HYPERFINE STRUCTURE PARAMETERS FOR COMPLEX ATOMS WITHIN RELATIVISTIC MANY-BODY PERTURBATION THEORY

Автор(и)

  • M. Makushkina
  • O. Antoshkina
  • O. Khetselius

DOI:

https://doi.org/10.18524/0235-2435.2020.29.225493

Ключові слова:

Hyperfine structure, Heavy atoms, Relativistic perturbation theory, correlation, nuclear, radiative corrections

Анотація

Представлені результати розрахунків параметрів надтонкої структури (НТС) атома Mn (рівні конфігурації 3d64s) і результати уточненого обчислення а констант НТС і квадрупольного моменту ядра для ізотопу радію  на основі релятивістської багаточастинкової теорії збурень з ефективним акуратним урахуванням обмінно-кореляційних, релятивістських, ядерних і радіаційних поправок. Аналіз даних показує, що урахування ефектів міжелектронної кореляції має критичне значення при обчисленні параметрів надтонкої структури. Фізично розумне узгодження теорії і прецизійного експерименту може бути забезпечено завдяки повному послідовному обліку міжелектронних кореляційних ефектів, ядерних, релятивістських та радіаційних поправок. Ключова відмінність між результатами розрахунків в наближеннях Дірака-Фока, різних версіях формалізму теорії збурень в основному пов'язано з використанням різних схем обліку міжелектронних кореляцій, а також врахування ядерних і радіаційних поправок.

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2021-02-26

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