Electron Capture and Bound-State $β$ Decays in Ions and Plasma
Fuente:
arXiv
Salvato in:
| Autori principali: | , , , , |
|---|---|
| Natura: | Preprint |
| Pubblicazione: |
2024
|
| Soggetti: | |
| Accesso online: | |
| Tags: |
Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
|
| _version_ | 1866911194194903040 |
|---|---|
| author | Mishra, Bharat Pidatella, Angelo Taioli, Simone Simonucci, Stefano Mascali, David |
| author_facet | Mishra, Bharat Pidatella, Angelo Taioli, Simone Simonucci, Stefano Mascali, David |
| contents | We present a new theory describing the variation of electron capture and bound-state $β$-decays in atomic ions and (non) local thermodynamic equilibrium ((N)LTE) plasmas. We adopt the Takahashi-Yokoi nuclear model with added corrections to first calculate the decay rate for each atomic configuration of the isotope, and then evaluate the in-plasma decay rate by combining them with the charge state distribution (CSD) consistent with plasma density and temperature. Our approach expands the thermodynamic parameter space in which in-plasma $β$-decays can be studied, opening the possibility to validate the model in low-density laboratory magnetoplasmas before application to stellar nucleosynthesis. The model is explained using $^{7}$Be, and then applied to higher mass isotopes such as $^{140}$Pr$^{0+,57+,58+}$, $^{142}$Pm$^{0+,59+,60+}$ and $^{163}$Dy$^{66+}$. Our model is therefore amenable to isotopes in a wide range of masses, in both single charge state or in a plasma-generated CSD. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2407_01787 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Electron Capture and Bound-State $β$ Decays in Ions and Plasma Mishra, Bharat Pidatella, Angelo Taioli, Simone Simonucci, Stefano Mascali, David Plasma Physics Nuclear Theory Atomic Physics We present a new theory describing the variation of electron capture and bound-state $β$-decays in atomic ions and (non) local thermodynamic equilibrium ((N)LTE) plasmas. We adopt the Takahashi-Yokoi nuclear model with added corrections to first calculate the decay rate for each atomic configuration of the isotope, and then evaluate the in-plasma decay rate by combining them with the charge state distribution (CSD) consistent with plasma density and temperature. Our approach expands the thermodynamic parameter space in which in-plasma $β$-decays can be studied, opening the possibility to validate the model in low-density laboratory magnetoplasmas before application to stellar nucleosynthesis. The model is explained using $^{7}$Be, and then applied to higher mass isotopes such as $^{140}$Pr$^{0+,57+,58+}$, $^{142}$Pm$^{0+,59+,60+}$ and $^{163}$Dy$^{66+}$. Our model is therefore amenable to isotopes in a wide range of masses, in both single charge state or in a plasma-generated CSD. |
| title | Electron Capture and Bound-State $β$ Decays in Ions and Plasma |
| topic | Plasma Physics Nuclear Theory Atomic Physics |
| url | https://arxiv.org/abs/2407.01787 |