Spectroscopy and lifetime measurements in Ge 66, Se 69, and Ga 65 using fragmentation reactions

A. J. Nichols; R. Wadsworth; M. A. Bentley; P. J. Davies; J. Henderson; D. G. Jenkins; I. Paterson; H. Iwasaki; A. Lemasson; V. M. Bader; T. Baugher; D. Bazin; J. S. Berryman; A. Gade; C. Morse; S. R. Stroberg; D. Weisshaar; K. Whitmore; K. Wimmer; G. De Angelis; A. Dewald; T. Braunroth; C. Fransen; M. Hackstein; D. Miller

doi:10.1103/PhysRevC.91.014319

Spectroscopy and lifetime measurements in Ge 66, Se 69, and Ga 65 using fragmentation reactions

A. J. Nichols, R. Wadsworth, M. A. Bentley, P. J. Davies, J. Henderson, D. G. Jenkins, I. Paterson, H. Iwasaki, A. Lemasson, V. M. Bader, T. Baugher, D. Bazin, J. S. Berryman, A. Gade, C. Morse, S. R. Stroberg, D. Weisshaar, K. Whitmore, K. Wimmer, G. De AngelisA. Dewald, T. Braunroth, C. Fransen, M. Hackstein, D. Miller

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

Abstract

Lifetimes of low-lying excited states have been measured in Ge66,Se69, and Ga65 using a γ-ray lineshape method. The results confirm the previously reported 71- state lifetime in Ge66. The lifetime of the yrast 5/2- state in Ga65 is measured for the first time. Lifetime measurements of two excited 3/2- states in Se69 are also reported. Two previously unobserved γ rays have been identified in Se69. γ-γ coincidence measurements have been used to place one of these in the level scheme. Se69 excited state populations are compared to shell-model calculations using the GXPF1A interaction in the fp model space. Theoretical spectroscopic factors to excited states in Se69 have identified three candidate levels for the origin of one of the new transitions.

Original language	English
Article number	014319
Number of pages	6
Journal	Physical Review C (Nuclear Physics)
Volume	91
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevC.91.014319
Publication status	Published - 21 Jan 2015

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Nichols, A. J., Wadsworth, R., Bentley, M. A., Davies, P. J., Henderson, J., Jenkins, D. G., Paterson, I., Iwasaki, H., Lemasson, A., Bader, V. M., Baugher, T., Bazin, D., Berryman, J. S., Gade, A., Morse, C., Stroberg, S. R., Weisshaar, D., Whitmore, K., Wimmer, K., ... Miller, D. (2015). Spectroscopy and lifetime measurements in Ge 66, Se 69, and Ga 65 using fragmentation reactions. Physical Review C (Nuclear Physics), 91(1), Article 014319. https://doi.org/10.1103/PhysRevC.91.014319

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title = "Spectroscopy and lifetime measurements in Ge 66, Se 69, and Ga 65 using fragmentation reactions",

abstract = "Lifetimes of low-lying excited states have been measured in Ge66,Se69, and Ga65 using a γ-ray lineshape method. The results confirm the previously reported 71- state lifetime in Ge66. The lifetime of the yrast 5/2- state in Ga65 is measured for the first time. Lifetime measurements of two excited 3/2- states in Se69 are also reported. Two previously unobserved γ rays have been identified in Se69. γ-γ coincidence measurements have been used to place one of these in the level scheme. Se69 excited state populations are compared to shell-model calculations using the GXPF1A interaction in the fp model space. Theoretical spectroscopic factors to excited states in Se69 have identified three candidate levels for the origin of one of the new transitions.",

author = "Nichols, {A. J.} and R. Wadsworth and Bentley, {M. A.} and Davies, {P. J.} and J. Henderson and Jenkins, {D. G.} and I. Paterson and H. Iwasaki and A. Lemasson and Bader, {V. M.} and T. Baugher and D. Bazin and Berryman, {J. S.} and A. Gade and C. Morse and Stroberg, {S. R.} and D. Weisshaar and K. Whitmore and K. Wimmer and {De Angelis}, G. and A. Dewald and T. Braunroth and C. Fransen and M. Hackstein and D. Miller",

year = "2015",

month = jan,

day = "21",

doi = "10.1103/PhysRevC.91.014319",

language = "English",

volume = "91",

journal = "Physical Review C (Nuclear Physics)",

issn = "0556-2813",

publisher = "American Physical Society",

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Nichols, AJ, Wadsworth, R , Bentley, MA , Davies, PJ, Henderson, J, Jenkins, DG, Paterson, I, Iwasaki, H, Lemasson, A, Bader, VM, Baugher, T, Bazin, D, Berryman, JS, Gade, A, Morse, C, Stroberg, SR, Weisshaar, D, Whitmore, K, Wimmer, K, De Angelis, G, Dewald, A, Braunroth, T, Fransen, C, Hackstein, M & Miller, D 2015, 'Spectroscopy and lifetime measurements in Ge 66, Se 69, and Ga 65 using fragmentation reactions', Physical Review C (Nuclear Physics), vol. 91, no. 1, 014319. https://doi.org/10.1103/PhysRevC.91.014319

TY - JOUR

T1 - Spectroscopy and lifetime measurements in Ge 66, Se 69, and Ga 65 using fragmentation reactions

AU - Nichols, A. J.

AU - Wadsworth, R.

AU - Bentley, M. A.

AU - Davies, P. J.

AU - Henderson, J.

AU - Jenkins, D. G.

AU - Paterson, I.

AU - Iwasaki, H.

AU - Lemasson, A.

AU - Bader, V. M.

AU - Baugher, T.

AU - Bazin, D.

AU - Berryman, J. S.

AU - Gade, A.

AU - Morse, C.

AU - Stroberg, S. R.

AU - Weisshaar, D.

AU - Whitmore, K.

AU - Wimmer, K.

AU - De Angelis, G.

AU - Dewald, A.

AU - Braunroth, T.

AU - Fransen, C.

AU - Hackstein, M.

AU - Miller, D.

PY - 2015/1/21

Y1 - 2015/1/21

N2 - Lifetimes of low-lying excited states have been measured in Ge66,Se69, and Ga65 using a γ-ray lineshape method. The results confirm the previously reported 71- state lifetime in Ge66. The lifetime of the yrast 5/2- state in Ga65 is measured for the first time. Lifetime measurements of two excited 3/2- states in Se69 are also reported. Two previously unobserved γ rays have been identified in Se69. γ-γ coincidence measurements have been used to place one of these in the level scheme. Se69 excited state populations are compared to shell-model calculations using the GXPF1A interaction in the fp model space. Theoretical spectroscopic factors to excited states in Se69 have identified three candidate levels for the origin of one of the new transitions.

AB - Lifetimes of low-lying excited states have been measured in Ge66,Se69, and Ga65 using a γ-ray lineshape method. The results confirm the previously reported 71- state lifetime in Ge66. The lifetime of the yrast 5/2- state in Ga65 is measured for the first time. Lifetime measurements of two excited 3/2- states in Se69 are also reported. Two previously unobserved γ rays have been identified in Se69. γ-γ coincidence measurements have been used to place one of these in the level scheme. Se69 excited state populations are compared to shell-model calculations using the GXPF1A interaction in the fp model space. Theoretical spectroscopic factors to excited states in Se69 have identified three candidate levels for the origin of one of the new transitions.

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DO - 10.1103/PhysRevC.91.014319

M3 - Article

AN - SCOPUS:84921485700

SN - 0556-2813

VL - 91

JO - Physical Review C (Nuclear Physics)

JF - Physical Review C (Nuclear Physics)

IS - 1

M1 - 014319

ER -

Spectroscopy and lifetime measurements in Ge 66, Se 69, and Ga 65 using fragmentation reactions

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