# Reduced Transition Probabilities for the Gamma Decay of the 7.8 eV Isomer in ^{229}Th.

@article{Minkov2017ReducedTP,
title={Reduced Transition Probabilities for the Gamma Decay of the 7.8 eV Isomer in ^\{229\}Th.},
journal={Physical review letters},
year={2017},
volume={118 21},
pages={
212501
}
}
• Published 2017
• Physics, Medicine
• Physical review letters
The reduced magnetic dipole and electric quadrupole transition probabilities for the radiative decay of the ^{229}Th 7.8  eV isomer to the ground state are predicted within a detailed nuclear-structure model approach. We show that the presence and decay of this isomer can only be accounted for by the Coriolis mixing emerging from a remarkably fine interplay between the coherent quadrupole-octupole motion of the nuclear core and the single-nucleon motion within a reflection-asymmetric deformed… Expand

#### Figures, Tables, and Topics from this paper

Electric quadrupole channel of the 7.8 eV 229 Th transition
• Physics
• 2018
The unique isomeric transition at 7.8 eV in $~^{229}\mathrm{Th}$ has a magnetic dipole ($M1$) and an electric quadrupole ($E2$) multipole mixing. So far, the $E2$ component has been widelyExpand
Theoretical Predictions for the Magnetic Dipole Moment of ^{229m}Th.
• Medicine, Physics
• Physical review letters
• 2019
A new theoretical prediction based on a nuclear model with coupled collective quadrupole-octupole and single-particle motions is presented, providing further information on the role and strength of the Coriolis mixing and the most probable value of the gyromagnetic ratio. Expand
Energy of the ^{229}Th Nuclear Clock Isomer Determined by Absolute γ-ray Energy Difference.
The low-lying isomeric state of ^{229}Th provides unique opportunities for high-resolution laser spectroscopy of the atomic nucleus and is determined by taking the absolute energy difference between the excitation energy required to populate the 29.2-keV state and the energy emitted in its decay to the isomersic excited state. Expand
The thorium-229 low-energy isomer and the nuclear clock
• Physics
• 2021
The 229Th nucleus has an isomeric state at an energy of about 8 eV above the ground state, several orders of magnitude lower than typical nuclear excitation energies. This has inspired theExpand
Toward an energy measurement of the internal conversion electron in the deexcitation of the 229 Th isomer
The first excited isomeric state of Th-229 has an exceptionally low energy of only a few eV and could form the gateway to high-precision laser spectroscopy of nuclei. The excitation energy of theExpand
Nuclear Charge Radii of ^{229}Th from Isotope and Isomer Shifts.
This work carries out isotope shift calculations in Th^{+} and Th^{2+} including the specific mass shift, using a combination of configuration interaction and all-order linearized coupled-cluster methods and estimates the uncertainty of this approach. Expand
Excitation of ^{229m}Th at Inelastic Scattering of Low Energy Electrons.
• E. Tkalya
• Physics, Medicine
• Physical review letters
• 2020
The cross section of the time reversed process is large, and as a consequence, the probability of the nonradiative ^{229m}Th decay via the conduction electrons in metal is close to the internal conversion probability in the Th atom. Expand
Laser spectroscopic characterization of the nuclear-clock isomer 229mTh
The laser spectroscopic investigation of the hyperfine structure of the doubly charged 229mTh ion and the determination of the fundamental nuclear properties of the isomer, namely, its magnetic dipole and electric quadrupole moments, as well as its nuclear charge radius are presented. Expand
Energy of the 229Th nuclear clock transition
The method combines nuclear and atomic physics measurements to advance precision metrology, and the findings are expected to facilitate the application of high-resolution laser spectroscopy on nuclei and to enable the development of a nuclear optical clock of unprecedented accuracy. Expand
Alternative approach to populate and study the Th229 nuclear clock isomer
A new approach to observe the radiative decay of the $^{229}$Th nuclear isomer, and to determine its energy and radiative lifetime, is presented. Situated at a uniquely low excitation energy, thisExpand

#### References

SHOWING 1-2 OF 2 REFERENCES
L
• von der Wense, and P. G. Thirolf, Phys. Rev. Lett. 118, 042501
• 2017
Phys
• Rev. A 95, 032503
• 2017