New structures in 178Hf and coulomb excitation of isomers

A. B. Hayes; D. Cline; C. Y. Wu; A. M. Hurst; M. P. Carpenter; J. P. Greene; R. V F Janssens; T. Lauritsen; D. Seweryniak; S. Zhu; S. A. Karamian; P. M. Walker; T. P D Swan; S. V. Rigby; D. M. Cullen; N. M. Lumley; P. Mason; J. J. Carroll; B. Detwiler; T. Harle; I. Mills; G. Trees

doi:10.1142/S0218301311017879

New structures in 178Hf and coulomb excitation of isomers

A. B. Hayes, D. Cline, C. Y. Wu, A. M. Hurst, M. P. Carpenter, J. P. Greene, R. V F Janssens, T. Lauritsen, D. Seweryniak, S. Zhu, S. A. Karamian, P. M. Walker, T. P D Swan, S. V. Rigby, D. M. Cullen, N. M. Lumley, P. Mason, J. J. Carroll, B. Detwiler, T. HarleI. Mills, G. Trees

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

Abstract

A 985 MeV 178Hf beam was Coulomb excited by a 208Pb target at the ATLAS accelerator of Argonne National Laboratory. Gammasphere and the CHICO particle detector recorded particle-γ coincidence data. The aim was to populate and determine the mechanism of previously observed Coulomb excitation of the Kπ = 6+ (t1/2 = 77 ns), 8- (4 s) and 16+ (31 y) isomer bands. New rotational bands were identified including an aligned band which appears to mix with the ground-state band (GSB) and the γ-vibrational band above ∼ 12 ℏ of angular momentum. Newly observed γ-decay transitions into the three isomer bands may elucidate the K-mixing which allows Coulomb excitation of these isomer bands, but direct decays from the GSB into the 16+ isomer band have not yet been confirmed. © 2011 World Scientific Publishing Company.

Original language	English
Pages (from-to)	474-481
Number of pages	7
Journal	International Journal of Modern Physics E
Volume	20
Issue number	2
DOIs	https://doi.org/10.1142/S0218301311017879
Publication status	Published - Feb 2011

Access to Document

10.1142/S0218301311017879

Cite this

Hayes, A. B., Cline, D., Wu, C. Y., Hurst, A. M., Carpenter, M. P., Greene, J. P., Janssens, R. V. F., Lauritsen, T., Seweryniak, D., Zhu, S., Karamian, S. A., Walker, P. M., Swan, T. P. D., Rigby, S. V., Cullen, D. M., Lumley, N. M., Mason, P., Carroll, J. J., Detwiler, B., ... Trees, G. (2011). New structures in 178Hf and coulomb excitation of isomers. International Journal of Modern Physics E, 20(2), 474-481. https://doi.org/10.1142/S0218301311017879

@article{9b3fdc000bb340558199d136949c0134,

title = "New structures in 178Hf and coulomb excitation of isomers",

abstract = "A 985 MeV 178Hf beam was Coulomb excited by a 208Pb target at the ATLAS accelerator of Argonne National Laboratory. Gammasphere and the CHICO particle detector recorded particle-γ coincidence data. The aim was to populate and determine the mechanism of previously observed Coulomb excitation of the Kπ = 6+ (t1/2 = 77 ns), 8- (4 s) and 16+ (31 y) isomer bands. New rotational bands were identified including an aligned band which appears to mix with the ground-state band (GSB) and the γ-vibrational band above ∼ 12 ℏ of angular momentum. Newly observed γ-decay transitions into the three isomer bands may elucidate the K-mixing which allows Coulomb excitation of these isomer bands, but direct decays from the GSB into the 16+ isomer band have not yet been confirmed. {\textcopyright} 2011 World Scientific Publishing Company.",

author = "Hayes, {A. B.} and D. Cline and Wu, {C. Y.} and Hurst, {A. M.} and Carpenter, {M. P.} and Greene, {J. P.} and Janssens, {R. V F} and T. Lauritsen and D. Seweryniak and S. Zhu and Karamian, {S. A.} and Walker, {P. M.} and Swan, {T. P D} and Rigby, {S. V.} and Cullen, {D. M.} and Lumley, {N. M.} and P. Mason and Carroll, {J. J.} and B. Detwiler and T. Harle and I. Mills and G. Trees",

year = "2011",

month = feb,

doi = "10.1142/S0218301311017879",

language = "English",

volume = "20",

pages = "474--481",

journal = "International Journal of Modern Physics E",

issn = "0218-3013",

publisher = "World Scientific Publishing Co. Pte. Ltd",

number = "2",

}

Hayes, AB, Cline, D, Wu, CY, Hurst, AM, Carpenter, MP, Greene, JP, Janssens, RVF, Lauritsen, T, Seweryniak, D, Zhu, S, Karamian, SA, Walker, PM, Swan, TPD, Rigby, SV, Cullen, DM, Lumley, NM, Mason, P, Carroll, JJ, Detwiler, B, Harle, T, Mills, I & Trees, G 2011, 'New structures in 178Hf and coulomb excitation of isomers', International Journal of Modern Physics E, vol. 20, no. 2, pp. 474-481. https://doi.org/10.1142/S0218301311017879

TY - JOUR

T1 - New structures in 178Hf and coulomb excitation of isomers

AU - Hayes, A. B.

AU - Cline, D.

AU - Wu, C. Y.

AU - Hurst, A. M.

AU - Carpenter, M. P.

AU - Greene, J. P.

AU - Janssens, R. V F

AU - Lauritsen, T.

AU - Seweryniak, D.

AU - Zhu, S.

AU - Karamian, S. A.

AU - Walker, P. M.

AU - Swan, T. P D

AU - Rigby, S. V.

AU - Cullen, D. M.

AU - Lumley, N. M.

AU - Mason, P.

AU - Carroll, J. J.

AU - Detwiler, B.

AU - Harle, T.

AU - Mills, I.

AU - Trees, G.

PY - 2011/2

Y1 - 2011/2

N2 - A 985 MeV 178Hf beam was Coulomb excited by a 208Pb target at the ATLAS accelerator of Argonne National Laboratory. Gammasphere and the CHICO particle detector recorded particle-γ coincidence data. The aim was to populate and determine the mechanism of previously observed Coulomb excitation of the Kπ = 6+ (t1/2 = 77 ns), 8- (4 s) and 16+ (31 y) isomer bands. New rotational bands were identified including an aligned band which appears to mix with the ground-state band (GSB) and the γ-vibrational band above ∼ 12 ℏ of angular momentum. Newly observed γ-decay transitions into the three isomer bands may elucidate the K-mixing which allows Coulomb excitation of these isomer bands, but direct decays from the GSB into the 16+ isomer band have not yet been confirmed. © 2011 World Scientific Publishing Company.

AB - A 985 MeV 178Hf beam was Coulomb excited by a 208Pb target at the ATLAS accelerator of Argonne National Laboratory. Gammasphere and the CHICO particle detector recorded particle-γ coincidence data. The aim was to populate and determine the mechanism of previously observed Coulomb excitation of the Kπ = 6+ (t1/2 = 77 ns), 8- (4 s) and 16+ (31 y) isomer bands. New rotational bands were identified including an aligned band which appears to mix with the ground-state band (GSB) and the γ-vibrational band above ∼ 12 ℏ of angular momentum. Newly observed γ-decay transitions into the three isomer bands may elucidate the K-mixing which allows Coulomb excitation of these isomer bands, but direct decays from the GSB into the 16+ isomer band have not yet been confirmed. © 2011 World Scientific Publishing Company.

U2 - 10.1142/S0218301311017879

DO - 10.1142/S0218301311017879

M3 - Article

SN - 0218-3013

VL - 20

SP - 474

EP - 481

JO - International Journal of Modern Physics E

JF - International Journal of Modern Physics E

IS - 2

ER -

New structures in 178Hf and coulomb excitation of isomers

Abstract

Access to Document

Fingerprint

Cite this