K-Mixing and fast decay of a seven-quasiparticle isomer in 179Ta

F. G. Kondev; G. D. Dracoulis; G. J. Lane; I. Ahmad; A. P. Byrne; M. P. Carpenter; P. Chowdhury; S. J. Freeman; N. J. Hammond; R. V F Janssens; T. Kibédi; T. Lauritsen; C. J. Lister; G. Mukherjee; D. Seweryniak; S. K. Tandel

doi:10.1140/epja/i2004-10025-9

K-Mixing and fast decay of a seven-quasiparticle isomer in 179Ta

F. G. Kondev, G. D. Dracoulis, G. J. Lane, I. Ahmad, A. P. Byrne, M. P. Carpenter, P. Chowdhury, S. J. Freeman, N. J. Hammond, R. V F Janssens, T. Kibédi, T. Lauritsen, C. J. Lister, G. Mukherjee, D. Seweryniak, S. K. Tandel

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

Abstract

A seven-quasiparticle isomer with Kπ = (49/2+) and T1/2 = 53(-7+3) ns has been identified in 179Ta. By comparing its excitation energy with results from multi-quasiparticle calculations that include the effects of blocking and residual nucleon-nucleon interactions, the isomer is assigned the π3(5/2+[402], 7/2+[404], 9/2 -[514]) ⊗ ν4(5/2-[512], 7/2 -[514], 7/2-[503], 9/2+[624]) configuration. The decay of this isomer is found to be unusually fast, a feature that is attributed to a mixing with a specific collective level. The interaction strength is found to be orders of magnitude lower than that observed between interacting collective levels. © Società Italiana di Fisica / Springer-Verlag 2004.

Original language	English
Pages (from-to)	23-27
Number of pages	4
Journal	European Physical Journal A
Volume	22
Issue number	1
DOIs	https://doi.org/10.1140/epja/i2004-10025-9
Publication status	Published - Oct 2004

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Kondev, F. G., Dracoulis, G. D., Lane, G. J., Ahmad, I., Byrne, A. P., Carpenter, M. P., Chowdhury, P., Freeman, S. J., Hammond, N. J., Janssens, R. V. F., Kibédi, T., Lauritsen, T., Lister, C. J., Mukherjee, G., Seweryniak, D., & Tandel, S. K. (2004). K-Mixing and fast decay of a seven-quasiparticle isomer in 179Ta. European Physical Journal A, 22(1), 23-27. https://doi.org/10.1140/epja/i2004-10025-9

@article{848d29088fa7406c971e8f7f74d5f60b,

title = "K-Mixing and fast decay of a seven-quasiparticle isomer in 179Ta",

abstract = "A seven-quasiparticle isomer with Kπ = (49/2+) and T1/2 = 53(-7+3) ns has been identified in 179Ta. By comparing its excitation energy with results from multi-quasiparticle calculations that include the effects of blocking and residual nucleon-nucleon interactions, the isomer is assigned the π3(5/2+[402], 7/2+[404], 9/2 -[514]) ⊗ ν4(5/2-[512], 7/2 -[514], 7/2-[503], 9/2+[624]) configuration. The decay of this isomer is found to be unusually fast, a feature that is attributed to a mixing with a specific collective level. The interaction strength is found to be orders of magnitude lower than that observed between interacting collective levels. {\textcopyright} Societ{\`a} Italiana di Fisica / Springer-Verlag 2004.",

author = "Kondev, {F. G.} and Dracoulis, {G. D.} and Lane, {G. J.} and I. Ahmad and Byrne, {A. P.} and Carpenter, {M. P.} and P. Chowdhury and Freeman, {S. J.} and Hammond, {N. J.} and Janssens, {R. V F} and T. Kib{\'e}di and T. Lauritsen and Lister, {C. J.} and G. Mukherjee and D. Seweryniak and Tandel, {S. K.}",

year = "2004",

month = oct,

doi = "10.1140/epja/i2004-10025-9",

language = "English",

volume = "22",

pages = "23--27",

journal = "European Physical Journal A",

issn = "1434-601X",

publisher = "Springer Nature",

number = "1",

}

Kondev, FG, Dracoulis, GD, Lane, GJ, Ahmad, I, Byrne, AP, Carpenter, MP, Chowdhury, P, Freeman, SJ, Hammond, NJ, Janssens, RVF, Kibédi, T, Lauritsen, T, Lister, CJ, Mukherjee, G, Seweryniak, D & Tandel, SK 2004, 'K-Mixing and fast decay of a seven-quasiparticle isomer in 179Ta', European Physical Journal A, vol. 22, no. 1, pp. 23-27. https://doi.org/10.1140/epja/i2004-10025-9

TY - JOUR

T1 - K-Mixing and fast decay of a seven-quasiparticle isomer in 179Ta

AU - Kondev, F. G.

AU - Dracoulis, G. D.

AU - Lane, G. J.

AU - Ahmad, I.

AU - Byrne, A. P.

AU - Carpenter, M. P.

AU - Chowdhury, P.

AU - Freeman, S. J.

AU - Hammond, N. J.

AU - Janssens, R. V F

AU - Kibédi, T.

AU - Lauritsen, T.

AU - Lister, C. J.

AU - Mukherjee, G.

AU - Seweryniak, D.

AU - Tandel, S. K.

PY - 2004/10

Y1 - 2004/10

N2 - A seven-quasiparticle isomer with Kπ = (49/2+) and T1/2 = 53(-7+3) ns has been identified in 179Ta. By comparing its excitation energy with results from multi-quasiparticle calculations that include the effects of blocking and residual nucleon-nucleon interactions, the isomer is assigned the π3(5/2+[402], 7/2+[404], 9/2 -[514]) ⊗ ν4(5/2-[512], 7/2 -[514], 7/2-[503], 9/2+[624]) configuration. The decay of this isomer is found to be unusually fast, a feature that is attributed to a mixing with a specific collective level. The interaction strength is found to be orders of magnitude lower than that observed between interacting collective levels. © Società Italiana di Fisica / Springer-Verlag 2004.

AB - A seven-quasiparticle isomer with Kπ = (49/2+) and T1/2 = 53(-7+3) ns has been identified in 179Ta. By comparing its excitation energy with results from multi-quasiparticle calculations that include the effects of blocking and residual nucleon-nucleon interactions, the isomer is assigned the π3(5/2+[402], 7/2+[404], 9/2 -[514]) ⊗ ν4(5/2-[512], 7/2 -[514], 7/2-[503], 9/2+[624]) configuration. The decay of this isomer is found to be unusually fast, a feature that is attributed to a mixing with a specific collective level. The interaction strength is found to be orders of magnitude lower than that observed between interacting collective levels. © Società Italiana di Fisica / Springer-Verlag 2004.

U2 - 10.1140/epja/i2004-10025-9

DO - 10.1140/epja/i2004-10025-9

M3 - Article

SN - 1434-601X

VL - 22

SP - 23

EP - 27

JO - European Physical Journal A

JF - European Physical Journal A

IS - 1

ER -

K-Mixing and fast decay of a seven-quasiparticle isomer in 179Ta

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