γ-ray spectroscopy of At197

K. Andgren; U. Jakobsson; B. Cederwall; J. Uusitalo; T. Bäck; S. J. Freeman; P. T. Greenlees; B. Hadinia; A. Hugues; A. Johnson; P. M. Jones; D. T. Joss; S. Juutinen; R. Julin; S. Ketelhut; A. Khaplanov; M. Leino; M. Nyman; R. D. Page; P. Rahkila; M. Sandzelius; P. Sapple; J. Sarén; C. Scholey; J. Simpson; J. Sorri; J. Thomson; R. Wyss

doi:10.1103/PhysRevC.78.044328

γ-ray spectroscopy of At197

K. Andgren, U. Jakobsson, B. Cederwall, J. Uusitalo, T. Bäck, S. J. Freeman, P. T. Greenlees, B. Hadinia, A. Hugues, A. Johnson, P. M. Jones, D. T. Joss, S. Juutinen, R. Julin, S. Ketelhut, A. Khaplanov, M. Leino, M. Nyman, R. D. Page, P. RahkilaM. Sandzelius, P. Sapple, J. Sarén, C. Scholey, J. Simpson, J. Sorri, J. Thomson, R. Wyss

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

15 Scopus citations

Abstract

Excited states of the extremely neutron-deficient nucleus At197 have been studied in an in-beam experiment using the fusion-evaporation reaction Sn118(Kr82,p2n)At197. γ rays belonging to At197 feeding the Iπ=(9/2-) ground state, as well as γ rays feeding the 311-keV Iπ=(13/2+) isomer, decaying via the emission of γ rays, and the 52-keV Iπ=(1/2+) α-decaying isomer have been identified using the recoil-α-decay tagging technique. Total Routhian surface calculations predict a near-spherical shape for the (9/2-) ground state and oblate shapes with β2 around -0.2 for the (1/2+) and the (13/2+) states. These predictions agree with our experimental findings.

Original language	English
Article number	044328
Journal	Physical Review C - Nuclear Physics
Volume	78
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevC.78.044328
State	Published - Oct 27 2008
Externally published	Yes

Access to Document

10.1103/PhysRevC.78.044328

Cite this

Andgren, K., Jakobsson, U., Cederwall, B., Uusitalo, J., Bäck, T., Freeman, S. J., Greenlees, P. T., Hadinia, B., Hugues, A., Johnson, A., Jones, P. M., Joss, D. T., Juutinen, S., Julin, R., Ketelhut, S., Khaplanov, A., Leino, M., Nyman, M., Page, R. D., ... Wyss, R. (2008). γ-ray spectroscopy of At197. Physical Review C - Nuclear Physics, 78(4), Article 044328. https://doi.org/10.1103/PhysRevC.78.044328

@article{030f9b6de5094a43b8253aed6f1bc710,

title = "γ-ray spectroscopy of At197",

abstract = "Excited states of the extremely neutron-deficient nucleus At197 have been studied in an in-beam experiment using the fusion-evaporation reaction Sn118(Kr82,p2n)At197. γ rays belonging to At197 feeding the Iπ=(9/2-) ground state, as well as γ rays feeding the 311-keV Iπ=(13/2+) isomer, decaying via the emission of γ rays, and the 52-keV Iπ=(1/2+) α-decaying isomer have been identified using the recoil-α-decay tagging technique. Total Routhian surface calculations predict a near-spherical shape for the (9/2-) ground state and oblate shapes with β2 around -0.2 for the (1/2+) and the (13/2+) states. These predictions agree with our experimental findings.",

author = "K. Andgren and U. Jakobsson and B. Cederwall and J. Uusitalo and T. B{\"a}ck and Freeman, {S. J.} and Greenlees, {P. T.} and B. Hadinia and A. Hugues and A. Johnson and Jones, {P. M.} and Joss, {D. T.} and S. Juutinen and R. Julin and S. Ketelhut and A. Khaplanov and M. Leino and M. Nyman and Page, {R. D.} and P. Rahkila and M. Sandzelius and P. Sapple and J. Sar{\'e}n and C. Scholey and J. Simpson and J. Sorri and J. Thomson and R. Wyss",

year = "2008",

month = oct,

day = "27",

doi = "10.1103/PhysRevC.78.044328",

language = "English",

volume = "78",

journal = "Physical Review C - Nuclear Physics",

issn = "0556-2813",

number = "4",

}

Andgren, K, Jakobsson, U, Cederwall, B, Uusitalo, J, Bäck, T, Freeman, SJ, Greenlees, PT, Hadinia, B, Hugues, A, Johnson, A, Jones, PM, Joss, DT, Juutinen, S, Julin, R, Ketelhut, S, Khaplanov, A, Leino, M, Nyman, M, Page, RD, Rahkila, P, Sandzelius, M, Sapple, P, Sarén, J, Scholey, C, Simpson, J, Sorri, J, Thomson, J & Wyss, R 2008, 'γ-ray spectroscopy of At197', Physical Review C - Nuclear Physics, vol. 78, no. 4, 044328. https://doi.org/10.1103/PhysRevC.78.044328

TY - JOUR

T1 - γ-ray spectroscopy of At197

AU - Andgren, K.

AU - Jakobsson, U.

AU - Cederwall, B.

AU - Uusitalo, J.

AU - Bäck, T.

AU - Freeman, S. J.

AU - Greenlees, P. T.

AU - Hadinia, B.

AU - Hugues, A.

AU - Johnson, A.

AU - Jones, P. M.

AU - Joss, D. T.

AU - Juutinen, S.

AU - Julin, R.

AU - Ketelhut, S.

AU - Khaplanov, A.

AU - Leino, M.

AU - Nyman, M.

AU - Page, R. D.

AU - Rahkila, P.

AU - Sandzelius, M.

AU - Sapple, P.

AU - Sarén, J.

AU - Scholey, C.

AU - Simpson, J.

AU - Sorri, J.

AU - Thomson, J.

AU - Wyss, R.

PY - 2008/10/27

Y1 - 2008/10/27

N2 - Excited states of the extremely neutron-deficient nucleus At197 have been studied in an in-beam experiment using the fusion-evaporation reaction Sn118(Kr82,p2n)At197. γ rays belonging to At197 feeding the Iπ=(9/2-) ground state, as well as γ rays feeding the 311-keV Iπ=(13/2+) isomer, decaying via the emission of γ rays, and the 52-keV Iπ=(1/2+) α-decaying isomer have been identified using the recoil-α-decay tagging technique. Total Routhian surface calculations predict a near-spherical shape for the (9/2-) ground state and oblate shapes with β2 around -0.2 for the (1/2+) and the (13/2+) states. These predictions agree with our experimental findings.

AB - Excited states of the extremely neutron-deficient nucleus At197 have been studied in an in-beam experiment using the fusion-evaporation reaction Sn118(Kr82,p2n)At197. γ rays belonging to At197 feeding the Iπ=(9/2-) ground state, as well as γ rays feeding the 311-keV Iπ=(13/2+) isomer, decaying via the emission of γ rays, and the 52-keV Iπ=(1/2+) α-decaying isomer have been identified using the recoil-α-decay tagging technique. Total Routhian surface calculations predict a near-spherical shape for the (9/2-) ground state and oblate shapes with β2 around -0.2 for the (1/2+) and the (13/2+) states. These predictions agree with our experimental findings.

UR - http://www.scopus.com/inward/record.url?scp=55849132529&partnerID=8YFLogxK

U2 - 10.1103/PhysRevC.78.044328

DO - 10.1103/PhysRevC.78.044328

M3 - Article

AN - SCOPUS:55849132529

SN - 0556-2813

VL - 78

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

IS - 4

M1 - 044328

ER -

γ-ray spectroscopy of At197

Abstract

Access to Document

Other files and links

Fingerprint

Cite this