Experimental study of isomeric intruder 12 + states in at 197,203

K. Auranen; J. Uusitalo; S. Juutinen; H. Badran; F. Defranchi Bisso; D. Cox; T. Grahn; P. T. Greenlees; A. Herzáň; U. Jakobsson; R. Julin; J. Konki; M. Leino; A. Lightfoot; M. Mallaburn; O. Neuvonen; J. Pakarinen; P. Papadakis; J. Partanen; P. Rahkila; M. Sandzelius; J. Sarén; C. Scholey; J. Sorri; S. Stolze

doi:10.1103/PhysRevC.95.044311

Experimental study of isomeric intruder 12 + states in at 197,203

K. Auranen, J. Uusitalo, S. Juutinen, H. Badran, F. Defranchi Bisso, D. Cox, T. Grahn, P. T. Greenlees, A. Herzáň, U. Jakobsson, R. Julin, J. Konki, M. Leino, A. Lightfoot, M. Mallaburn, O. Neuvonen, J. Pakarinen, P. Papadakis, J. Partanen, P. RahkilaM. Sandzelius, J. Sarén, C. Scholey, J. Sorri, S. Stolze

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Abstract

A newly observed isomeric intruder -+ state [T-=3.5(6)ms] is identified in At203 using a gas-filled recoil separator and fusion-evaporation reactions. The isomer is depopulated through a cascade of E3 and mixed M1/E2 transitions to the 9/2- ground state, and it is suggested to originate from the π(s-)-1 configuration. In addition, the structures above the -+ state in At203 and At197 are studied using in-beam γ-ray spectroscopy, recoil-decay tagging, and recoil-isomer decay tagging methods. The -+ state is fed from 3/2+ and 5/2+ states, and the origin of these states are discussed.

Original language	English
Article number	044311
Journal	Physical Review C
Volume	95
Issue number	4
Early online date	10 Apr 2017
DOIs	https://doi.org/10.1103/PhysRevC.95.044311
Publication status	Published - 2017

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Auranen, K., Uusitalo, J., Juutinen, S., Badran, H., Bisso, F. D., Cox, D., Grahn, T., Greenlees, P. T., Herzáň, A., Jakobsson, U., Julin, R., Konki, J., Leino, M., Lightfoot, A., Mallaburn, M., Neuvonen, O., Pakarinen, J., Papadakis, P., Partanen, J., ... Stolze, S. (2017). Experimental study of isomeric intruder 12 + states in at 197,203. Physical Review C, 95(4), Article 044311. https://doi.org/10.1103/PhysRevC.95.044311

@article{e11f12642cf94d6ba9da2ace81033524,

title = "Experimental study of isomeric intruder 12 + states in at 197,203",

abstract = "A newly observed isomeric intruder -+ state [T-=3.5(6)ms] is identified in At203 using a gas-filled recoil separator and fusion-evaporation reactions. The isomer is depopulated through a cascade of E3 and mixed M1/E2 transitions to the 9/2- ground state, and it is suggested to originate from the π(s-)-1 configuration. In addition, the structures above the -+ state in At203 and At197 are studied using in-beam γ-ray spectroscopy, recoil-decay tagging, and recoil-isomer decay tagging methods. The -+ state is fed from 3/2+ and 5/2+ states, and the origin of these states are discussed.",

author = "K. Auranen and J. Uusitalo and S. Juutinen and H. Badran and Bisso, {F. Defranchi} and D. Cox and T. Grahn and Greenlees, {P. T.} and A. Herz{\'a}{\v n} and U. Jakobsson and R. Julin and J. Konki and M. Leino and A. Lightfoot and M. Mallaburn and O. Neuvonen and J. Pakarinen and P. Papadakis and J. Partanen and P. Rahkila and M. Sandzelius and J. Sar{\'e}n and C. Scholey and J. Sorri and S. Stolze",

year = "2017",

doi = "10.1103/PhysRevC.95.044311",

language = "English",

volume = "95",

journal = "Physical Review C",

issn = "2469-9985",

publisher = "American Physical Society",

number = "4",

}

Auranen, K, Uusitalo, J, Juutinen, S, Badran, H, Bisso, FD, Cox, D, Grahn, T, Greenlees, PT, Herzáň, A, Jakobsson, U, Julin, R, Konki, J, Leino, M, Lightfoot, A, Mallaburn, M, Neuvonen, O, Pakarinen, J, Papadakis, P, Partanen, J, Rahkila, P, Sandzelius, M, Sarén, J, Scholey, C, Sorri, J & Stolze, S 2017, 'Experimental study of isomeric intruder 12 + states in at 197,203', Physical Review C, vol. 95, no. 4, 044311. https://doi.org/10.1103/PhysRevC.95.044311

TY - JOUR

T1 - Experimental study of isomeric intruder 12 + states in at 197,203

AU - Auranen, K.

AU - Uusitalo, J.

AU - Juutinen, S.

AU - Badran, H.

AU - Bisso, F. Defranchi

AU - Cox, D.

AU - Grahn, T.

AU - Greenlees, P. T.

AU - Herzáň, A.

AU - Jakobsson, U.

AU - Julin, R.

AU - Konki, J.

AU - Leino, M.

AU - Lightfoot, A.

AU - Mallaburn, M.

AU - Neuvonen, O.

AU - Pakarinen, J.

AU - Papadakis, P.

AU - Partanen, J.

AU - Rahkila, P.

AU - Sandzelius, M.

AU - Sarén, J.

AU - Scholey, C.

AU - Sorri, J.

AU - Stolze, S.

PY - 2017

Y1 - 2017

N2 - A newly observed isomeric intruder -+ state [T-=3.5(6)ms] is identified in At203 using a gas-filled recoil separator and fusion-evaporation reactions. The isomer is depopulated through a cascade of E3 and mixed M1/E2 transitions to the 9/2- ground state, and it is suggested to originate from the π(s-)-1 configuration. In addition, the structures above the -+ state in At203 and At197 are studied using in-beam γ-ray spectroscopy, recoil-decay tagging, and recoil-isomer decay tagging methods. The -+ state is fed from 3/2+ and 5/2+ states, and the origin of these states are discussed.

AB - A newly observed isomeric intruder -+ state [T-=3.5(6)ms] is identified in At203 using a gas-filled recoil separator and fusion-evaporation reactions. The isomer is depopulated through a cascade of E3 and mixed M1/E2 transitions to the 9/2- ground state, and it is suggested to originate from the π(s-)-1 configuration. In addition, the structures above the -+ state in At203 and At197 are studied using in-beam γ-ray spectroscopy, recoil-decay tagging, and recoil-isomer decay tagging methods. The -+ state is fed from 3/2+ and 5/2+ states, and the origin of these states are discussed.

UR - http://www.scopus.com/inward/record.url?scp=85017290977&partnerID=8YFLogxK

U2 - 10.1103/PhysRevC.95.044311

DO - 10.1103/PhysRevC.95.044311

M3 - Article

AN - SCOPUS:85017290977

SN - 2469-9985

VL - 95

JO - Physical Review C

JF - Physical Review C

IS - 4

M1 - 044311

ER -

Experimental study of isomeric intruder 12 + states in at 197,203

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