arXivDaily arXiv每日学术速递 周一至周五更新
北美退伍军人节(Veterans Day),12 日无更新
arXiv 1309.7679physics.ins-dethep-ex
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下一代$μ -> e γ$和$μ -> 3e$ CLFV搜索实验

The next generation of $μ -> e γ$ and $μ -> 3e$ CLFV search experiments

Chih-hsiang. Cheng, Bertrand Echenard, David G. Hitlin

摘要:

我们探讨了扩展目前的带电轻子味违反衰变$μ -> e γ$和$μ -> eee$搜索的灵敏度的可能性。未来的设施,如费米实验室的X项目,可以提供更强的停止$μ^+$光束,促进更灵敏的搜索,但也需要改进的探测器。目前的搜索受到偶然和物理背景的限制,以及被阻止的μ子的总数。用于$μ -> e γ$搜索的当前检测器中的限制因素之一是量热计的光子能量分辨率。我们提出了一个新的快速蒙特卡罗模拟的概念设计的一个新的实验概念,检测转换$e^+e^-$对信号光子,利用改进的能量分辨率对光谱仪的基础上硅带电粒子跟踪器。我们还研究了下一代$μ\to eee$搜索实验的相关检测器设计。

英文摘要:

We explore the possibilities for extending the sensitivity of current searches for the charged lepton flavor violating decays $μ -> e γ$ and $μ -> eee$. A future facility such as Project X at Fermilab could provide a much more intense stopping $μ^+$ beam, facilitating more sensitive searches, but improved detectors will be required as well. Current searches are limited by accidental and physics backgrounds, as well as by the total number of stopped muons. One of the limiting factors in current detectors for $μ -> e γ$ searches is the photon energy resolution of the calorimeter. We present a new fast Monte Carlo simulation of a conceptual design of a new experimental concept that detects converted $e^+e^-$ pairs from signal photons, taking advantage of the improved energy resolution of a pair spectrometer based on a silicon charged particle tracker. We also study a related detector design for a next generation $μ\to eee$ search experiment.

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。

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