论文标题
LHC处的底味的单塔尾巴
Bottom-Flavored Mono-Tau Tails at the LHC
论文作者
论文摘要
我们研究了LHC分析对$τν$最终状态具有相关B-JET的有效现场理论敏感性。为了说明由于B标记而引起的改进，我们首先使用$τν$通道中的CMS分析重新铸造，使用35.9 fb $^{ - 1} $ at $ \ sqrt {s} = 13 $ tev的集成发光度，并在所有有效的运营商上提供限制，从而为流动机提供了限制。然后将B标签分析的预期限制得出并进行比较。我们发现，使用B夸克的运营商的界限中有大约$ \ sim 30 \％$的改进。我们还详细讨论了可能可观察到的角度可观察到，以用作具有不同Lorentz结构的尺寸六算子之间的区别。最后，我们研究了这些限制对某些简化场景的影响，旨在解决半抑制b-膜衰变的Lepton风味普遍性比率中观察到的标准模型的偏差。特别是，我们比较了我们分析设定的对撞机的限制，无论是否有或不带有B标记，假设集成的光度为300 fb $^{ - 1} $，以及相关的低能量测量值。
We study the effective field theory sensitivity of an LHC analysis for the $τν$ final state with an associated b-jet. To illustrate the improvement due to the b-tagging, we first recast the recent CMS analysis in the $τν$ channel, using an integrated luminosity of 35.9 fb$^{-1}$ at $\sqrt{s}=13$ TeV, and provide limits on all the dimension-six effective operators which contribute to the process. The expected limits from the b-tagged analysis are then derived and compared. We find an improvement of approximately $\sim 30\%$ in the bounds for operators with a b quark. We also discuss in detail possible angular observables to be used as a discriminator between dimension-six operators with different Lorentz structure. Finally, we study the impact of these limits on some simplified scenarios aimed at addressing the observed deviations from the Standard Model in lepton flavor universality ratios of semileptonic B-meson decays. In particular, we compare the collider limits on those scenarios set by our analysis either with or without the b-tagging, assuming an integrated luminosity of 300 fb$^{-1}$, with relevant low-energy flavor measurements.
