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Search for Displaced Leptons ins=13TeVppCollisions with the ATLAS Detector
Physical Review Letters ( IF 8.6 ) Pub Date : 2021-07-27 , DOI: 10.1103/physrevlett.127.051802
G. Aadet al.(ATLAS Collaboration)

A search for charged leptons with large impact parameters using 139fb1 of s=13TeV pp collision data from the ATLAS detector at the LHC is presented, addressing a long-standing gap in coverage of possible new physics signatures. Results are consistent with the background prediction. This search provides unique sensitivity to long-lived scalar supersymmetric lepton partners (sleptons). For lifetimes of 0.1 ns, selectron, smuon, and stau masses up to 720, 680, and 340GeV, respectively, are excluded at 95% confidence level, drastically improving on the previous best limits from LEP.

中文翻译:

使用 ATLAS 探测器搜索位移的轻子 ins=13TeVppCollisions

使用大冲击参数搜索带电轻子 139脸书-1=13伏特 展示了来自 LHC 的 ATLAS 探测器的碰撞数据,解决了在可能的新物理特征覆盖范围内长期存在的差距。结果与背景预测一致。这种搜索为长寿命的标量超对称轻子伙伴(slepton)提供了独特的敏感性。对于 0.1 ns 的寿命,selectron、smuon 和 stau 质量高达 720、680 和340电子伏特分别在 95% 的置信水平下被排除在外,大大改善了 LEP 之前的最佳限制。
更新日期:2021-07-27
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