|
ИСТИНА |
Войти в систему Регистрация |
ИСТИНА ПсковГУ |
||
Tachyonic and parametric resonances for massive particle production in an intense scalar plane wave backgroundстатья
Статья опубликована в высокорейтинговом журнале
Статья опубликована в журнале из списка Web of Science и/или Scopus- Авторы: Dmitrieva Ekaterina, Satunin Petr
- Журнал: Physical Review D
- Том: 111
- Номер: 11
- Год издания: 2025
- Издательство: American Physical Society
- Местоположение издательства: United States
- Первая страница: 115032
- DOI: 10.1103/8g2f-kgml
- Аннотация: We investigate the stability of an intensive plane wave of a massless or light scalar field 𝜙 in a trilinear scalar model 𝑔𝜙𝜒2 due to the resonant production of massive 𝜒 particles in a perturbatively forbidden regime. We apply two methods. First, we solve the Heisenberg equation for the quantum amplitudes of the field 𝜒 in an external plane wave background, generalizing the solution of Arza [A. Arza, Production of massive bosons from the decay of a massless particle beam, Phys. Rev. D 105, 036004 (2022).]. Second, for the light but massive 𝜙, we perform the relativistic boost to the rest frame of 𝜙, reducing the problem to the stability of the thoroughly investigated massive condensate. It turns out that the stability properties are significantly different for the cases of massless and light fields. In the first case, one should adopt the Heisenberg equation approach, since the alternative method cannot provide a comprehensive outcome. In the second case, the use of the Mathieu equation provides a more accurate solution, while for the massless case, this approach is not applicable.
- Добавил в систему: Дмитриева Екатерина Алексеевна