New Method of Enhancing Lepton Number Nonconservation
New Method of Enhancing Lepton Number Nonconservation
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增强轻子数不守恒的新方法
DOI：
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发表时间：
2005
期刊：
影响因子：
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通讯作者：
M. Yoshimura
中科院分区：
文献类型：
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作者：
M. Ikeda;I. Nakano;M. Sakuda;R. Tanaka;M. Yoshimura
在强激光照射下，重原子中的轻子数非守恒(Lennon)转变为e^+，从而决定了中微子质量的Majorana性质和精确值。当光子能量被微调时，由于共振效应和大量的光子占据，列侬过程得到极大的增强。这个过程的信号将是一定能量的正电子，在过渡到激发核能级的有利情况下，将是另一个核伽马射线。通过构建一个统一的目标-探测器系统，可以探索具有良好正电子能量分辨率的中微子质量参数的$O[1 meV]$范围。
The lepton number nonconserving (LENNON) conversion of type $ e^- \to e^+$ in heavy atoms, when irradiated by intense laser beam, is considered to determine the Majorana nature and precise values of neutrino masses. When the photon energy is fine tuned, the LENNON process is greatly enhanced by both the resonance effect and a large occupancy of photons. The signal of this process would be a positron of definite energy, and a further nuclear $\gamma$-ray in a favorable case of transition to an excited nuclear level. By constructing a united target-detector system, it is possible to explore $O[1meV]$ range of the neutrino mass parameter with a good positron energy resolution.