中子与7Be的相互作用："原初7Li问题"缺乏标准核物理解释
核实验
2018-12-27 v1
摘要
中子对7Be的摧毁代表了降低原初7Li预言丰度、从而试图解决宇宙学7Li问题的最后一条标准途径。我们讨论了在以色列Soreq应用研究加速器装置(SARAF)开展的实验结果，其中我们测量了7Be(n,p)、7Be(n,a)和7Be(n,ga)反应的麦克斯韦平均截面(MACS)。我们在大爆炸核合成(BBN)能窗49.5 keV处测得的MACS表明，"原初7Li问题"缺乏标准核物理解释。
引用
@article{arxiv.1812.09914,
title = {The Interaction of Neutrons With 7Be: Lack of Standard Nuclear Physics Solution to the "Primordial 7Li Problem"},
author = {Moshe Gai},
journal= {arXiv preprint arXiv:1812.09914},
year = {2018}
}
备注
Talk presented on behalf of the SARAF US-Israel, Switzerland Collaboration at Nuclear Physics in Astrophysics (NPA8), 18-23 June 2017, Catania, Italy, that was reviewed by two referees and accepted for publication in NPA6, EPJA, 2017