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arXiv 0802.0310hep-ph
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331模型中Tevatron和LHC的$Z^{\prime}$玻色子信号

$Z^{\prime}$ boson signal at Tevatron and LHC in a 331 model

N. Gutierrez, R. Martinez, F. Ochoa

摘要:

本文在右手中微子331模型的框架下,分析了在Tevatron和LHC的双电子事件中探测到新的$Z^{\prime}$玻色子的可能性。利用费米实验室Tevatron的CDF II探测器收集的$p\bar{p}$碰撞数据,我们发现331 $Z^{\prime}$玻色子被排除在外,质量低于920 GeV。对于在LHC上的$100 fb^{-1}$的积分亮度,考虑中心值$M_{Z^{\prime}}=1500$ GeV,我们得到了过程$pp\to Z^{\prime}\to e^{+}e^{-}$中不变的质量分布,其中一个巨大的峰值,对应于800个信号事件,被发现以上的SM背景。在$M_{Z^{\prime}}=1000-5000$ GeV的质量范围内,双电子事件的数量从10000到1不等。

英文摘要:

We analyse the possibilities to detect a new $Z^{\prime}$ boson in di-electron events at Tevatron and LHC in the framework of the 331 model with right-handed neutrinos. Using $p\bar{p}$ collision data collected by the CDF II detector at Fermilab Tevatron, we find that the 331 $Z^{\prime}$ boson is excluded with masses below 920 GeV. For an integrated luminosity of $100 fb^{-1}$ at LHC, and considering a central value $M_{Z^{\prime}}=1500$ GeV, we obtain the invariant mass distribution in the process $pp\to Z^{\prime}\to e^{+}e^{-}$, where a huge peak, corresponding to 800 signal events, is found above the SM background. The number of di-electron events vary from 10000 to 1 in the mass range of $M_{Z^{\prime}}=1000-5000$ GeV.

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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