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arXiv 0908.2980hep-ph
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为什么中微子线是超尖锐的

Why Neutrino Lines are Hypersharp

R. S. Raghavan

摘要:

最近有人指出,氚(τ ~ 18-y)的二体衰变产生的单能中微子谱线可以被发射出来,其中很大一部分具有自然线宽(~10-24 eV),用于3 H-><-3 He的超锐共振跃迁。非常长的寿命典型的中微子过渡,遇到的第一次共振,是这个令人惊讶的效果的关键,这是不直观的观点,在短寿命(τ ~微秒)状态的共振线加宽。

英文摘要:

It was recently pointed out that mono-energetic neutrino lines from the 2-body decay of tritium (tau ~ 18-y) can be emitted, a significant fraction, with natural line width (~10-24 eV) for hypersharp resonance transitions 3H--> <--3He. The very long lifetime typical of a neutrino transition, encountered for the first time in resonance, is the key to this surprising effect which is not intuitive from perspectives of line broadening in resonances of short lived (tau ~ microsec) states.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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