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

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

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.

Original language	English
Article number	136088
Number of pages	6
Journal	Physics Letters B
Volume	814
Early online date	21 Jan 2021
DOIs	https://doi.org/10.1016/j.physletb.2021.136088
Publication status	Published - 1 Mar 2021

Bibliographical note

Keywords

Re
decay
Axial asymmetry
Shape transition

Access to Document

10.1016/j.physletb.2021.136088

Beta decay of the axially asymmetric ground state of 192Re
© 2021 The Authors.
Final published version, 513 KBLicence: CC BY

http://www.sciencedirect.com/science/article/pii/S0370269321000289

Nuclear Physics Consolidated Grant 2021-2024
Jenkins, D. (Principal investigator), Andreyev, A. (Co-investigator), Bashkanov, M. (Co-investigator), Bentley, M. (Co-investigator), Dobaczewski, J. J. (Co-investigator), Laird, A. M. (Co-investigator), Paschalis, S. (Co-investigator), Pastore, A. (Co-investigator), Petri, M. (Co-investigator), Wadsworth, R. (Co-investigator), Watts, D. (Co-investigator) & Zachariou, N. (Co-investigator)
SCIENCE AND TECHNOLOGY FACILITIES COUNCIL (STFC)
1/10/21 → 31/03/25
Project: Research project (funded) › Research

Cite this

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 B, 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 = "Re, decay, Axial asymmetry, Shape transition",

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

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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 B, vol. 814, 136088. https://doi.org/10.1016/j.physletb.2021.136088

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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 - 2021/3/1

Y1 - 2021/3/1

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 - Re

KW - decay

KW - Axial asymmetry

KW - Shape transition

U2 - 10.1016/j.physletb.2021.136088

DO - 10.1016/j.physletb.2021.136088

M3 - Article

SN - 0370-2693

VL - 814

JO - Physics Letters B

JF - Physics Letters B

M1 - 136088

ER -