Recoil- β  tagging study of the   N = Z   nucleus    66As

P. Ruotsalainen; C. Scholey; R. Julin; K. Hauschild; K. Kaneko; B.S. Nara Singh; R. Wadsworth; D.G. Jenkins; T.S. Brock; P.T. Greenlees; J. Henderson; U. Jakobsson; P. Jones; S. Juutinen; S. Ketelhut; M. Leino; N.M. Lumley; P.J.R. Mason; P. Nieminen; M. Nyman; I. Paterson; P. Peura; M.G. Procter; P. Rahkila; J. Sarén; J. Sorri; J. Uusitalo

doi:10.1103/PhysRevC.88.024320

Recoil- β tagging study of the N = Z nucleus 66As

P. Ruotsalainen, C. Scholey, R. Julin, K. Hauschild, K. Kaneko, B.S. Nara Singh, R. Wadsworth, D.G. Jenkins, T.S. Brock, P.T. Greenlees, J. Henderson, U. Jakobsson, P. Jones, S. Juutinen, S. Ketelhut, M. Leino, N.M. Lumley, P.J.R. Mason, P. Nieminen, M. NymanI. Paterson, P. Peura, M.G. Procter, P. Rahkila, J. Sarén, J. Sorri, J. Uusitalo

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Abstract

An in-beam study has been performed to further investigate the known isomeric decays and to identify T=1 excited states in the medium-heavy N=Z=33 nucleus 66As. The fusion-evaporation reaction 40Ca(28Si,pn)66As was employed at beam energies of 75 and 83 MeV. The half-lives and ordering of two known isomeric states in 66As have been determined with improved accuracy. In addition, several prompt γ-ray transitions from excited states, both bypassing and decaying to the isomeric states in 66As, have been observed. Most importantly, candidates for the 4+→2+ and 6+→4+ transitions in the T=1 band have been identified. The results are compared with shell-model calculations using the modern JUN45 interaction in the pf5/2g9/2 model space.

Original language	English
Article number	024320
Journal	Physical Review C
Volume	88
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevC.88.024320
Publication status	Published - 21 Aug 2013
Externally published	Yes

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Ruotsalainen, P., Scholey, C., Julin, R., Hauschild, K., Kaneko, K., Nara Singh, B. S., Wadsworth, R., Jenkins, D. G., Brock, T. S., Greenlees, P. T., Henderson, J., Jakobsson, U., Jones, P., Juutinen, S., Ketelhut, S., Leino, M., Lumley, N. M., Mason, P. J. R., Nieminen, P., ... Uusitalo, J. (2013). Recoil- β tagging study of the N = Z nucleus 66As. Physical Review C, 88(2), Article 024320. https://doi.org/10.1103/PhysRevC.88.024320

@article{7e1b663284e74b0b9345cf3667151fcd,

title = "Recoil- β tagging study of the N = Z nucleus 66As",

abstract = "An in-beam study has been performed to further investigate the known isomeric decays and to identify T=1 excited states in the medium-heavy N=Z=33 nucleus 66As. The fusion-evaporation reaction 40Ca(28Si,pn)66As was employed at beam energies of 75 and 83 MeV. The half-lives and ordering of two known isomeric states in 66As have been determined with improved accuracy. In addition, several prompt γ-ray transitions from excited states, both bypassing and decaying to the isomeric states in 66As, have been observed. Most importantly, candidates for the 4+→2+ and 6+→4+ transitions in the T=1 band have been identified. The results are compared with shell-model calculations using the modern JUN45 interaction in the pf5/2g9/2 model space.",

author = "P. Ruotsalainen and C. Scholey and R. Julin and K. Hauschild and K. Kaneko and {Nara Singh}, B.S. and R. Wadsworth and D.G. Jenkins and T.S. Brock and P.T. Greenlees and J. Henderson and U. Jakobsson and P. Jones and S. Juutinen and S. Ketelhut and M. Leino and N.M. Lumley and P.J.R. Mason and P. Nieminen and M. Nyman and I. Paterson and P. Peura and M.G. Procter and P. Rahkila and J. Sar{\'e}n and J. Sorri and J. Uusitalo",

year = "2013",

month = aug,

day = "21",

doi = "10.1103/PhysRevC.88.024320",

language = "English",

volume = "88",

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publisher = "American Physical Society",

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Ruotsalainen, P, Scholey, C, Julin, R, Hauschild, K, Kaneko, K, Nara Singh, BS, Wadsworth, R, Jenkins, DG, Brock, TS, Greenlees, PT, Henderson, J, Jakobsson, U, Jones, P, Juutinen, S, Ketelhut, S, Leino, M, Lumley, NM, Mason, PJR, Nieminen, P, Nyman, M, Paterson, I, Peura, P, Procter, MG, Rahkila, P, Sarén, J, Sorri, J & Uusitalo, J 2013, 'Recoil- β tagging study of the N = Z nucleus 66As', Physical Review C, vol. 88, no. 2, 024320. https://doi.org/10.1103/PhysRevC.88.024320

TY - JOUR

T1 - Recoil- β tagging study of the N = Z nucleus 66As

AU - Ruotsalainen, P.

AU - Scholey, C.

AU - Julin, R.

AU - Hauschild, K.

AU - Kaneko, K.

AU - Nara Singh, B.S.

AU - Wadsworth, R.

AU - Jenkins, D.G.

AU - Brock, T.S.

AU - Greenlees, P.T.

AU - Henderson, J.

AU - Jakobsson, U.

AU - Jones, P.

AU - Juutinen, S.

AU - Ketelhut, S.

AU - Leino, M.

AU - Lumley, N.M.

AU - Mason, P.J.R.

AU - Nieminen, P.

AU - Nyman, M.

AU - Paterson, I.

AU - Peura, P.

AU - Procter, M.G.

AU - Rahkila, P.

AU - Sarén, J.

AU - Sorri, J.

AU - Uusitalo, J.

PY - 2013/8/21

Y1 - 2013/8/21

N2 - An in-beam study has been performed to further investigate the known isomeric decays and to identify T=1 excited states in the medium-heavy N=Z=33 nucleus 66As. The fusion-evaporation reaction 40Ca(28Si,pn)66As was employed at beam energies of 75 and 83 MeV. The half-lives and ordering of two known isomeric states in 66As have been determined with improved accuracy. In addition, several prompt γ-ray transitions from excited states, both bypassing and decaying to the isomeric states in 66As, have been observed. Most importantly, candidates for the 4+→2+ and 6+→4+ transitions in the T=1 band have been identified. The results are compared with shell-model calculations using the modern JUN45 interaction in the pf5/2g9/2 model space.

AB - An in-beam study has been performed to further investigate the known isomeric decays and to identify T=1 excited states in the medium-heavy N=Z=33 nucleus 66As. The fusion-evaporation reaction 40Ca(28Si,pn)66As was employed at beam energies of 75 and 83 MeV. The half-lives and ordering of two known isomeric states in 66As have been determined with improved accuracy. In addition, several prompt γ-ray transitions from excited states, both bypassing and decaying to the isomeric states in 66As, have been observed. Most importantly, candidates for the 4+→2+ and 6+→4+ transitions in the T=1 band have been identified. The results are compared with shell-model calculations using the modern JUN45 interaction in the pf5/2g9/2 model space.

U2 - 10.1103/PhysRevC.88.024320

DO - 10.1103/PhysRevC.88.024320

M3 - Article

SN - 2469-9985

VL - 88

JO - Physical Review C

JF - Physical Review C

IS - 2

M1 - 024320

ER -

Recoil- β tagging study of the N = Z nucleus 66As

Abstract

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