标题： 未来$e^+e^-$对撞机、Muon$g-2$、热暗物质和希格斯测量中关于 ALP 耦合的综合约束 显示英文标题

标题： Comprehensive Constraints on ALP Couplings from future $e^+e^-$ Colliders, Muon $g-2$, Thermal Dark Matter and Higgs Measurements

摘要： 本文给出了未来在$e^+e^-$运行于$\sqrt{s} = 250~\text{GeV}$能量，积分亮度为$L = 0.5~\text{ab}^{-1}$时的粒子对撞机上，从类轴子粒子（ALP）产生得到的 ALP 藕合参数在 95% 置信水平下的限制。 我们约束了有效耦合常数 $g_{\gamma\gamma}$, $g_{Z\gamma}$, $g_{ZZ}$和 $g_{WW}$在 ALP 质量范围为 $20~\text{GeV} \leq m_a \leq 100~\text{GeV}$的情况下，发现在 $g_{\gamma\gamma}/f_a$水平上得到的投影界限为 $\mathcal{O}(10^{-1})~\text{TeV}^{-1}$。 We then focus on the $4\sigma$-favored region of the muon anomalous magnetic moment $\Delta a_\mu$, deriving corresponding bounds on $g_{\gamma\gamma}$ and the ALP-muon coupling $C_{\mu\mu}$, and applying them to a fermionic dark matter scenario in which the relic density depends on both $m_\chi$ and $m_a$. 相同的参数空间通过$h \to \gamma\gamma$和$h \to Z\gamma$进一步受到限制。 与现有实验和理论界限的对比分析突显了$\Delta a_\mu$、暗物质以及 Higgs 信号强度可观测量在约束 ALP 耦合中的互补性。 显示英文摘要

摘要： In this article, we present projected 95% C.L. limits on Axion-Like Particle (ALP) couplings from ALP production at a future $e^+e^-$ collider operating at $\sqrt{s} = 250~\text{GeV}$ with integrated luminosity $L = 0.5~\text{ab}^{-1}$. We constrain the effective couplings $g_{\gamma\gamma}$, $g_{Z\gamma}$, $g_{ZZ}$, and $g_{WW}$ over the ALP mass range $20~\text{GeV} \leq m_a \leq 100~\text{GeV}$, finding projected bounds at the level of $\mathcal{O}(10^{-1})~\text{TeV}^{-1}$ for $g_{\gamma\gamma}/f_a$. We then focus on the $4\sigma$-favored region of the muon anomalous magnetic moment $\Delta a_\mu$, deriving corresponding bounds on $g_{\gamma\gamma}$ and the ALP-muon coupling $C_{\mu\mu}$, and applying them to a fermionic dark matter scenario in which the relic density depends on both $m_\chi$ and $m_a$. The same parameter space is further constrained by Higgs signal strength measurements through $h \to \gamma\gamma$ and $h \to Z\gamma$. A comparative analysis with existing experimental and theoretical bounds highlights the complementarity of $\Delta a_\mu$, dark matter, and Higgs signal strengths observables in constraining ALP couplings.