著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) 日下部 元彦,New constraints on radiative decay of long-lived particles in big bang nucleosynthesis with new He4 photodisintegration data,Physical Review D 79,,,2009,,,,https://cir.nii.ac.jp/crid/1010282257458796436,