Probe of triple shape coexistence in neutron deficient polonium nuclei

D. R. Wiseman; A. N. Andreyev; R. D. Page; I. G. Darby; S. Eeckhaudt; T. Grahn; P. T. Greenlees; P. Jones; R. Julin; S. Juutinen; H. Kettunen; M. Leino; A.-P. Leppanen; M. Nyman; J. Pakarinen; P. Rahkila; M. Sandzelius; J. Saren; C. Scholey; J. Uusitalo

Probe of triple shape coexistence in neutron deficient polonium nuclei

D. R. Wiseman^*, A. N. Andreyev, R. D. Page, I. G. Darby, S. Eeckhaudt, T. Grahn, P. T. Greenlees, P. Jones, R. Julin, S. Juutinen, H. Kettunen, M. Leino, A.-P. Leppanen, M. Nyman, J. Pakarinen, P. Rahkila, M. Sandzelius, J. Saren, C. Scholey, J. Uusitalo

^*Corresponding author for this work

Physics

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

gamma-ray transitions in the neutron deficient Po-190,Po-197 nuclei have been identified. The yrast band of Po-190 has been extended up to a spin and parity of 14(+) and is found to display similar systematic behaviour to isotones Hg-186 and Pb-188 above the 4(+) level, thus confirming its prolate nature. In Po-197 the band built upon the 13/2(+) isomer has been extended up to a spin and parity of 33/2(+), while the non-yrast side-band has been observed for the first time. The behaviour of Po-197 is found to be similar to that of the nearby even-mass isotopes, which is consistent with the model in which the i(13/2) neutron is weakly coupled to the states in the even-even core.

Original language	English
Title of host publication	Frontiers in Nuclear Structure Astrophysics, and Reactions: FINUSTAR
Editors	S Harissopulos, P Demetriou, R Julin
Place of Publication	MELVILLE
Publisher	American Institute of Physics
Pages	560-562
Number of pages	3
ISBN (Print)	0-7354-0323-6
Publication status	Published - 2006
Event	International Conference on Frontiers in Nuclear Structure, Astrophysics and Reactions (FINUSTAR) - Kos, Greece Duration: 12 Sept 2005 → 17 Sept 2005

Publication series

Name	AIP CONFERENCE PROCEEDINGS
Publisher	AMER INST PHYSICS
Volume	831
ISSN (Print)	0094-243X

Conference

Conference	International Conference on Frontiers in Nuclear Structure, Astrophysics and Reactions (FINUSTAR)
Country/Territory	Greece
City	Kos
Period	12/09/05 → 17/09/05

Keywords

GAMMA-RAY SPECTROSCOPY

Cite this

Wiseman, D. R., Andreyev, A. N., Page, R. D., Darby, I. G., Eeckhaudt, S., Grahn, T., Greenlees, P. T., Jones, P., Julin, R., Juutinen, S., Kettunen, H., Leino, M., Leppanen, A.-P., Nyman, M., Pakarinen, J., Rahkila, P., Sandzelius, M., Saren, J., Scholey, C., & Uusitalo, J. (2006). Probe of triple shape coexistence in neutron deficient polonium nuclei. In S. Harissopulos, P. Demetriou, & R. Julin (Eds.), Frontiers in Nuclear Structure Astrophysics, and Reactions: FINUSTAR (pp. 560-562). (AIP CONFERENCE PROCEEDINGS; Vol. 831). American Institute of Physics.

@inproceedings{cb1b66f6ac6046f9a9f53dfd4d681f74,

title = "Probe of triple shape coexistence in neutron deficient polonium nuclei",

abstract = "gamma-ray transitions in the neutron deficient Po-190,Po-197 nuclei have been identified. The yrast band of Po-190 has been extended up to a spin and parity of 14(+) and is found to display similar systematic behaviour to isotones Hg-186 and Pb-188 above the 4(+) level, thus confirming its prolate nature. In Po-197 the band built upon the 13/2(+) isomer has been extended up to a spin and parity of 33/2(+), while the non-yrast side-band has been observed for the first time. The behaviour of Po-197 is found to be similar to that of the nearby even-mass isotopes, which is consistent with the model in which the i(13/2) neutron is weakly coupled to the states in the even-even core.",

keywords = "GAMMA-RAY SPECTROSCOPY",

author = "Wiseman, {D. R.} and Andreyev, {A. N.} and Page, {R. D.} and Darby, {I. G.} and S. Eeckhaudt and T. Grahn and Greenlees, {P. T.} and P. Jones and R. Julin and S. Juutinen and H. Kettunen and M. Leino and A.-P. Leppanen and M. Nyman and J. Pakarinen and P. Rahkila and M. Sandzelius and J. Saren and C. Scholey and J. Uusitalo",

year = "2006",

language = "English",

isbn = "0-7354-0323-6",

series = "AIP CONFERENCE PROCEEDINGS",

publisher = "American Institute of Physics",

pages = "560--562",

editor = "S Harissopulos and P Demetriou and R Julin",

booktitle = "Frontiers in Nuclear Structure Astrophysics, and Reactions: FINUSTAR",

address = "United States",

note = "International Conference on Frontiers in Nuclear Structure, Astrophysics and Reactions (FINUSTAR) ; Conference date: 12-09-2005 Through 17-09-2005",

}

Wiseman, DR, Andreyev, AN, Page, RD, Darby, IG, Eeckhaudt, S, Grahn, T, Greenlees, PT, Jones, P, Julin, R, Juutinen, S, Kettunen, H, Leino, M, Leppanen, A-P, Nyman, M, Pakarinen, J, Rahkila, P, Sandzelius, M, Saren, J, Scholey, C & Uusitalo, J 2006, Probe of triple shape coexistence in neutron deficient polonium nuclei. in S Harissopulos, P Demetriou & R Julin (eds), Frontiers in Nuclear Structure Astrophysics, and Reactions: FINUSTAR. AIP CONFERENCE PROCEEDINGS, vol. 831, American Institute of Physics, MELVILLE, pp. 560-562, International Conference on Frontiers in Nuclear Structure, Astrophysics and Reactions (FINUSTAR), Kos, Greece, 12/09/05.

Probe of triple shape coexistence in neutron deficient polonium nuclei. / Wiseman, D. R.; Andreyev, A. N.; Page, R. D. et al.
Frontiers in Nuclear Structure Astrophysics, and Reactions: FINUSTAR. ed. / S Harissopulos; P Demetriou; R Julin. MELVILLE: American Institute of Physics, 2006. p. 560-562 (AIP CONFERENCE PROCEEDINGS; Vol. 831).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - Probe of triple shape coexistence in neutron deficient polonium nuclei

AU - Wiseman, D. R.

AU - Andreyev, A. N.

AU - Page, R. D.

AU - Darby, I. G.

AU - Eeckhaudt, S.

AU - Grahn, T.

AU - Greenlees, P. T.

AU - Jones, P.

AU - Julin, R.

AU - Juutinen, S.

AU - Kettunen, H.

AU - Leino, M.

AU - Leppanen, A.-P.

AU - Nyman, M.

AU - Pakarinen, J.

AU - Rahkila, P.

AU - Sandzelius, M.

AU - Saren, J.

AU - Scholey, C.

AU - Uusitalo, J.

PY - 2006

Y1 - 2006

N2 - gamma-ray transitions in the neutron deficient Po-190,Po-197 nuclei have been identified. The yrast band of Po-190 has been extended up to a spin and parity of 14(+) and is found to display similar systematic behaviour to isotones Hg-186 and Pb-188 above the 4(+) level, thus confirming its prolate nature. In Po-197 the band built upon the 13/2(+) isomer has been extended up to a spin and parity of 33/2(+), while the non-yrast side-band has been observed for the first time. The behaviour of Po-197 is found to be similar to that of the nearby even-mass isotopes, which is consistent with the model in which the i(13/2) neutron is weakly coupled to the states in the even-even core.

AB - gamma-ray transitions in the neutron deficient Po-190,Po-197 nuclei have been identified. The yrast band of Po-190 has been extended up to a spin and parity of 14(+) and is found to display similar systematic behaviour to isotones Hg-186 and Pb-188 above the 4(+) level, thus confirming its prolate nature. In Po-197 the band built upon the 13/2(+) isomer has been extended up to a spin and parity of 33/2(+), while the non-yrast side-band has been observed for the first time. The behaviour of Po-197 is found to be similar to that of the nearby even-mass isotopes, which is consistent with the model in which the i(13/2) neutron is weakly coupled to the states in the even-even core.

KW - GAMMA-RAY SPECTROSCOPY

M3 - Conference contribution

SN - 0-7354-0323-6

T3 - AIP CONFERENCE PROCEEDINGS

SP - 560

EP - 562

BT - Frontiers in Nuclear Structure Astrophysics, and Reactions: FINUSTAR

A2 - Harissopulos, S

A2 - Demetriou, P

A2 - Julin, R

PB - American Institute of Physics

CY - MELVILLE

T2 - International Conference on Frontiers in Nuclear Structure, Astrophysics and Reactions (FINUSTAR)

Y2 - 12 September 2005 through 17 September 2005

ER -