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arXiv 1805.01649hep-ex
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用ATLAS探测器在13个TeV $pp$碰撞中寻找具有粲喷流和丢失横动量的末态超对称性

Search for supersymmetry in final states with charm jets and missing transverse momentum in 13 TeV $pp$ collisions with the ATLAS detector

ATLAS Collaboration

摘要:

本文提出了寻找衰变为$\tilde{t}_1\to c\tildeχ^0_1$的顶夸克超对称伴子和衰变为$\tilde{c}_1\to c\tildeχ^0_1$的粲夸克超对称伴子的方法,其中$\tildeχ^0_1$是最轻的中性伴子.搜索使用36.1 ${\rm fb}^{-1}$ $pp$碰撞数据在一个中心的质量能量为13 TeV收集的ATLAS实验在大型强子对撞机,并在最后的状态与确定为包含粲强子喷流。假设$c\tildeχ^0_1$的分支比为100%,则在95%的置信水平下,质量不超过850 GeV的顶夸克和粲夸克被排除在无质量的最轻中性伴子之外。对于$m_{\tilde{t}_1,\tilde{c}_1}-m_{\tildeχ^0_1} <$ 100 GeV,不包括高达500 GeV的顶夸克和粲夸克质量。

英文摘要:

A search for supersymmetric partners of top quarks decaying as $\tilde{t}_1\to c\tildeχ^0_1$ and supersymmetric partners of charm quarks decaying as $\tilde{c}_1\to c\tildeχ^0_1$, where $\tildeχ^0_1$ is the lightest neutralino, is presented. The search uses 36.1 ${\rm fb}^{-1}$ $pp$ collision data at a centre-of-mass energy of 13 TeV collected by the ATLAS experiment at the Large Hadron Collider and is performed in final states with jets identified as containing charm hadrons. Assuming a 100% branching ratio to $c\tildeχ^0_1$, top and charm squarks with masses up to 850 GeV are excluded at 95% confidence level for a massless lightest neutralino. For $m_{\tilde{t}_1,\tilde{c}_1}-m_{\tildeχ^0_1} <$100 GeV, top and charm squark masses up to 500 GeV are excluded.

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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