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arXiv 0811.1646hep-ph
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PAMELA/FERMI和对撞机上$U(1)_{L_μ- L_τ}$带电暗物质的唯象

Phenomenology of $U(1)_{L_μ- L_τ}$ charged dark matter at PAMELA/FERMI and colliders

Seungwon Baek, Pyungwon Ko

摘要:

最近关于$e^+/e^-$和$\bar{p}$宇宙线的数据表明,暗物质通过新的亲轻子相互作用湮灭为标准模型(SM)粒子。在本文中,我们考虑了一个标准模型的扩展与规范$U(1)_{L_μ- L_τ}$群,一个新的狄拉克费米子在这个U(1)作为一个暗物质充电。我们研究了μ子$(g-2)_μ$,冷暗物质的热遗迹密度,以及该模型的对撞机签名。在Tevatron或LHC上产生的$Z^{'}$可以很容易地达到$O(1)-O(10^3)$ fb的量级。

英文摘要:

Recent data on $e^+/e^-$ and $\bar{p}$ cosmic rays suggest that dark matter annihilate into the standard model (SM) particles through new leptophilic interaction. In this paper, we consider a standard model extension with the gauged $U(1)_{L_μ- L_τ}$ group, with a new Dirac fermion charged under this U(1) as a dark matter. We study the muon $(g-2)_μ$, thermal relic density of the cold dark matter, and the collider signatures of this model. $Z^{'}$ productions at the Tevatron or the LHC could be easily order of $O(1)-O(10^3)$ fb.

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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