论文标题
重新探讨了对电动eakino暗物质的LHC约束
LHC constraints on electroweakino dark matter revisited
论文作者
论文摘要
我们通过利用QCD初始状态辐射来重新访问LHC搜索重可见的颗粒。我们在Atlas的一般多射线和MET搜索中重铸了一个二甲信号区域。我们发现，可以在辐射通道中使用当前数据的各种型模型获得非平凡的质量限制。 Winos必然会比$ m _ {\ tilde w} \ gtrsim {160} $ GEV和higgsinos $ m _ {\ tilde h} \ tilde h} \ gtrsim {100} $ gev，取决于Chargino-Nemalino-Nemalino spling。 LHC的预期排除限制以$ \ MATHCAL {l} = 300 $ fb $^{ - 1} $增加到$ m _ {\ tilde w} \ gtrsim {200} $ gtrsim {200} $ gev和$ m _ {\ tilde h} \ gtrsim {\ tilde h} \ gtrsim {\ gtrsim {130} $ g ev。这是迅速衰减几乎大规模降级的Winos的第一个LHC限制。
We revisit LHC searches for heavy invisible particles by exploiting QCD initial state radiation. We recast a dijet signal region in a general multijet plus MET search by ATLAS. We find that non-trivial mass limit can be obtained for various models of the electroweakino sector with the present data in hadronic channels. The winos are bound to be heavier than $m_{\tilde W} \gtrsim {160}$ GeV and higgsinos $m_{\tilde h} \gtrsim {100}$ GeV, depending on the chargino-neutralino mass splitting. The expected exclusion limits at the LHC Run 3 with $\mathcal{L} = 300$ fb$^{-1}$ increase to $m_{\tilde W} \gtrsim {200}$ GeV and $m_{\tilde h} \gtrsim {130}$ GeV for winos and higgsino, respectively. This is the first LHC limit for promptly decaying nearly mass-degenerate winos.
