摘要
一个新的β延迟质子先驱核^(65)Se,可能已由^(40)Ca(^(28)Si,3n)^(65)Se反应产生,并通过其延迟质子发射而被鉴定出,单质子能量在3.75±0.05MeV,半衰期为10.8±_(3.7)~4.1ms,它对应于^(65)Se的超允许β^+衰变到^(65)As的同位旋相似态(^(65)As中最低的T=(3/2)态),并再由此态到^(64)Ge基态的质子跃迁.由于缺乏足够的统计计数,有必要做进一步的实验努力,去验证这一发现.
A new beta-delayed proton precussor ^(65)Se has was probably produced via the reaction ^(4(?))Ca (^(2(?))Si, 3n) ^(65)Se and identified from its beta-delayed proton emission. A single proton group at 3.75±0.05 MeV with half-life of 10.8±4.1 3.7ms was observed, corresponding to superallowed beta decay of ^(65)Se to the isobaric analog state of ^(65)As (the lowest T = 3/2 state in ^(65)As) then proton emitting to the ground state of ^(64)Ge. Because of poor statistics further experimental effort is required to confirm this discovery.
出处
《高能物理与核物理》
CSCD
北大核心
1989年第2期156-163,共8页
High Energy Physics and Nuclear Physics
基金
国家自然科学基金
