AI 中文总结
本研究在未来μp对撞机上，针对T→tZ衰变道，通过蒙特卡罗模拟推导排除限与发现轮廓，揭示该道对探测高质量类矢量T夸克具有独特优势。
AI 中文摘要
我们研究了在未来缪子-质子（μp）对撞机上，单产生的类矢量顶夸克T在T→tZ衰变道中的发现潜力，考虑了三个基准质心系能量：√s=5.29、6.48和9.16 TeV。基线信号末态包含半轻子型顶夸克衰变t→bW→bℓν，以及强子型Z玻色子衰变Z→q\bar{q}，其中Z玻色子产生的准直夸克对被重建为单个大半径 fat 喷注J。对信号过程和主导的标准模型本底都进行了完整的探测器级蒙特卡罗模拟。我们在由类矢量夸克质量m_T和有效耦合g^*构成的二维参数空间中推导了5σ发现轮廓和95%置信水平排除限。与T→Wb道及其他对撞机设施的搜索结果对比表明，T→tZ衰变道具有互补的灵敏度，且在 boosted 喷注拓扑中为探测高质量类矢量T夸克提供了独特优势。
英文摘要
We investigate the discovery potential of a singly produced vector-like top quark $T$ in the $T\to tZ$ decay channel at future muon-proton ($μp$) colliders, considering three benchmark center-of-mass energies: $\sqrt{s}=5.29$, $6.48$, and $9.16$~TeV. The baseline signal final state consists of a semileptonic top decay $t\to bW\to b\ellν$ and a hadronic $Z\to q\bar{q}$ decay, where the collimated quark pair from the $Z$ boson is reconstructed as a single large-radius fat jet $J$. Full detector-level Monte Carlo simulations are performed for both the signal process and the dominant Standard Model backgrounds. We derive the $5σ$ discovery contours and the $95\%$ confidence level exclusion limits in the two-dimensional parameter space spanned by the VLQ mass $m_T$ and the effective coupling $g^*$. A comparison with the $T\to Wb$ channel and with searches at other collider facilities reveals that the $T\to tZ$ decay mode provides complementary sensitivity and offers unique advantages for probing high-mass vector-like $T$ quarks in the boosted jet topology.
Comments21 pages,5 figures, to be published in Chinese Physics C
