First observation of rotational structures in Re 168

D. J. Hartley; R. V.F. Janssens; L. L. Riedinger; M. A. Riley; X. Wang; S. L. Miller; A. D. Ayangeakaa; P. F. Bertone; M. P. Carpenter; C. J. Chiara; P. Chowdhury; U. Garg; G. Gürdal; S. S. Hota; F. G. Kondev; T. Lauritsen; W. C. Ma; J. Matta; E. A. McCutchan; S. Mukhopadhyay; E. E. Pedicini; J. R. Vanhoy; S. Zhu

doi:10.1103/PhysRevC.94.054329

First observation of rotational structures in Re 168

D. J. Hartley, R. V.F. Janssens, L. L. Riedinger, M. A. Riley, X. Wang, S. L. Miller, A. D. Ayangeakaa, P. F. Bertone, M. P. Carpenter, C. J. Chiara, P. Chowdhury, U. Garg, G. Gürdal, S. S. Hota, F. G. Kondev, T. Lauritsen, W. C. Ma, J. Matta, E. A. McCutchan, S. MukhopadhyayE. E. Pedicini, J. R. Vanhoy, S. Zhu

Radiation Imaging and Advanced Diagnosti

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Abstract

The first rotational sequences have been assigned to the odd-odd nucleus Re168. Coincidence relationships of these structures with rhenium x rays confirm the isotopic assignment, while arguments based on the γ-ray multiplicity (K-fold) distributions observed with the new bands lead to the mass assignment. Configurations for the two bands were determined through analysis of the rotational alignments of the structures and a comparison of the experimental B(M1)/B(E2) ratios with theory. Tentative spin assignments are proposed for the πh11/2νi13/2 band, based on energy level systematics for other known sequences in neighboring odd-odd rhenium nuclei, as well as on systematics seen for the signature inversion feature that is well known in this region. The spin assignment for the πh11/2ν(h9/2/f7/2) structure provides additional validation of the proposed spins and configurations for isomers in the Au176 → Ir172→Re168 α-decay chain.

Original language	English
Article number	054329
Journal	Physical Review C
Volume	94
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevC.94.054329
State	Published - Nov 30 2016

Funding

This work is funded by the National Science Foundation under GrantS No. PHY-1203100 (USNA), No. PHY-0754674 (FSU), and No. PHY10-68192 (ND), as well as by the US Department of Energy, Office of Nuclear Physics, under Contracts No. DE-AC02-06CH11357 (ANL), No. DE-FG02-94ER40848 (UML), No. DE-FG02-96ER40983 (UT), No. DE-FG02-95ER40939 (MSU), and No. DE-FG02-94ER40834 (UMCP). This research used resources of Argonne National Laboratory's ATLAS facility, which is a DOE Office of Science User Facility.

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Hartley, D. J., Janssens, R. V. F., Riedinger, L. L., Riley, M. A., Wang, X., Miller, S. L., Ayangeakaa, A. D., Bertone, P. F., Carpenter, M. P., Chiara, C. J., Chowdhury, P., Garg, U., Gürdal, G., Hota, S. S., Kondev, F. G., Lauritsen, T., Ma, W. C., Matta, J., McCutchan, E. A., ... Zhu, S. (2016). First observation of rotational structures in Re 168. Physical Review C, 94(5), Article 054329. https://doi.org/10.1103/PhysRevC.94.054329

@article{8d2b2396e30e409abe2c33054e828c9b,

title = "First observation of rotational structures in Re 168",

abstract = "The first rotational sequences have been assigned to the odd-odd nucleus Re168. Coincidence relationships of these structures with rhenium x rays confirm the isotopic assignment, while arguments based on the γ-ray multiplicity (K-fold) distributions observed with the new bands lead to the mass assignment. Configurations for the two bands were determined through analysis of the rotational alignments of the structures and a comparison of the experimental B(M1)/B(E2) ratios with theory. Tentative spin assignments are proposed for the πh11/2νi13/2 band, based on energy level systematics for other known sequences in neighboring odd-odd rhenium nuclei, as well as on systematics seen for the signature inversion feature that is well known in this region. The spin assignment for the πh11/2ν(h9/2/f7/2) structure provides additional validation of the proposed spins and configurations for isomers in the Au176 → Ir172→Re168 α-decay chain.",

author = "Hartley, {D. J.} and Janssens, {R. V.F.} and Riedinger, {L. L.} and Riley, {M. A.} and X. Wang and Miller, {S. L.} and Ayangeakaa, {A. D.} and Bertone, {P. F.} and Carpenter, {M. P.} and Chiara, {C. J.} and P. Chowdhury and U. Garg and G. G{\"u}rdal and Hota, {S. S.} and Kondev, {F. G.} and T. Lauritsen and Ma, {W. C.} and J. Matta and McCutchan, {E. A.} and S. Mukhopadhyay and Pedicini, {E. E.} and Vanhoy, {J. R.} and S. Zhu",

note = "Publisher Copyright: {\textcopyright} 2016 American Physical Society.",

year = "2016",

month = nov,

day = "30",

doi = "10.1103/PhysRevC.94.054329",

language = "English",

volume = "94",

journal = "Physical Review C",

issn = "2469-9985",

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Hartley, DJ, Janssens, RVF, Riedinger, LL, Riley, MA, Wang, X, Miller, SL, Ayangeakaa, AD, Bertone, PF, Carpenter, MP, Chiara, CJ, Chowdhury, P, Garg, U, Gürdal, G, Hota, SS, Kondev, FG, Lauritsen, T, Ma, WC, Matta, J, McCutchan, EA, Mukhopadhyay, S, Pedicini, EE, Vanhoy, JR & Zhu, S 2016, 'First observation of rotational structures in Re 168', Physical Review C, vol. 94, no. 5, 054329. https://doi.org/10.1103/PhysRevC.94.054329

TY - JOUR

T1 - First observation of rotational structures in Re 168

AU - Hartley, D. J.

AU - Janssens, R. V.F.

AU - Riedinger, L. L.

AU - Riley, M. A.

AU - Wang, X.

AU - Miller, S. L.

AU - Ayangeakaa, A. D.

AU - Bertone, P. F.

AU - Carpenter, M. P.

AU - Chiara, C. J.

AU - Chowdhury, P.

AU - Garg, U.

AU - Gürdal, G.

AU - Hota, S. S.

AU - Kondev, F. G.

AU - Lauritsen, T.

AU - Ma, W. C.

AU - Matta, J.

AU - McCutchan, E. A.

AU - Mukhopadhyay, S.

AU - Pedicini, E. E.

AU - Vanhoy, J. R.

AU - Zhu, S.

PY - 2016/11/30

Y1 - 2016/11/30

N2 - The first rotational sequences have been assigned to the odd-odd nucleus Re168. Coincidence relationships of these structures with rhenium x rays confirm the isotopic assignment, while arguments based on the γ-ray multiplicity (K-fold) distributions observed with the new bands lead to the mass assignment. Configurations for the two bands were determined through analysis of the rotational alignments of the structures and a comparison of the experimental B(M1)/B(E2) ratios with theory. Tentative spin assignments are proposed for the πh11/2νi13/2 band, based on energy level systematics for other known sequences in neighboring odd-odd rhenium nuclei, as well as on systematics seen for the signature inversion feature that is well known in this region. The spin assignment for the πh11/2ν(h9/2/f7/2) structure provides additional validation of the proposed spins and configurations for isomers in the Au176 → Ir172→Re168 α-decay chain.

AB - The first rotational sequences have been assigned to the odd-odd nucleus Re168. Coincidence relationships of these structures with rhenium x rays confirm the isotopic assignment, while arguments based on the γ-ray multiplicity (K-fold) distributions observed with the new bands lead to the mass assignment. Configurations for the two bands were determined through analysis of the rotational alignments of the structures and a comparison of the experimental B(M1)/B(E2) ratios with theory. Tentative spin assignments are proposed for the πh11/2νi13/2 band, based on energy level systematics for other known sequences in neighboring odd-odd rhenium nuclei, as well as on systematics seen for the signature inversion feature that is well known in this region. The spin assignment for the πh11/2ν(h9/2/f7/2) structure provides additional validation of the proposed spins and configurations for isomers in the Au176 → Ir172→Re168 α-decay chain.

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U2 - 10.1103/PhysRevC.94.054329

DO - 10.1103/PhysRevC.94.054329

M3 - Article

AN - SCOPUS:85000751793

SN - 2469-9985

VL - 94

JO - Physical Review C

JF - Physical Review C

IS - 5

M1 - 054329

ER -

First observation of rotational structures in Re 168

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