arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 2001.04431hep-ex
收藏

μ子对撞机上的探测器和物理性能

Detector and Physics Performance at a Muon Collider

Nazar Bartosik, Alessandro Bertolin, Laura Buonincontri, Massimo Casarsa, Francesco Collamati, Alfredo Ferrari, Anna Ferrari, Alessio Gianelle, Donatella Lucche… 展开作者

Nazar Bartosik, Alessandro Bertolin, Laura Buonincontri, Massimo Casarsa, Francesco Collamati, Alfredo Ferrari, Anna Ferrari, Alessio Gianelle, Donatella Lucchesi, Nikolai Mokhov, Mark Palmer, Nadia Pastrone, Paola Sala, Lorenzo Sestini, Sergei Striganov

摘要:

μ子对撞机是通过碰撞基本粒子达到非常高的质心能量和亮度的理想机器。这是由于与线性或圆形电子-正电子对撞机相比,束辐射和同步辐射水平较低。与其他轻子机相比,多TeV μ子对撞机的探测器的设计需要的相互作用区域的知识,由于存在大量的背景诱导的μ子束衰变。只有当探测器的性能确定后,才能正确评估物理范围。在这项工作中,由$750$ GeV的μ子束产生的背景的特点和跟踪系统和量能计探测器的性能进行了说明。解决方案,以尽量减少光束引起的背景的影响进行了讨论和应用,以获得跟踪和喷注重建性能。的$μ^+μ^-\to Hν\barν\to b\bar b ν\barν$过程进行了充分的模拟和重建,以证明在这种恶劣的环境中,物理测量是可能的。希格斯玻色子耦合$b\bar b$的精度进行评估为$\sqrt{s}=1.5$,3,和10 TeV,并与其他建议的机器。

英文摘要:

A muon collider represents the ideal machine to reach very high center-of-mass energies and luminosities by colliding elementary particles. This is the result of the low level of beamstrahlung and synchrotron radiation compared to linear or circular electron-positron colliders. In contrast with other lepton machines, the design of a detector for a multi-TeV muon collider requires the knowledge of the interaction region due to the presence of a large amount of background induced by muon beam decays. The physics reaches can be properly evaluated only when the detector performance is determined. In this work, the background generated by muon beams of $750$ GeV is characterized and the performance of the tracking system and the calorimeter detector are illustrated. Solutions to minimize the effect of the beam-induced background are discussed and applied to obtain track and jet reconstruction performance. The $μ^+μ^-\to Hν\barν\to b\bar b ν\barν$ process is fully simulated and reconstructed to demonstrate that physics measurements are possible in this harsh environment. The precision on Higgs boson coupling to $b\bar b$ is evaluated for $\sqrt{s}=1.5$, 3, and 10 TeV and compared to other proposed machines.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑