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arXiv 1106.4968hep-phquant-ph
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多体相互作用引起的中微子衍射

Neutrino diffraction induced by many body interaction

Kenzo Ishikawa, Yutaka Tobita

摘要:

介子衰变中产生的中微子,在中间时间区域,当母子体的波函数重叠时,揭示了一种新的多体相互作用衍射现象。由于衍射的存在,探测到中微子的概率需要一个很大的有限尺寸修正,这个修正取决于中微子的质量$m_ν$和能量$E_ν$,光速$c$,以及初始π介子和末态中微子之间的距离$L$。在地面实验中,带电轻子的修正为零,中微子的修正在近探测器区域的宏观距离$L$处是有限的。本文提出了一种测定中微子绝对质量的新方法。

英文摘要:

The neutrino produced in the pion decay reveals a new diffraction phenomenon due to many-body interactions in an intermediate time region when wave functions of the parent and daughters overlap. Because of diffraction, the probability to detect the neutrino involves a large finite-size correction that depends on the neutrino mass, $m_ν$ and energy, $E_ν$, the speed of light, $c$, and the distance $L$ between the positions of the initial pion and final neutrino, ${m_ν^2c^4 L}/{(2E_ν\hbar)}$. The correction vanishes for the charged leptons and is finite for the neutrino at a macroscopic distance, $L$, of near-detector regions in ground experiments. A new method for determining the absolute neutrino mass is proposed.

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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