论文标题
在$ \ sqrt {s} = 13 $ tev with Atlas detter
Search for the charged-lepton-flavor-violating decay $Z\rightarrow eμ$ in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
论文作者
论文摘要
提出了搜索带电的lepton-Favor-lavor-violation过程$ z \ rightarroweμ$，使用$ \ sqrt {s} = 13 $ \ sqrt {s} = 13 $ tev $ pp $ collision数据收集的Atlas Experiment在LHC上收集的139 fb $^{ - 1} $。 $eμ$不变的质谱中的$ z $玻色子质量的过剩将是新物理学的引人注目的签名。未观察到多余的$ b（z \ rightarroweμ）<2.62 \ times 10^{ - 7} $以95％的置信度放置在分支分数上，这是迄今为止最严格的限制。
A search for the charged-lepton-flavor-violating process $Z\rightarrow eμ$ is presented, using 139 fb$^{-1}$ of $\sqrt{s}=13$ TeV $pp$ collision data collected by the ATLAS experiment at the LHC. An excess in the $eμ$ invariant mass spectrum near the $Z$ boson mass would be a striking signature of new physics. No excess is observed, and an upper limit $B(Z\rightarrow eμ) < 2.62 \times 10^{-7}$ is placed on the branching fraction at 95% confidence level, which is the most stringent limit to date.
