Institute of Theoretical Physics

Chinese Academy of Sciences

State Key Laboratory of Theoretical Physics

Seminar

Title

题目

Probing Supernovae with radioactive beam measurements, simulations, theory, and data

Speaker

报告人

Dr. Michael S. Smith
　

Affiliation

所在单位

Physics Division, Oak Ridge National Laboratory

Date

日期

10:00, Jun 29 (Mon), 2015

Venue

地点

理论所新楼6420会议室

Abstract

摘要

Measurements with radioactive beams are a frontier in experimental nuclear physics and are often motivated by their relevance for understanding stellar explosions. We have used beams of exotic Sn nuclei that are unique in the world to make a series of transfer reaction measurements that are important for the rapid neutron capture process in supernovae. To use such measurements to improve our knowledge of the energy generation and element synthesis occurring in these cataclysmic events, parallel developments are needed in astrophysical simulations, nuclear theory, and nuclear data. Our recent progress will be presented, including: our measurement approaches and results; our calculations to understand the evolution of structure, bound and unbound levels, and level densities; and our nuclear reaction calculations to determine neutron capture cross sections. Our future work will include performing astrophysical simulations with the new information using an online suite of codes, studying the impact of deformation on cross sections, and quantifying the uncertainties of our predictions.

Contact Personn

所内合作者