Beta decay of the axially asymmetric ground state of 192Re

H. Watanabe; Y. X. Watanabe; Y. Hirayama; A. N. Andreyev; T. Hashimoto; F. G. Kondev; G. J. Lane; Yu A. Litvinov; J. J. Liu; H. Miyatake; J. Y. Moon; A. I. Morales; M. Mukai; S. Nishimura; T. Niwase; M. Rosenbusch; P. Schury; Y. Shi; M. Wada; P. M. Walker

doi:10.1016/j.physletb.2021.136088

Beta decay of the axially asymmetric ground state of ¹⁹²Re

H. Watanabe^*, Y. X. Watanabe, Y. Hirayama, A. N. Andreyev, T. Hashimoto, F. G. Kondev, G. J. Lane, Yu A. Litvinov, J. J. Liu, H. Miyatake, J. Y. Moon, A. I. Morales, M. Mukai, S. Nishimura, T. Niwase, M. Rosenbusch, P. Schury, Y. Shi, M. Wada, P. M. Walker

^*Corresponding author for this work

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

8 Citations (Scopus)

Abstract

The β decay of ₇₅¹⁹²Re₁₁₇, which lies near the boundary between the regions of predicted prolate and oblate deformations, has been investigated using the KEK Isotope Separation System (KISS) in RIKEN Nishina Center. This is the first case in which a low-energy beam of rhenium isotope has been successfully extracted from an argon gas-stopping cell using a laser-ionization technique, following production via multi-nucleon transfer between heavy ions. The ground state of ¹⁹²Re has been assigned J^π=(0⁻) based on the observed β feedings and deduced logft values towards the 0⁺ and 2⁺ states in ¹⁹²Os, which is known as a typical γ-soft nucleus. The shape transition from axial symmetry to axial asymmetry in the Re isotopes is discussed from the viewpoint of single-particle structure using the nuclear Skyrme-Hartree-Fock model.

Original language	English
Article number	136088
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	814
DOIs	https://doi.org/10.1016/j.physletb.2021.136088
Publication status	Published - 10 Mar 2021

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Watanabe, H., Watanabe, Y. X., Hirayama, Y., Andreyev, A. N., Hashimoto, T., Kondev, F. G., Lane, G. J., Litvinov, Y. A., Liu, J. J., Miyatake, H., Moon, J. Y., Morales, A. I., Mukai, M., Nishimura, S., Niwase, T., Rosenbusch, M., Schury, P., Shi, Y., Wada, M., & Walker, P. M. (2021). Beta decay of the axially asymmetric ground state of ¹⁹²Re. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 814, Article 136088. https://doi.org/10.1016/j.physletb.2021.136088

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title = "Beta decay of the axially asymmetric ground state of 192Re",

abstract = "The β decay of 75192Re117, which lies near the boundary between the regions of predicted prolate and oblate deformations, has been investigated using the KEK Isotope Separation System (KISS) in RIKEN Nishina Center. This is the first case in which a low-energy beam of rhenium isotope has been successfully extracted from an argon gas-stopping cell using a laser-ionization technique, following production via multi-nucleon transfer between heavy ions. The ground state of 192Re has been assigned Jπ=(0−) based on the observed β feedings and deduced logft values towards the 0+ and 2+ states in 192Os, which is known as a typical γ-soft nucleus. The shape transition from axial symmetry to axial asymmetry in the Re isotopes is discussed from the viewpoint of single-particle structure using the nuclear Skyrme-Hartree-Fock model.",

keywords = "Axial asymmetry, Re, Shape transition, β decay",

author = "H. Watanabe and Watanabe, {Y. X.} and Y. Hirayama and Andreyev, {A. N.} and T. Hashimoto and Kondev, {F. G.} and Lane, {G. J.} and Litvinov, {Yu A.} and Liu, {J. J.} and H. Miyatake and Moon, {J. Y.} and Morales, {A. I.} and M. Mukai and S. Nishimura and T. Niwase and M. Rosenbusch and P. Schury and Y. Shi and M. Wada and Walker, {P. M.}",

note = "Publisher Copyright: {\textcopyright} 2021 The Authors",

year = "2021",

month = mar,

day = "10",

doi = "10.1016/j.physletb.2021.136088",

language = "English",

volume = "814",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier B.V.",

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Watanabe, H, Watanabe, YX, Hirayama, Y, Andreyev, AN, Hashimoto, T, Kondev, FG, Lane, GJ, Litvinov, YA, Liu, JJ, Miyatake, H, Moon, JY, Morales, AI, Mukai, M, Nishimura, S, Niwase, T, Rosenbusch, M, Schury, P, Shi, Y, Wada, M & Walker, PM 2021, 'Beta decay of the axially asymmetric ground state of ¹⁹²Re', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 814, 136088. https://doi.org/10.1016/j.physletb.2021.136088

TY - JOUR

T1 - Beta decay of the axially asymmetric ground state of 192Re

AU - Watanabe, H.

AU - Watanabe, Y. X.

AU - Hirayama, Y.

AU - Andreyev, A. N.

AU - Hashimoto, T.

AU - Kondev, F. G.

AU - Lane, G. J.

AU - Litvinov, Yu A.

AU - Liu, J. J.

AU - Miyatake, H.

AU - Moon, J. Y.

AU - Morales, A. I.

AU - Mukai, M.

AU - Nishimura, S.

AU - Niwase, T.

AU - Rosenbusch, M.

AU - Schury, P.

AU - Shi, Y.

AU - Wada, M.

AU - Walker, P. M.

PY - 2021/3/10

Y1 - 2021/3/10

N2 - The β decay of 75192Re117, which lies near the boundary between the regions of predicted prolate and oblate deformations, has been investigated using the KEK Isotope Separation System (KISS) in RIKEN Nishina Center. This is the first case in which a low-energy beam of rhenium isotope has been successfully extracted from an argon gas-stopping cell using a laser-ionization technique, following production via multi-nucleon transfer between heavy ions. The ground state of 192Re has been assigned Jπ=(0−) based on the observed β feedings and deduced logft values towards the 0+ and 2+ states in 192Os, which is known as a typical γ-soft nucleus. The shape transition from axial symmetry to axial asymmetry in the Re isotopes is discussed from the viewpoint of single-particle structure using the nuclear Skyrme-Hartree-Fock model.

AB - The β decay of 75192Re117, which lies near the boundary between the regions of predicted prolate and oblate deformations, has been investigated using the KEK Isotope Separation System (KISS) in RIKEN Nishina Center. This is the first case in which a low-energy beam of rhenium isotope has been successfully extracted from an argon gas-stopping cell using a laser-ionization technique, following production via multi-nucleon transfer between heavy ions. The ground state of 192Re has been assigned Jπ=(0−) based on the observed β feedings and deduced logft values towards the 0+ and 2+ states in 192Os, which is known as a typical γ-soft nucleus. The shape transition from axial symmetry to axial asymmetry in the Re isotopes is discussed from the viewpoint of single-particle structure using the nuclear Skyrme-Hartree-Fock model.

KW - Axial asymmetry

KW - Re

KW - Shape transition

KW - β decay

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U2 - 10.1016/j.physletb.2021.136088

DO - 10.1016/j.physletb.2021.136088

M3 - Article

SN - 0370-2693

VL - 814

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

M1 - 136088

ER -

Beta decay of the axially asymmetric ground state of ¹⁹²Re

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