Formation of 3He in the reactions of stopped pion absorption

[摘要] The results of the measurements of spectra and yields of helium isotope3He formed in the stopped pion absorption by nuclei are presented. The contributions of different mechanisms of the helium formation in these reactions on medium and heavy nuclei were determined. The proposed phenomenological model reproduces the3He spectra at energies >30 MeV satisfactorily.

[发布机构] National Research Nuclear University MEPhI, Moscow Engineering Physics Institute, Kashirskoe highway 31, Moscow; 115409, Russia^1

[效力级别] 天文学 [学科分类] 天文学(综合)

[关键词] Different mechanisms;Heavy nucleus;Helium isotopes;Measurements of;Phenomenological modeling