论文标题
在未来的Lepton Colleders上搜索带有远见的长寿命
Search for long-lived axions with far detectors at future lepton colliders
论文作者
论文摘要
在我们以前的工作中[物理学。 Rev. D 101（2020）075046]，我们建议在电子正电子对撞机（FADEPC）上安装远探测器，以增强长寿命颗粒（LLP）的发现潜力。在这项研究中，我们考虑了八个具有不同位置，体积和几何形状的远处检测器的设计，并通过该过程$ e^-e^-e^-e^-e^+ rightRowγ\，\，\，a，〜a a，〜a a \至未来的$ e^at^a^at a^e^e^^e^e^{+ conter，调查了它们通过$ e^-e^+ rightArrowγ\，a，a，a，a，colter的可能性，调查其潜在发现长寿命的轴心样颗粒（ALP）的潜力。 16、150和750 ab $^{ - 1} $的集成亮度为16、150和750。我们根据有效的Alp-Photon-Photon耦合$ C_ {γγ} /λ$，有效的Alp-Photon- $ Z $ z $ cOpling $ c_ {γzz} /λ$和Alp Mass $ m_a $ for Thenicals cemict $ c_ $ c_ {$ m_a; $ c_ {γz} = c_ {γγ} $以及$ c_ {γz} $和$ c_ {γγ} $都可以自由更改。结果为未来的电子 - 尖齿子山液壁上的远探测器进行优化提供了参考。
In our previous work [Phys. Rev. D 101 (2020) 075046], we have proposed to install FAr Detectors at the Electron Positron Collider (FADEPC) to enhance the discovery potential of long-lived particles (LLPs). In this study, we consider eight designs of far detectors with different locations, volumes and geometries and investigate their potential for discovering long-lived axion-like particles (ALPs) via the process $e^-e^+ \rightarrow γ\,\, a,~ a \to γγ$ at future $e^{-}e^{+}$ colliders running at a center-of-mass energy of 91.2 GeV and integrated luminosities of 16, 150, and 750 ab$^{-1}$. We estimate their sensitivities on the model parameters in terms of the effective ALP-photon-photon coupling $C_{γγ} / Λ$, the effective ALP-photon-$Z$ coupling $C_{γZ} / Λ$, and ALP mass $m_a$ for three physics scenarios: $C_{γZ} = 0$; $C_{γZ} = C_{γγ}$ and both $C_{γZ}$ and $C_{γγ}$ can freely change. The results provide references for the optimization of far detectors at future electron-positron colliders.
