Structure of 
Fe70
: Single-particle and collective degrees of freedom

A. Gade; R. V. F. Janssens; J. A. Tostevin; D. Bazin; J. Belarge; P. C. Bender; S. Bottoni; M. P. Carpenter; B. Elman; S. J. Freeman; T. Lauritsen; S. M. Lenzi; B. Longfellow; E. Lunderberg; A. Poves; L. A. Riley; D. K. Sharp; D. Weisshaar; S. Zhu

doi:10.1103/PhysRevC.99.011301

Structure of Fe70 : Single-particle and collective degrees of freedom

A. Gade, R. V. F. Janssens, J. A. Tostevin, D. Bazin, J. Belarge, P. C. Bender, S. Bottoni, M. P. Carpenter, B. Elman, S. J. Freeman, T. Lauritsen, S. M. Lenzi, B. Longfellow, E. Lunderberg, A. Poves, L. A. Riley, D. K. Sharp, D. Weisshaar, S. Zhu

Nuclear Physics Group

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Abstract

Excited states in the neutron-rich 70Fe nucleus were populated in a one-proton removal reaction from 71Co projectiles at 87 MeV/nucleon. A new transition was observed with the γ-ray tracking array GRETINA and shown to feed the previously assigned 4+1 state. In comparison to reaction theory calculations with shell-model spectroscopic factors, it is argued that the new γ ray possibly originates from the 6+1 state. It is further shown that the Doppler-reconstructed γ-ray spectra are sensitive to the very different lifetimes of the 2+ and 4+ states, enabling their approximate measurement. The emerging structure of 70Fe is discussed in comparison to LNPS-new large-scale shell-model calculations.

Original language	English
Article number	011301
Journal	Physical Review C
Volume	99
Issue number	1
Early online date	2 Jan 2019
DOIs	https://doi.org/10.1103/PhysRevC.99.011301 https://doi.org/10.1103/physrevc.99.011301
Publication status	Published - 2 Jan 2019

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Gade, A., Janssens, R. V. F., Tostevin, J. A., Bazin, D., Belarge, J., Bender, P. C., Bottoni, S., Carpenter, M. P., Elman, B., Freeman, S. J., Lauritsen, T., Lenzi, S. M., Longfellow, B., Lunderberg, E., Poves, A., Riley, L. A., Sharp, D. K., Weisshaar, D., & Zhu, S. (2019). Structure of Fe70 : Single-particle and collective degrees of freedom. Physical Review C, 99(1), Article 011301. https://doi.org/10.1103/PhysRevC.99.011301, https://doi.org/10.1103/physrevc.99.011301

@article{975fe1d4ed1f4072a1e4b7fea72a0d45,

title = "Structure of Fe70 : Single-particle and collective degrees of freedom",

abstract = "Excited states in the neutron-rich 70Fe nucleus were populated in a one-proton removal reaction from 71Co projectiles at 87 MeV/nucleon. A new transition was observed with the γ-ray tracking array GRETINA and shown to feed the previously assigned 4+1 state. In comparison to reaction theory calculations with shell-model spectroscopic factors, it is argued that the new γ ray possibly originates from the 6+1 state. It is further shown that the Doppler-reconstructed γ-ray spectra are sensitive to the very different lifetimes of the 2+ and 4+ states, enabling their approximate measurement. The emerging structure of 70Fe is discussed in comparison to LNPS-new large-scale shell-model calculations.",

author = "A. Gade and Janssens, {R. V. F.} and Tostevin, {J. A.} and D. Bazin and J. Belarge and Bender, {P. C.} and S. Bottoni and Carpenter, {M. P.} and B. Elman and Freeman, {S. J.} and T. Lauritsen and Lenzi, {S. M.} and B. Longfellow and E. Lunderberg and A. Poves and Riley, {L. A.} and Sharp, {D. K.} and D. Weisshaar and S. Zhu",

year = "2019",

month = jan,

day = "2",

doi = "10.1103/PhysRevC.99.011301",

language = "English",

volume = "99",

journal = "Physical Review C",

issn = "2469-9985",

publisher = "American Physical Society",

number = "1",

}

Gade, A, Janssens, RVF, Tostevin, JA, Bazin, D, Belarge, J, Bender, PC, Bottoni, S, Carpenter, MP, Elman, B, Freeman, SJ, Lauritsen, T, Lenzi, SM, Longfellow, B, Lunderberg, E, Poves, A, Riley, LA, Sharp, DK, Weisshaar, D & Zhu, S 2019, 'Structure of Fe70 : Single-particle and collective degrees of freedom', Physical Review C, vol. 99, no. 1, 011301. https://doi.org/10.1103/PhysRevC.99.011301, https://doi.org/10.1103/physrevc.99.011301

TY - JOUR

T1 - Structure of Fe70 : Single-particle and collective degrees of freedom

AU - Gade, A.

AU - Janssens, R. V. F.

AU - Tostevin, J. A.

AU - Bazin, D.

AU - Belarge, J.

AU - Bender, P. C.

AU - Bottoni, S.

AU - Carpenter, M. P.

AU - Elman, B.

AU - Freeman, S. J.

AU - Lauritsen, T.

AU - Lenzi, S. M.

AU - Longfellow, B.

AU - Lunderberg, E.

AU - Poves, A.

AU - Riley, L. A.

AU - Sharp, D. K.

AU - Weisshaar, D.

AU - Zhu, S.

PY - 2019/1/2

Y1 - 2019/1/2

N2 - Excited states in the neutron-rich 70Fe nucleus were populated in a one-proton removal reaction from 71Co projectiles at 87 MeV/nucleon. A new transition was observed with the γ-ray tracking array GRETINA and shown to feed the previously assigned 4+1 state. In comparison to reaction theory calculations with shell-model spectroscopic factors, it is argued that the new γ ray possibly originates from the 6+1 state. It is further shown that the Doppler-reconstructed γ-ray spectra are sensitive to the very different lifetimes of the 2+ and 4+ states, enabling their approximate measurement. The emerging structure of 70Fe is discussed in comparison to LNPS-new large-scale shell-model calculations.

AB - Excited states in the neutron-rich 70Fe nucleus were populated in a one-proton removal reaction from 71Co projectiles at 87 MeV/nucleon. A new transition was observed with the γ-ray tracking array GRETINA and shown to feed the previously assigned 4+1 state. In comparison to reaction theory calculations with shell-model spectroscopic factors, it is argued that the new γ ray possibly originates from the 6+1 state. It is further shown that the Doppler-reconstructed γ-ray spectra are sensitive to the very different lifetimes of the 2+ and 4+ states, enabling their approximate measurement. The emerging structure of 70Fe is discussed in comparison to LNPS-new large-scale shell-model calculations.

UR - http://dx.doi.org/10.1103/physrevc.99.011301

U2 - 10.1103/PhysRevC.99.011301

DO - 10.1103/PhysRevC.99.011301

M3 - Article

SN - 2469-9985

VL - 99

JO - Physical Review C

JF - Physical Review C

IS - 1

M1 - 011301

ER -

Structure of Fe70 : Single-particle and collective degrees of freedom

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