论文标题
在韩国耶米拉布的黑暗光子搜索
Dark Photon Search at Yemilab, Korea
论文作者
论文摘要
深色光子是动机充分的假设黑暗扇形颗粒，可以解释观察值，这些观察值无法通过粒子物理的标准模型来解释。提出了搜索由撞击厚的钨靶的电子光束产生的深色光子，随后在耶米拉布（Yemilab）的3千座尺度中微子检测器中相互作用，Yemilab提出了新的地下实验室。暗光子可以由“ Darkstrahlung”或来自目标中产生的普通光子并通过其可见衰减，“吸收”或它们对普通光子的振荡检测而产生的。 By detecting the absorption process or the oscillation-produced photons, a world's best sensitivity for measurements of the dark-photon kinetic mixing parameter of $ε^2 > 1.5 \times 10^{-13} (6.1 \times 10^{-13})$ at the 95\% confidence level (C.L.) could be obtained for dark photon masses between 80 eV and 1 MeV in a year-long暴露于100 MEV-100 kW电子束，其背景事件为零（$ 10^3 $）。同时，$ e^+e^ - $对$ $ $的检测是从1 meV至$ \ sim $ 86 meV之间的黑暗光子衰减中的检测，其灵敏度为$ε^2> \ MATHCAL {o}（10^{ - 17}）（10^{ - 17}）（\ Mathcal {O}（o）零（$ 10^3 $）背景事件。
Dark photons are well motivated hypothetical dark sector particles that could account for observations that cannot be explained by the standard model of particle physics. A search for dark photons that are produced by an electron beam striking a thick tungsten target and subsequently interact in a 3 kiloton-scale neutrino detector in Yemilab, a new underground lab in Korea, is proposed. Dark photons can be produced by "darkstrahlung" or by oscillations from ordinary photons produced in the target and detected by their visible decays, "absorption" or by their oscillation to ordinary photons. By detecting the absorption process or the oscillation-produced photons, a world's best sensitivity for measurements of the dark-photon kinetic mixing parameter of $ε^2 > 1.5 \times 10^{-13} (6.1 \times 10^{-13})$ at the 95\% confidence level (C.L.) could be obtained for dark photon masses between 80 eV and 1 MeV in a year-long exposure to a 100 MeV-100 kW electron beam with zero ($10^3$) background events. In parallel, the detection of $e^+e^-$ pairs from decays of dark photons with mass between 1 MeV and $\sim$86 MeV would have sensitivities of $ε^2 > \mathcal{O}(10^{-17}) (\mathcal{O}(10^{-16}))$ at the 95% C.L. with zero ($10^3$) background events.
