TY - JOUR

T1 - Calculations of the Binding-Energy Differences for Highly-Charged Ho and Dy Ions

AU - Савельев, Игорь Михайлович

AU - Кайгородов, Михаил Юрьевич

AU - Кожедуб, Юрий Сергеевич

AU - Тупицын, Илья Игоревич

AU - Шабаев, Владимир Моисеевич

PY - 2023/7/17

Y1 - 2023/7/17

N2 - The binding-energy differences for 163Hoq+ and 163Dyq+ ions with ionization degrees q = 38, 39, and 40 are calculated. The calculations are performed using the large-scale relativistic configuration-interaction and relativistic coupled-clusters methods. The contributions from quantum-electrodynamics, nuclear-recoil, and frequency-dependent Breit-interaction effects are taken into account. The final uncertainty does not exceed 1 eV. Combining the obtained results with the binding-energy difference for neutral atoms calculated in [I. M. Savelyev, M. Y. Kaygorodov, Y. S. Kozhedub, I. I. Tupitsyn, and V.M. Shabaev, Phys. Rev. A 105, 012806 (2022)], we get the secondary differences of the ion-atom binding energies. These values can be used to evaluate the amount of energy released in the electron capture process in 163Ho atom (the Q value), provided mass differences of highly charged ions 163Hoq+ and 163Dyq+ is known from experiment. The Q value is required by experiments on the determination of the absolute scale of the electron neutrino mass by studying the beta-decay process.

AB - The binding-energy differences for 163Hoq+ and 163Dyq+ ions with ionization degrees q = 38, 39, and 40 are calculated. The calculations are performed using the large-scale relativistic configuration-interaction and relativistic coupled-clusters methods. The contributions from quantum-electrodynamics, nuclear-recoil, and frequency-dependent Breit-interaction effects are taken into account. The final uncertainty does not exceed 1 eV. Combining the obtained results with the binding-energy difference for neutral atoms calculated in [I. M. Savelyev, M. Y. Kaygorodov, Y. S. Kozhedub, I. I. Tupitsyn, and V.M. Shabaev, Phys. Rev. A 105, 012806 (2022)], we get the secondary differences of the ion-atom binding energies. These values can be used to evaluate the amount of energy released in the electron capture process in 163Ho atom (the Q value), provided mass differences of highly charged ions 163Hoq+ and 163Dyq+ is known from experiment. The Q value is required by experiments on the determination of the absolute scale of the electron neutrino mass by studying the beta-decay process.

UR - https://www.mendeley.com/catalogue/efd40932-2aa8-311f-bfe1-e9cd818ed21f/

U2 - 10.1134/S0021364023601975

DO - 10.1134/S0021364023601975

M3 - Article

VL - 118

SP - 87

EP - 91

JO - JETP Letters

JF - JETP Letters

SN - 0021-3640

IS - 2

ER -