High-spin proton alignments and evidence for a second band with enhanced deformation in 171Hf

Y. C. Zhang; Q. A. Ijaz; W. C. Ma; G. B. Hagemann; M. P. Carpenter; P. Chowdhury; D. M. Cullen; M. K. Djongolov; D. J. Hartley; R. V F Janssens; T. L. Khoo; F. G. Kondev; T. Lauritsen; E. Ngiojoi-Yogo; S. Ødegård; L. L. Riedinger; S. V. Rigby; D. G. Roux; D. T. Scholes; R. B. Yadav; S. Zhu

doi:10.1103/PhysRevC.85.064307

High-spin proton alignments and evidence for a second band with enhanced deformation in 171Hf

Y. C. Zhang, Q. A. Ijaz, W. C. Ma, G. B. Hagemann, M. P. Carpenter, P. Chowdhury, D. M. Cullen, M. K. Djongolov, D. J. Hartley, R. V F Janssens, T. L. Khoo, F. G. Kondev, T. Lauritsen, E. Ngiojoi-Yogo, S. Ødegård, L. L. Riedinger, S. V. Rigby, D. G. Roux, D. T. Scholes, R. B. YadavS. Zhu

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Abstract

High-spin properties of the nucleus 171Hf were studied through the 128Te(48Ca,5n) reaction. Previously known bands have been extended to significantly higher spins and four new bands have been extracted from these data. The results are discussed within the framework of the cranked shell model aided by a comparison with level structures in the neighboring nuclei. The band crossings at rotational frequencies ∼500 keV are interpreted as caused by the alignments of h 11/2 and h 9/2 proton orbitals. Band ED2 exhibits an alignment pattern similar to that of band ED1 which was reported in a recent paper and proposed to be built on a second potential energy minimum involving the deformation-driving proton i 13/2 - h 9/2 configuration. It is likely that band ED2 is also associated with a deformation enhanced with respect to that of the normal deformed structures. Further experimental investigation is needed to ascertain the nature of this band. © 2012 American Physical Society.

Original language	English
Article number	064307
Journal	Physical Review C - Nuclear Physics
Volume	85
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevC.85.064307
Publication status	Published - 7 Jun 2012

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Zhang, Y. C., Ijaz, Q. A., Ma, W. C., Hagemann, G. B., Carpenter, M. P., Chowdhury, P., Cullen, D. M., Djongolov, M. K., Hartley, D. J., Janssens, R. V. F., Khoo, T. L., Kondev, F. G., Lauritsen, T., Ngiojoi-Yogo, E., Ødegård, S., Riedinger, L. L., Rigby, S. V., Roux, D. G., Scholes, D. T., ... Zhu, S. (2012). High-spin proton alignments and evidence for a second band with enhanced deformation in 171Hf. Physical Review C - Nuclear Physics, 85(6), Article 064307. https://doi.org/10.1103/PhysRevC.85.064307

@article{af147242d0e04ae49a6cd38b0e25d9c0,

title = "High-spin proton alignments and evidence for a second band with enhanced deformation in 171Hf",

abstract = "High-spin properties of the nucleus 171Hf were studied through the 128Te(48Ca,5n) reaction. Previously known bands have been extended to significantly higher spins and four new bands have been extracted from these data. The results are discussed within the framework of the cranked shell model aided by a comparison with level structures in the neighboring nuclei. The band crossings at rotational frequencies ∼500 keV are interpreted as caused by the alignments of h 11/2 and h 9/2 proton orbitals. Band ED2 exhibits an alignment pattern similar to that of band ED1 which was reported in a recent paper and proposed to be built on a second potential energy minimum involving the deformation-driving proton i 13/2 - h 9/2 configuration. It is likely that band ED2 is also associated with a deformation enhanced with respect to that of the normal deformed structures. Further experimental investigation is needed to ascertain the nature of this band. {\textcopyright} 2012 American Physical Society.",

author = "Zhang, {Y. C.} and Ijaz, {Q. A.} and Ma, {W. C.} and Hagemann, {G. B.} and Carpenter, {M. P.} and P. Chowdhury and Cullen, {D. M.} and Djongolov, {M. K.} and Hartley, {D. J.} and Janssens, {R. V F} and Khoo, {T. L.} and Kondev, {F. G.} and T. Lauritsen and E. Ngiojoi-Yogo and S. {\O}deg{\aa}rd and Riedinger, {L. L.} and Rigby, {S. V.} and Roux, {D. G.} and Scholes, {D. T.} and Yadav, {R. B.} and S. Zhu",

year = "2012",

month = jun,

day = "7",

doi = "10.1103/PhysRevC.85.064307",

language = "English",

volume = "85",

journal = "Physical Review C - Nuclear Physics",

issn = "0556-2813",

publisher = "American Physical Society",

number = "6",

}

Zhang, YC, Ijaz, QA, Ma, WC, Hagemann, GB, Carpenter, MP, Chowdhury, P, Cullen, DM, Djongolov, MK, Hartley, DJ, Janssens, RVF, Khoo, TL, Kondev, FG, Lauritsen, T, Ngiojoi-Yogo, E, Ødegård, S, Riedinger, LL, Rigby, SV, Roux, DG, Scholes, DT, Yadav, RB & Zhu, S 2012, 'High-spin proton alignments and evidence for a second band with enhanced deformation in 171Hf', Physical Review C - Nuclear Physics, vol. 85, no. 6, 064307. https://doi.org/10.1103/PhysRevC.85.064307

TY - JOUR

T1 - High-spin proton alignments and evidence for a second band with enhanced deformation in 171Hf

AU - Zhang, Y. C.

AU - Ijaz, Q. A.

AU - Ma, W. C.

AU - Hagemann, G. B.

AU - Carpenter, M. P.

AU - Chowdhury, P.

AU - Cullen, D. M.

AU - Djongolov, M. K.

AU - Hartley, D. J.

AU - Janssens, R. V F

AU - Khoo, T. L.

AU - Kondev, F. G.

AU - Lauritsen, T.

AU - Ngiojoi-Yogo, E.

AU - Ødegård, S.

AU - Riedinger, L. L.

AU - Rigby, S. V.

AU - Roux, D. G.

AU - Scholes, D. T.

AU - Yadav, R. B.

AU - Zhu, S.

PY - 2012/6/7

Y1 - 2012/6/7

N2 - High-spin properties of the nucleus 171Hf were studied through the 128Te(48Ca,5n) reaction. Previously known bands have been extended to significantly higher spins and four new bands have been extracted from these data. The results are discussed within the framework of the cranked shell model aided by a comparison with level structures in the neighboring nuclei. The band crossings at rotational frequencies ∼500 keV are interpreted as caused by the alignments of h 11/2 and h 9/2 proton orbitals. Band ED2 exhibits an alignment pattern similar to that of band ED1 which was reported in a recent paper and proposed to be built on a second potential energy minimum involving the deformation-driving proton i 13/2 - h 9/2 configuration. It is likely that band ED2 is also associated with a deformation enhanced with respect to that of the normal deformed structures. Further experimental investigation is needed to ascertain the nature of this band. © 2012 American Physical Society.

AB - High-spin properties of the nucleus 171Hf were studied through the 128Te(48Ca,5n) reaction. Previously known bands have been extended to significantly higher spins and four new bands have been extracted from these data. The results are discussed within the framework of the cranked shell model aided by a comparison with level structures in the neighboring nuclei. The band crossings at rotational frequencies ∼500 keV are interpreted as caused by the alignments of h 11/2 and h 9/2 proton orbitals. Band ED2 exhibits an alignment pattern similar to that of band ED1 which was reported in a recent paper and proposed to be built on a second potential energy minimum involving the deformation-driving proton i 13/2 - h 9/2 configuration. It is likely that band ED2 is also associated with a deformation enhanced with respect to that of the normal deformed structures. Further experimental investigation is needed to ascertain the nature of this band. © 2012 American Physical Society.

U2 - 10.1103/PhysRevC.85.064307

DO - 10.1103/PhysRevC.85.064307

M3 - Article

SN - 0556-2813

VL - 85

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

IS - 6

M1 - 064307

ER -

High-spin proton alignments and evidence for a second band with enhanced deformation in 171Hf

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