Joss, {D. T.} and J. Simpson and C. Scholey and K. Andgren and L. Bianco and B. Cederwall and Cullen, {D. M.} and A. Dewald and E. Ganioglu and Hornillos, {M. B. Gomez} and Greenlees, {P. T.} and B. Hadinia and H. Iwasaki and U. Jakobsson and J. Jolie and P. Jones and Judson, {D. S.} and R. Julin and S. Juutinen and S. Ketelhut and M. Labiche and M. Leino and Lumley, {N. M.} and Mason, {P. J. R.} and O. M{\"o}ller and P. Nieminen and M. Nyman and Page, {R. D.} and J. Pakarinen and Paul, {E. S.} and M. Petri and A. Petts and P. Peura and N. Pietralla and Th. Pissulla and P. Rahkila and P. Ruotsalainen and M. Sandzelius and Sapple, {P. J.} and J. Saren and J. Sorri and J. Thomson and J. Uusitalo and Watkins, {H. V.}",

year = "2009",

month = jun,

day = "10",

doi = "10.1103/PhysRevC.79.064309",

language = "English",

volume = "79",

journal = "Physical Review C",

issn = "2469-9985",

publisher = "American Physical Society",

number = "6",

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O'Donnell, D, Grahn, T, Joss, DT, Simpson, J, Scholey, C, Andgren, K, Bianco, L, Cederwall, B, Cullen, DM, Dewald, A, Ganioglu, E, Hornillos, MBG, Greenlees, PT, Hadinia, B, Iwasaki, H, Jakobsson, U, Jolie, J, Jones, P, Judson, DS, Julin, R, Juutinen, S, Ketelhut, S, Labiche, M, Leino, M, Lumley, NM, Mason, PJR, Möller, O, Nieminen, P, Nyman, M, Page, RD, Pakarinen, J, Paul, ES, Petri, M, Petts, A, Peura, P, Pietralla, N, Pissulla, T, Rahkila, P, Ruotsalainen, P, Sandzelius, M, Sapple, PJ, Saren, J, Sorri, J, Thomson, J, Uusitalo, J & Watkins, HV 2009, 'Spectroscopy of the neutron-deficient nucleus Os-167(91)', Physical Review C, vol. 79, no. 6, 064309. https://doi.org/10.1103/PhysRevC.79.064309

TY - JOUR

T1 - Spectroscopy of the neutron-deficient nucleus Os-167(91)

AU - O'Donnell, D.

AU - Grahn, T.

AU - Joss, D. T.

AU - Simpson, J.

AU - Scholey, C.

AU - Andgren, K.

AU - Bianco, L.

AU - Cederwall, B.

AU - Cullen, D. M.

AU - Dewald, A.

AU - Ganioglu, E.

AU - Hornillos, M. B. Gomez

AU - Greenlees, P. T.

AU - Hadinia, B.

AU - Iwasaki, H.

AU - Jakobsson, U.

AU - Jolie, J.

AU - Jones, P.

AU - Judson, D. S.

AU - Julin, R.

AU - Juutinen, S.

AU - Ketelhut, S.

AU - Labiche, M.

AU - Leino, M.

AU - Lumley, N. M.

AU - Mason, P. J. R.

AU - Möller, O.

AU - Nieminen, P.

AU - Nyman, M.

AU - Page, R. D.

AU - Pakarinen, J.

AU - Paul, E. S.

AU - Petri, M.

AU - Petts, A.

AU - Peura, P.

AU - Pietralla, N.

AU - Pissulla, Th.

AU - Rahkila, P.

AU - Ruotsalainen, P.

AU - Sandzelius, M.

AU - Sapple, P. J.

AU - Saren, J.

AU - Sorri, J.

AU - Thomson, J.

AU - Uusitalo, J.

AU - Watkins, H. V.

PY - 2009/6/10

Y1 - 2009/6/10

N2 - Excited states of the nucleus 167Os have been populated by the reaction 92Mo(78Kr,2pn). The JUROGAM γ-ray detector array has been used in conjunction with the RITU gas-filled separator and the GREAT spectrometer to observe prompt γ rays in coincidence with recoiling fusion-evaporation residues and their subsequent decay by α particle emission. By correlating prompt γ radiation with the characteristic α radioactivity of 167Os, it has been possible to extend the level scheme for this nucleus significantly. In particular, an extension of the yrast band and four previously unobserved bands are reported. In addition, the recoil distance Doppler-shift method was used to determine a lifetime of τ=20(4) ps for The Iπ=17/2+ state in 167Os. Hence, the level of collectivity and magnitude of deformation of the low spin yrast band of this nucleus is established.

AB - Excited states of the nucleus 167Os have been populated by the reaction 92Mo(78Kr,2pn). The JUROGAM γ-ray detector array has been used in conjunction with the RITU gas-filled separator and the GREAT spectrometer to observe prompt γ rays in coincidence with recoiling fusion-evaporation residues and their subsequent decay by α particle emission. By correlating prompt γ radiation with the characteristic α radioactivity of 167Os, it has been possible to extend the level scheme for this nucleus significantly. In particular, an extension of the yrast band and four previously unobserved bands are reported. In addition, the recoil distance Doppler-shift method was used to determine a lifetime of τ=20(4) ps for The Iπ=17/2+ state in 167Os. Hence, the level of collectivity and magnitude of deformation of the low spin yrast band of this nucleus is established.

U2 - 10.1103/PhysRevC.79.064309

DO - 10.1103/PhysRevC.79.064309

M3 - Article

SN - 2469-9985

VL - 79

JO - Physical Review C

JF - Physical Review C

IS - 6

M1 - 064309

ER -

Spectroscopy of the neutron-deficient nucleus Os-167(91)

Abstract

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