Shape coexistence in 187Au studied by laser spectroscopy

Anatoly (A.E.) Barzakh; Dimitar Atanasov; Andrei N. Andreyev; Numa A. Althubiti; Boris Andel; Stanislav Antalic; Klaus Blaum; Thomas Elias Cocolios; Cubiss James G.; Piet Van Duppen; Thomas Day Goodacre; Gregory James Farooq-Smith; Dmitry V. Fedorov; Valentin N. Fedosseev; Daniel A. Fink; Liam Paul Gaffney; Lars Ghys; Mark Huyse; Nobuaki Imai; S. Kreim; David Lunney; Kara M Lynch; Vladimir Manea; Bruce A Marsh; P.L. Molkanov; Dennis Neidherr; M. Rosenbusch; Ralf Erik Rossel; Sebastian Rothe; Lutz Schweikhard; Maxim D. Seliverstov; Simon Sels; Celine Van Beveren; Verstraelen Elise; A. Welker; Frank Wienholtz; R.N. Wolf; Kai Zuber

doi:10.1103/PhysRevC.101.064321

Shape coexistence in 187Au studied by laser spectroscopy

Anatoly (A.E.) Barzakh, Dimitar Atanasov, Andrei N. Andreyev, Numa A. Althubiti, Boris Andel, Stanislav Antalic, Klaus Blaum, Thomas Elias Cocolios, Cubiss James G., Piet Van Duppen, Thomas Day Goodacre, Gregory James Farooq-Smith, Dmitry V. Fedorov, Valentin N. Fedosseev, Daniel A. Fink, Liam Paul Gaffney, Lars Ghys, Mark Huyse, Nobuaki Imai, S. KreimDavid Lunney, Kara M Lynch, Vladimir Manea, Bruce A Marsh, P.L. Molkanov, Dennis Neidherr, M. Rosenbusch, Ralf Erik Rossel, Sebastian Rothe, Lutz Schweikhard, Maxim D. Seliverstov, Simon Sels, Celine Van Beveren, Verstraelen Elise, A. Welker, Frank Wienholtz, R.N. Wolf, Kai Zuber

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Abstract

Hyperfine-structure parameters and isotope shift of the 9/2− isomeric state in 187Au relative to 197Au for the 267.6-nm atomic transition have been measured for the first time using the in-source resonance-ionization spectroscopy technique. The magnetic dipole moment and change in the mean-square charge radius for this 9/2− isomer have been deduced. The observed large isomer shift relative to the 1/2+ ground state in 187Au confirms the occurrence of the shape coexistence in 187Au proposed earlier from the analysis of the nuclear spectroscopic data and particle plus triaxial rotor calculations. The analysis of the magnetic moment supports the previously proposed 9/2−, 1/2−[541] assignment at moderate prolate deformation for 187 aUm.

Original language	English
Article number	064321
Pages (from-to)	1-7
Number of pages	7
Journal	Physical Review C
Volume	101
DOIs	https://doi.org/10.1103/PhysRevC.101.064321
State	Published - 25 Jun 2020

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Barzakh, A., Atanasov, D., Andreyev, A. N., Althubiti, N. A., Andel, B., Antalic, S., Blaum, K., Cocolios, T. E., James G., C., Van Duppen, P., Day Goodacre, T., Farooq-Smith, G. J., Fedorov, D. V., Fedosseev, V. N., Fink, D. A., Gaffney, L. P., Ghys, L., Huyse, M., Imai, N., ... Zuber, K. (2020). Shape coexistence in 187Au studied by laser spectroscopy. Physical Review C, 101, 1-7. Article 064321. https://doi.org/10.1103/PhysRevC.101.064321

@article{4810eae033fd4257851e4895655124d2,

title = "Shape coexistence in 187Au studied by laser spectroscopy",

abstract = "Hyperfine-structure parameters and isotope shift of the 9/2− isomeric state in 187Au relative to 197Au for the 267.6-nm atomic transition have been measured for the first time using the in-source resonance-ionization spectroscopy technique. The magnetic dipole moment and change in the mean-square charge radius for this 9/2− isomer have been deduced. The observed large isomer shift relative to the 1/2+ ground state in 187Au confirms the occurrence of the shape coexistence in 187Au proposed earlier from the analysis of the nuclear spectroscopic data and particle plus triaxial rotor calculations. The analysis of the magnetic moment supports the previously proposed 9/2−, 1/2−[541] assignment at moderate prolate deformation for 187 aUm.",

keywords = "Fine & hyperfine structure, Isomer decays, Nuclear charge distribution, Nuclear structure, Spectroscopic factors, Electromagnetic moments",

author = "Barzakh, {Anatoly (A.E.)} and Dimitar Atanasov and Andreyev, {Andrei N.} and Althubiti, {Numa A.} and Boris Andel and Stanislav Antalic and Klaus Blaum and Cocolios, {Thomas Elias} and {James G.}, Cubiss and {Van Duppen}, Piet and {Day Goodacre}, Thomas and Farooq-Smith, {Gregory James} and Fedorov, {Dmitry V.} and Fedosseev, {Valentin N.} and Fink, {Daniel A.} and Gaffney, {Liam Paul} and Lars Ghys and Mark Huyse and Nobuaki Imai and S. Kreim and David Lunney and Lynch, {Kara M} and Vladimir Manea and Marsh, {Bruce A} and P.L. Molkanov and Dennis Neidherr and M. Rosenbusch and Rossel, {Ralf Erik} and Sebastian Rothe and Lutz Schweikhard and Seliverstov, {Maxim D.} and Simon Sels and {Van Beveren}, Celine and Verstraelen Elise and A. Welker and Frank Wienholtz and R.N. Wolf and Kai Zuber",

note = "Score=10",

year = "2020",

month = jun,

day = "25",

doi = "10.1103/PhysRevC.101.064321",

language = "English",

volume = "101",

pages = "1--7",

journal = "Physical Review C",

issn = "0556-2813",

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Barzakh, A, Atanasov, D, Andreyev, AN, Althubiti, NA, Andel, B, Antalic, S, Blaum, K, Cocolios, TE, James G., C, Van Duppen, P, Day Goodacre, T, Farooq-Smith, GJ, Fedorov, DV, Fedosseev, VN, Fink, DA, Gaffney, LP, Ghys, L, Huyse, M, Imai, N, Kreim, S, Lunney, D, Lynch, KM, Manea, V, Marsh, BA, Molkanov, PL, Neidherr, D, Rosenbusch, M, Rossel, RE, Rothe, S, Schweikhard, L, Seliverstov, MD, Sels, S, Van Beveren, C, Elise, V, Welker, A, Wienholtz, F, Wolf, RN & Zuber, K 2020, 'Shape coexistence in 187Au studied by laser spectroscopy', Physical Review C, vol. 101, 064321, pp. 1-7. https://doi.org/10.1103/PhysRevC.101.064321

TY - JOUR

T1 - Shape coexistence in 187Au studied by laser spectroscopy

AU - Barzakh, Anatoly (A.E.)

AU - Atanasov, Dimitar

AU - Andreyev, Andrei N.

AU - Althubiti, Numa A.

AU - Andel, Boris

AU - Antalic, Stanislav

AU - Blaum, Klaus

AU - Cocolios, Thomas Elias

AU - James G., Cubiss

AU - Van Duppen, Piet

AU - Day Goodacre, Thomas

AU - Farooq-Smith, Gregory James

AU - Fedorov, Dmitry V.

AU - Fedosseev, Valentin N.

AU - Fink, Daniel A.

AU - Gaffney, Liam Paul

AU - Ghys, Lars

AU - Huyse, Mark

AU - Imai, Nobuaki

AU - Kreim, S.

AU - Lunney, David

AU - Lynch, Kara M

AU - Manea, Vladimir

AU - Marsh, Bruce A

AU - Molkanov, P.L.

AU - Neidherr, Dennis

AU - Rosenbusch, M.

AU - Rossel, Ralf Erik

AU - Rothe, Sebastian

AU - Schweikhard, Lutz

AU - Seliverstov, Maxim D.

AU - Sels, Simon

AU - Van Beveren, Celine

AU - Elise, Verstraelen

AU - Welker, A.

AU - Wienholtz, Frank

AU - Wolf, R.N.

AU - Zuber, Kai

N1 - Score=10

PY - 2020/6/25

Y1 - 2020/6/25

N2 - Hyperfine-structure parameters and isotope shift of the 9/2− isomeric state in 187Au relative to 197Au for the 267.6-nm atomic transition have been measured for the first time using the in-source resonance-ionization spectroscopy technique. The magnetic dipole moment and change in the mean-square charge radius for this 9/2− isomer have been deduced. The observed large isomer shift relative to the 1/2+ ground state in 187Au confirms the occurrence of the shape coexistence in 187Au proposed earlier from the analysis of the nuclear spectroscopic data and particle plus triaxial rotor calculations. The analysis of the magnetic moment supports the previously proposed 9/2−, 1/2−[541] assignment at moderate prolate deformation for 187 aUm.

AB - Hyperfine-structure parameters and isotope shift of the 9/2− isomeric state in 187Au relative to 197Au for the 267.6-nm atomic transition have been measured for the first time using the in-source resonance-ionization spectroscopy technique. The magnetic dipole moment and change in the mean-square charge radius for this 9/2− isomer have been deduced. The observed large isomer shift relative to the 1/2+ ground state in 187Au confirms the occurrence of the shape coexistence in 187Au proposed earlier from the analysis of the nuclear spectroscopic data and particle plus triaxial rotor calculations. The analysis of the magnetic moment supports the previously proposed 9/2−, 1/2−[541] assignment at moderate prolate deformation for 187 aUm.

KW - Fine & hyperfine structure

KW - Isomer decays

KW - Nuclear charge distribution

KW - Nuclear structure

KW - Spectroscopic factors

KW - Electromagnetic moments

UR - https://ecm.sckcen.be/OTCS/llisapi.dll/open/39518696

U2 - 10.1103/PhysRevC.101.064321

DO - 10.1103/PhysRevC.101.064321

M3 - Article

SN - 0556-2813

VL - 101

SP - 1

EP - 7

JO - Physical Review C

JF - Physical Review C

M1 - 064321

ER -