First observation of E1 transitions from the octupole band to the excited 0+2 pairing isomer band in the rare earth nucleus 154Dy

G. L. Zimba; S. P. Bvumbi; L. P. Masiteng; P. Jones; J. F. Sharpey-Schafer; E. Lawrie; S. N.T. Majola; T. S. Dinoko; J. J. Lawrie; D. Roux; P. Papka; J. E. Easton; D. Negi; O. Shirinda; N. Khumalo

First observation of E1 transitions from the octupole band to the excited 0⁺₂ pairing isomer band in the rare earth nucleus ¹⁵⁴Dy

G. L. Zimba, S. P. Bvumbi, L. P. Masiteng, P. Jones, J. F. Sharpey-Schafer, E. Lawrie, S. N.T. Majola, T. S. Dinoko, J. J. Lawrie, D. Roux, P. Papka, J. E. Easton, D. Negi, O. Shirinda, N. Khumalo

Research output: Contribution to journal › Conference article › peer-review

Abstract

The low spin states of 154Dy were studied with the AFRODITE spectrometer array [1] equipped with 9 clover High Purity Germanium (HPGe) detectors with Compton suppressing Bismuth Germanium (BGO) shielding at iThemba LABS. The Fusion Evaporation reaction 155Gd (3He, 4n) 154Dy at 37.5 MeV was used to populate low spin states. A first observation of enhanced E1 transitions in the transitional N = 88 isotones 150Sm and 152Gd from the levels in the first excited 0+ band to the lowest negative parity band [2]. The results we report here are on the first observation of enhanced E1 transitions from the low-lying negative parity band to the band built on the first excited 0+ state in 154Dy. These measurements on 154Dy extend the systematics on the relationship between the first excited positive parity pairing isomer band and the first excited negative parity band as the nuclear deformation decreases with increasing proton number.

Original language	English
Article number	021
Journal	Proceedings of Science
Volume	26-30-January-2015
Publication status	Published - 2015
Externally published	Yes
Event	53rd International Winter Meeting on Nuclear Physics, Bormio 2015 - Bormio, Italy Duration: 26 Jan 2015 → 30 Jan 2015

ASJC Scopus subject areas

Multidisciplinary

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Zimba, G. L., Bvumbi, S. P., Masiteng, L. P., Jones, P., Sharpey-Schafer, J. F., Lawrie, E., Majola, S. N. T., Dinoko, T. S., Lawrie, J. J., Roux, D., Papka, P., Easton, J. E., Negi, D., Shirinda, O., & Khumalo, N. (2015). First observation of E1 transitions from the octupole band to the excited 0⁺₂ pairing isomer band in the rare earth nucleus ¹⁵⁴Dy. Proceedings of Science, 26-30-January-2015, Article 021.

@article{defa675880664f37ac9257b1edeea481,

title = "First observation of E1 transitions from the octupole band to the excited 0+2 pairing isomer band in the rare earth nucleus 154Dy",

abstract = "The low spin states of 154Dy were studied with the AFRODITE spectrometer array [1] equipped with 9 clover High Purity Germanium (HPGe) detectors with Compton suppressing Bismuth Germanium (BGO) shielding at iThemba LABS. The Fusion Evaporation reaction 155Gd (3He, 4n) 154Dy at 37.5 MeV was used to populate low spin states. A first observation of enhanced E1 transitions in the transitional N = 88 isotones 150Sm and 152Gd from the levels in the first excited 0+ band to the lowest negative parity band [2]. The results we report here are on the first observation of enhanced E1 transitions from the low-lying negative parity band to the band built on the first excited 0+ state in 154Dy. These measurements on 154Dy extend the systematics on the relationship between the first excited positive parity pairing isomer band and the first excited negative parity band as the nuclear deformation decreases with increasing proton number.",

author = "Zimba, {G. L.} and Bvumbi, {S. P.} and Masiteng, {L. P.} and P. Jones and Sharpey-Schafer, {J. F.} and E. Lawrie and Majola, {S. N.T.} and Dinoko, {T. S.} and Lawrie, {J. J.} and D. Roux and P. Papka and Easton, {J. E.} and D. Negi and O. Shirinda and N. Khumalo",

note = "Publisher Copyright: {\textcopyright} Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence.; 53rd International Winter Meeting on Nuclear Physics, Bormio 2015 ; Conference date: 26-01-2015 Through 30-01-2015",

year = "2015",

language = "English",

volume = "26-30-January-2015",

journal = "Proceedings of Science",

issn = "1824-8039",

publisher = "Sissa Medialab Srl",

}

Zimba, GL, Bvumbi, SP, Masiteng, LP, Jones, P, Sharpey-Schafer, JF, Lawrie, E, Majola, SNT, Dinoko, TS, Lawrie, JJ, Roux, D, Papka, P, Easton, JE, Negi, D, Shirinda, O & Khumalo, N 2015, 'First observation of E1 transitions from the octupole band to the excited 0⁺₂ pairing isomer band in the rare earth nucleus ¹⁵⁴Dy', Proceedings of Science, vol. 26-30-January-2015, 021.

TY - JOUR

T1 - First observation of E1 transitions from the octupole band to the excited 0+2 pairing isomer band in the rare earth nucleus 154Dy

AU - Zimba, G. L.

AU - Bvumbi, S. P.

AU - Masiteng, L. P.

AU - Jones, P.

AU - Sharpey-Schafer, J. F.

AU - Lawrie, E.

AU - Majola, S. N.T.

AU - Dinoko, T. S.

AU - Lawrie, J. J.

AU - Roux, D.

AU - Papka, P.

AU - Easton, J. E.

AU - Negi, D.

AU - Shirinda, O.

AU - Khumalo, N.

N1 - Publisher Copyright: © Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence.

PY - 2015

Y1 - 2015

N2 - The low spin states of 154Dy were studied with the AFRODITE spectrometer array [1] equipped with 9 clover High Purity Germanium (HPGe) detectors with Compton suppressing Bismuth Germanium (BGO) shielding at iThemba LABS. The Fusion Evaporation reaction 155Gd (3He, 4n) 154Dy at 37.5 MeV was used to populate low spin states. A first observation of enhanced E1 transitions in the transitional N = 88 isotones 150Sm and 152Gd from the levels in the first excited 0+ band to the lowest negative parity band [2]. The results we report here are on the first observation of enhanced E1 transitions from the low-lying negative parity band to the band built on the first excited 0+ state in 154Dy. These measurements on 154Dy extend the systematics on the relationship between the first excited positive parity pairing isomer band and the first excited negative parity band as the nuclear deformation decreases with increasing proton number.

AB - The low spin states of 154Dy were studied with the AFRODITE spectrometer array [1] equipped with 9 clover High Purity Germanium (HPGe) detectors with Compton suppressing Bismuth Germanium (BGO) shielding at iThemba LABS. The Fusion Evaporation reaction 155Gd (3He, 4n) 154Dy at 37.5 MeV was used to populate low spin states. A first observation of enhanced E1 transitions in the transitional N = 88 isotones 150Sm and 152Gd from the levels in the first excited 0+ band to the lowest negative parity band [2]. The results we report here are on the first observation of enhanced E1 transitions from the low-lying negative parity band to the band built on the first excited 0+ state in 154Dy. These measurements on 154Dy extend the systematics on the relationship between the first excited positive parity pairing isomer band and the first excited negative parity band as the nuclear deformation decreases with increasing proton number.

UR - http://www.scopus.com/inward/record.url?scp=84988529676&partnerID=8YFLogxK

M3 - Conference article

AN - SCOPUS:84988529676

SN - 1824-8039

VL - 26-30-January-2015

JO - Proceedings of Science

JF - Proceedings of Science

M1 - 021

T2 - 53rd International Winter Meeting on Nuclear Physics, Bormio 2015

Y2 - 26 January 2015 through 30 January 2015

ER -

First observation of E1 transitions from the octupole band to the excited 0⁺₂ pairing isomer band in the rare earth nucleus ¹⁵⁴Dy

Abstract

ASJC Scopus subject areas

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