# University of Hertfordshire

## Impacts of nuclear-physics uncertainty in stellar temperatures on the s-process nucleosynthesis

Research output: Chapter in Book/Report/Conference proceedingConference contribution

### Documents

• pdf

Accepted author manuscript, 617 KB, PDF document

• N. Nishimura
• G. Cescutti
• R. Hirschi
• T. Rauscher
• J. Den Hartogh
• A. St J. Murphy
Original language English JPS Conference Proceedings Proceedings of the 14th International Symposium on Nuclei in the Cosmos (NIC2016) Niigata, Japan The Physical Society of Japan 3 14 978-4-89027-118-4 https://doi.org/10.7566/JPSCP.14.020903 Published - 28 Feb 2017

### Publication series

Name JPS Conference Proceedings The Physical Society of Japan 02 14

### Abstract

We evaluated the uncertainty relevant to s-process nucleosynthesis using a Monte-Carlo centred approach. We are based on a realistic and general prescription of temperature dependent uncertainty for the reactions. We considered massive stars for the weak s-process and AGB stars for the main s-process. We found that the adopted uncertainty for (n,$\gamma$) rates, tens of per cent on average, affect the production of s-process nuclei along the $\beta$-stability line, while for $\beta$-decay, for which contributions from excited states enhances the uncertainty, has the strongest impact on branching points.

### Notes

N. Nishimura, G. Cescutti, R. Hirschi, T. Rauscher, J. Den Hartogh, and A. St J. Murphy, 'Impacts of nuclear-physics uncertainty in stellar temperatures on the s-process nucleosynthesis', in Proceedings of the 14th International Symposium on Nuclei in the Cosmos (NIC2016). Niigata, Japan. June 19-24, 2016. ISBN: 978-4-89027-118-4. DOI: http://dx.doi.org/10.7566/JPSCP.14.020903 © 2017 The Physical Society of Japan.

ID: 11269087