Programme

P.9 -- Poster, VCTP-49

Date: Wednesday, 31 July 2024

Time: 08:30 - 10:00

The astrophysical $S$-factor from proton-deuteron radiative capture within potential model

Dao Nhut Anh (1), Do Huy Tho (1), Nguyen Le Anh (1), Nguyen Huu Nha (2)

(1) Department of Physics, Ho Chi Minh City University of Education, Ho Chi Minh City; (2) Department of Theoretical Physics, VNUHCM-University of Science, Ho Chi Minh City

The proton-deuteron radiative capture reaction significantly impacts primordial nucleosynthesis. The astrophysical $S$-factor is calculated using the phenomenological potential model for both electric dipole ($E1$) and magnetic dipole ($M1$) transitions. The results are validated against experimental data using a $\chi^2$ test, highlighting the significance of the $M1$ transition at low energies. The obtained astrophysical $S$-factor [1] is in good agreement with recent results, especially the experimental data reported by Mossa et al. [2]. References [1] N. Le Anh, D. Nhut Anh, D. Huy Tho, and N. Huu Nha (2024). Magnetic dipole transition in proton-deuteron radiative capture at BBN energies within potential model. Physica Scripta, 99, 065026. [2] V. Mossa et al. (2020). The baryon density of the Universe from an improved rate of deuterium burning. Nature, 587, 210-213.

Presenter: Dao Nhut Anh