用激光辅助光靶寻找长寿命轴子样粒子
Searching for long-lived ALPs with a laser-assisted optical dump
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中文总结 AI 辅助
研究通过激光辅助光靶探测质量为MeV～GeV的长寿命轴子样粒子，考虑其低能有效拉格朗日量，扩展光靶搜索范围至相关过程，研究普里马科夫过程与康普顿散射相关性及两种耦合相互作用。
中文摘要 AI 辅助
轻轴子样粒子（ALPs）的微弱相互作用使其具有长寿命。探测长寿命ALPs需要有宏观衰变体积的设施来匹配其可能的长衰变长度，如高强度束流卸料实验。利用高能电子束与高强度激光脉冲碰撞产生的硬光子，提出了一种光靶装置。在这项工作中，我们通过激光辅助光靶重新研究了质量为MeV～GeV的长寿命ALPs的探测。我们考虑了包含ALP-光子和ALP-费米子相互作用的ALPs的低能有效拉格朗日量。光靶搜索的范围扩展到ALP-光子耦合诱导的普里马科夫过程和通过ALP-电子耦合的类康普顿散射。我们还研究了普里马科夫过程与康普顿散射之间的相关性，并根据光靶实验展示了两种ALP耦合的相互作用。
英文摘要
The feeble interactions of light axion-like particles (ALPs) render them long-lived. Probing long-lived ALPs therefore demands facilities with a macroscopic decay volume to match their potentially long decay lengths, such as high-intensity beam dump experiments. An optical dump setup was proposed by utilizing hard photons from the collision of a high-energy electron beam and a high-intensity laser pulse. In this work, we revisit the probe of long-lived ALPs with MeV$\sim$ GeV mass via a laser-assisted optical dump. We consider the low-energy effective Lagrangian for ALPs incorporating the ALP-photon and ALP-fermion interactions. The scope of optical dump searches is extended to both the ALP-photon coupling induced Primakoff process and the Compton-like scattering via the ALP-electron coupling. We also investigate the correlation between Primakoff process and Compton scattering, and exhibit the interplay of two ALP couplings in light of optical dump experiment.
发表机构
- School of Physics, Nankai University（南开大学物理学院）
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