在μ介子衰变中寻找与宇宙学有关的玻色子
A search for a cosmologically-relevant boson in muon decay
摘要:
根据当今锗探测器技术,回顾了寻找轻子变味衰变$μ^{+}\!\!\rightarrow \!e^{+} X^{0}$的实验,着眼于长寿命、缓慢移动的大质量玻色子$X^{0}$可能产生宇宙学影响的场景。一个广泛的有趣的,未探索的参数空间非常接近的运动学极限的衰减被发现是一个新的建议搜索范围内。可以研究$X^{0}$在过去和现在时代的许多可能作用。
英文摘要:
Experiments looking for a lepton flavor-violating decay $μ^{+}\!\!\rightarrow \!e^{+} X^{0}$ are reviewed in light of present-day germanium detector technology, with an eye on scenarios where a long-lived, slow-moving massive boson $X^{0}$ might have a cosmological impact. A broad swath of interesting, unexplored parameter space very close to the kinematic limit of the decay is found to be within the reach of a new proposed search. A number of possible roles for $X^{0}$ in past and present epochs can be investigated.
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