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arXiv 0902.0006hep-phhep-ex
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在LHC测量暗力

Measuring the Dark Force at the LHC

Yang Bai, Zhenyu Han

摘要:

最近有人提出一种长程"暗力“来调解暗物质(DM)的湮灭。如果DM粒子在大型强子对撞机(LHC)中大量产生,那么亮暗力介质也将通过辐射产生。我们展示了如何以及如何精确地利用这一事实来测量暗力的耦合常数。光介质的质量是从它衰变到的“轻子喷流”测量的。此外,使用MT2技术测定DM颗粒的质量。了解这些量对于计算DM遗迹密度至关重要。

英文摘要:

A long-range ``dark force'' has recently been proposed to mediate the dark matter (DM) annihilation. If DM particles are copiously produced at the Large Hadron Collider (LHC), the light dark force mediator will also be produced through radiation. We demonstrate how and how precise we can utilize this fact to measure the coupling constant of the dark force. The light mediator's mass is measured from the ``lepton jet'' it decays to. In addition, the mass of the DM particle is determined using the MT2 technique. Knowing these quantities is critical for calculating the DM relic density.

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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