arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1009.0618hep-phhep-ex
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暗物质的顶窗

The Top Window for dark matter

Kingman Cheung, Kentarou Mawatari, Eibun Senaha, Po-Yan Tseng, Tzu-Chiang Yuan

摘要:

我们研究了顶夸克是暗物质粒子唯一窗口的情况。我们用有效拉格朗日方法来描述顶夸克与暗物质粒子之间的相互作用。在暗物质满足残余密度的条件下,我们得到了有效相互作用的大小。我们表明,该方案可以通过调整有效耦合的大小与直接和间接检测实验一致。最后,我们计算了$t\bar t + χ\bar χ$在大型强子对撞机(LHC)的产生截面,这将产生一个有趣的签名的顶对加上大的丢失能量。

英文摘要:

We investigate a scenario that the top quark is the only window to the dark matter particle. We use the effective Lagrangian approach to write down the interaction between the top quark and the dark matter particle. Requiring the dark matter satisfying the relic density we obtain the size of the effective interaction. We show that the scenario can be made consistent with the direct and indirect detection experiments by adjusting the size of the effective coupling. Finally, we calculate the production cross section for $t\bar t + χ\bar χ$ at the Large Hadron Collider (LHC), which will give rise to an interesting signature of a top-pair plus large missing energy.

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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