7–13 Sept 2024
Asia/Shanghai timezone
The third circular has been released.

Improved proton capture reaction rates in the rp-process

9 Sept 2024, 13:55
15m
Oral Talk Theoretical Nuclear Physics for Astrophysics Theoretical Nuclear Physics for Astrophysics

Speaker

Suqing HOU (Institute of Modern Physics, Chinese Academy of Sciences)

Description

Accurate proton capture reaction rates are pivotal for a comprehensive understanding of the rp-process. However, the uncertainties of some proton capture rates are influenced significantly by the relevant nuclear masses, especially for those proton-rich nuclei along the rp-process path. Using the high-precision nuclear masses of 27, 29S, 27P, and 43V isotopes measured at the Heavy Ion Research Facility in Lanzhou, we updated the respective proton capture rate and derived the associated rate uncertainties. The influences of these new rates in the rp-process are explored by a series of postprocessing nucleosynthesis calculations. The specific astrophysical implications for each new rate will be discussed.

Primary author

Suqing HOU (Institute of Modern Physics, Chinese Academy of Sciences)

Co-authors

Carlos BERTULANI (Texas A&M University - Commerce) Christian ILIADIS (University of North Carolina at Chapel Hill) Jianguo LI (Institute of Modern Physics, Chinese Academy of Sciences) Jinbo LIU (Institute of Modern Physics, Chinese Academy of Sciences) Jordi JOSÉ (Universitat Politècnica de Catalunya) Marco PIGNATARI (Konkoly Observatory) Richard LONGLAND (North Carolina State University) Thomas TRUEMAN (Konkoly Observatory) Xinxing XU (Institute of Modern Physics, Chinese Academy of Sciences)

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