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arXiv 0807.4493hep-ex
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在$\sqrt{s}=$ 1.96 TeV的PDMATHAAB碰撞中寻找由$Z \to \ell^+\ell^-$产生的希格斯玻色子

Search for the Higgs boson produced with $Z \to \ell^+\ell^-$ in $p\bar{p}$ collisions at $\sqrt{s}=$ 1.96 TeV

CDF Collaboration, T. Aaltonen

摘要:

我们提出了一个搜索过程中的$q\bar{q} \to ZH \to \ell^+\ell^- b\bar{b}$的希格斯玻色子。该分析使用的积分光度为1 fb $^{-1}$的$p\bar{p}$碰撞产生的$\sqrt{s} =$ 1.96 TeV和积累的升级对撞机探测器在费米实验室(CDF II)。我们采用人工神经网络来校正量热计中的射流,并将信号的运动学分布与背景的运动学分布区分开来。我们没有看到希格斯玻色子玻色子产生的证据,并设定了95%的CL上限($σ_{ZH} \cdot {\cal B}(H \to b\bar{b}$),范围从1.5 pb到1.2 pb的希格斯玻色子玻色子质量($m_H$)为110到150 GeV/ $c^2$。

英文摘要:

We present a search for the Higgs boson in the process $q\bar{q} \to ZH \to \ell^+\ell^- b\bar{b}$. The analysis uses an integrated luminosity of 1 fb$^{-1}$ of $p\bar{p}$ collisions produced at $\sqrt{s} =$ 1.96 TeV and accumulated by the upgraded Collider Detector at Fermilab (CDF II). We employ artificial neural networks both to correct jets mismeasured in the calorimeter, and to distinguish the signal kinematic distributions from those of the background. We see no evidence for Higgs boson production, and set 95% CL upper limits on $σ_{ZH} \cdot {\cal B}(H \to b\bar{b}$), ranging from 1.5 pb to 1.2 pb for a Higgs boson mass ($m_H$) of 110 to 150 GeV/$c^2$.

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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