Laser-assisted nuclear decay spectroscopy of 176,177,179Au

R.D. Harding; Andrei N. Andreyev; Anatoly (A.E.) Barzakh; Cubiss James G.; Piet Van Duppen; Numa A. Althubiti; Boris Andel; Stanislav Antalic; Thomas Elias Cocolios; Thomas Day Goodacre; Kristof Dockx; Gregory James Farooq-Smith; Dmitry V. Fedorov; Valentin N. Fedosseev; Daniel A. Fink; Liam Paul Gaffney; Lars Ghys

doi:10.1103/PhysRevC.104.024326

Laser-assisted nuclear decay spectroscopy of 176,177,179Au

R.D. Harding, Andrei N. Andreyev, Anatoly (A.E.) Barzakh, Cubiss James G., Piet Van Duppen, Numa A. Althubiti, Boris Andel, Stanislav Antalic, Thomas Elias Cocolios, Thomas Day Goodacre, Kristof Dockx, Gregory James Farooq-Smith, Dmitry V. Fedorov, Valentin N. Fedosseev, Daniel A. Fink, Liam Paul Gaffney, Lars Ghys

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Abstract

A study of the laser-ionized and mass-separated neutron-deficient isotopes 176,177,179Au was performed using the Resonance Ionization Laser Ion Source and the Windmill detection setup at ISOLDE, CERN. New and improved data on complex fine-structure α decays of the three isotopes were deduced, providing insight into the low-lying levels in the daughter nuclei 172,173,175Ir. New information on the properties of β-decay daughter products 177,179Pt was also obtained. From the first in-source laser spectroscopy measurements of the hyperfine structure in the atomic 267.6-nm transition of 176Au, the nuclear magnetic moments for both high- and low-spin α-decaying states were deduced. Together with the values determined from the additivity relations, they were used to propose the most probable spins and configurations for both states. The α-decay branching ratios were determined as bα (176Auls ) = 58(5)% and bα (176Auhs ) = 29(5)%.

Original language	English
Article number	024326
Pages (from-to)	1-16
Number of pages	16
Journal	Physical Review C
Volume	104
DOIs	https://doi.org/10.1103/PhysRevC.104.024326
State	Published - 23 Aug 2021

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Harding, R. D., Andreyev, A. N., Barzakh, A., James G., C., Van Duppen, P., Althubiti, N. A., Andel, B., Antalic, S., Cocolios, T. E., Day Goodacre, T., Dockx, K., Farooq-Smith, G. J., Fedorov, D. V., Fedosseev, V. N., Fink, D. A., Gaffney, L. P., & Ghys, L. (2021). Laser-assisted nuclear decay spectroscopy of 176,177,179Au. Physical Review C, 104, 1-16. Article 024326. https://doi.org/10.1103/PhysRevC.104.024326

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title = "Laser-assisted nuclear decay spectroscopy of 176,177,179Au",

abstract = "A study of the laser-ionized and mass-separated neutron-deficient isotopes 176,177,179Au was performed using the Resonance Ionization Laser Ion Source and the Windmill detection setup at ISOLDE, CERN. New and improved data on complex fine-structure α decays of the three isotopes were deduced, providing insight into the low-lying levels in the daughter nuclei 172,173,175Ir. New information on the properties of β-decay daughter products 177,179Pt was also obtained. From the first in-source laser spectroscopy measurements of the hyperfine structure in the atomic 267.6-nm transition of 176Au, the nuclear magnetic moments for both high- and low-spin α-decaying states were deduced. Together with the values determined from the additivity relations, they were used to propose the most probable spins and configurations for both states. The α-decay branching ratios were determined as bα (176Auls ) = 58(5)% and bα (176Auhs ) = 29(5)%. ",

keywords = "Alpha decay, Isomer decays, Electromagnetic transitions",

author = "R.D. Harding and Andreyev, {Andrei N.} and Barzakh, {Anatoly (A.E.)} and {James G.}, Cubiss and {Van Duppen}, Piet and Althubiti, {Numa A.} and Boris Andel and Stanislav Antalic and Cocolios, {Thomas Elias} and {Day Goodacre}, Thomas and Kristof Dockx and Farooq-Smith, {Gregory James} and Fedorov, {Dmitry V.} and Fedosseev, {Valentin N.} and Fink, {Daniel A.} and Gaffney, {Liam Paul} and Lars Ghys",

note = "Score=10",

year = "2021",

month = aug,

day = "23",

doi = "10.1103/PhysRevC.104.024326",

language = "English",

volume = "104",

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Harding, RD, Andreyev, AN, Barzakh, A, James G., C, Van Duppen, P, Althubiti, NA, Andel, B, Antalic, S, Cocolios, TE, Day Goodacre, T, Dockx, K, Farooq-Smith, GJ, Fedorov, DV, Fedosseev, VN, Fink, DA, Gaffney, LP & Ghys, L 2021, 'Laser-assisted nuclear decay spectroscopy of 176,177,179Au', Physical Review C, vol. 104, 024326, pp. 1-16. https://doi.org/10.1103/PhysRevC.104.024326

TY - JOUR

T1 - Laser-assisted nuclear decay spectroscopy of 176,177,179Au

AU - Harding, R.D.

AU - Andreyev, Andrei N.

AU - Barzakh, Anatoly (A.E.)

AU - James G., Cubiss

AU - Van Duppen, Piet

AU - Althubiti, Numa A.

AU - Andel, Boris

AU - Antalic, Stanislav

AU - Cocolios, Thomas Elias

AU - Day Goodacre, Thomas

AU - Dockx, Kristof

AU - Farooq-Smith, Gregory James

AU - Fedorov, Dmitry V.

AU - Fedosseev, Valentin N.

AU - Fink, Daniel A.

AU - Gaffney, Liam Paul

AU - Ghys, Lars

N1 - Score=10

PY - 2021/8/23

Y1 - 2021/8/23

N2 - A study of the laser-ionized and mass-separated neutron-deficient isotopes 176,177,179Au was performed using the Resonance Ionization Laser Ion Source and the Windmill detection setup at ISOLDE, CERN. New and improved data on complex fine-structure α decays of the three isotopes were deduced, providing insight into the low-lying levels in the daughter nuclei 172,173,175Ir. New information on the properties of β-decay daughter products 177,179Pt was also obtained. From the first in-source laser spectroscopy measurements of the hyperfine structure in the atomic 267.6-nm transition of 176Au, the nuclear magnetic moments for both high- and low-spin α-decaying states were deduced. Together with the values determined from the additivity relations, they were used to propose the most probable spins and configurations for both states. The α-decay branching ratios were determined as bα (176Auls ) = 58(5)% and bα (176Auhs ) = 29(5)%.

AB - A study of the laser-ionized and mass-separated neutron-deficient isotopes 176,177,179Au was performed using the Resonance Ionization Laser Ion Source and the Windmill detection setup at ISOLDE, CERN. New and improved data on complex fine-structure α decays of the three isotopes were deduced, providing insight into the low-lying levels in the daughter nuclei 172,173,175Ir. New information on the properties of β-decay daughter products 177,179Pt was also obtained. From the first in-source laser spectroscopy measurements of the hyperfine structure in the atomic 267.6-nm transition of 176Au, the nuclear magnetic moments for both high- and low-spin α-decaying states were deduced. Together with the values determined from the additivity relations, they were used to propose the most probable spins and configurations for both states. The α-decay branching ratios were determined as bα (176Auls ) = 58(5)% and bα (176Auhs ) = 29(5)%.

KW - Alpha decay

KW - Isomer decays

KW - Electromagnetic transitions

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M3 - Article

SN - 0556-2813

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JF - Physical Review C

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