New limits on dinucleon decay into invisible channels
New limits on dinucleon decay into invisible channels
复制标题
双核子衰变成不可见通道的新限制
DOI：
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发表时间：
2004
期刊：
影响因子：
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通讯作者：
Y. Zdesenko
中科院分区：
文献类型：
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作者：
V. Tretyak;V. Denisov;Y. Zdesenko
本文对地下深层积累的1.7 t KC2H3O2的放射化学实验数据（E.L. Fireman, 1978）进行了重新分析，以确定二核子（nn和np）向不可见通道（消失、衰变为中微子等）衰变的极限。得到的寿命界τnpτ；2.1×1025 yr和τnnτ；4.2×1025 yr（在90% C.L.时）比最近的实验中建立的更好（或有竞争力）。
Data of the radiochemical experiment (E.L. Fireman, 1978) with 1.7 t of KC2H3O2, accumulated deep underground during ≃ 1 yr, were reanalyzed to set limits on dinucleon (nn and np) decays into invisible channels (disappearance, decay into neutrinos, etc.). The obtained lifetime bounds τnpτ; 2.1×1025 yr and τnnτ;4.2×1025 yr (at 90% C.L.) are better (or competitive) than those established in the recent experiments.