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arXiv 0801.4108hep-phastro-ph
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Flaxino暗物质和Stau衰变

Flaxino dark matter and stau decay

Eung Jin Chun, Hang Bae Kim, Kazunori Kohri, David H. Lyth

摘要:

如果Peccei-Quinn对称性的自发破缺来自于软超对称性破缺,那么这些破缺场的费米子伙伴的质量为引力子质量的量级,称为平子。最轻的平子,在这里称为flaxino,是CDM候选者,如果它是最轻的超对称粒子。我们在这里探索flaxino暗物质假设最轻的普通超对称粒子是stau,与引力介导的超对称破缺。Stau衰变为flaxino的速度足够快,不会破坏大爆炸核合成的标准预测,并且它的轨道和衰变可以在未来的对撞机中看到。

英文摘要:

If the spontaneous breaking of Peccei-Quinn symmetry comes from soft supersymmetry breaking, the fermionic partners of the symmetry-breaking fields have mass of order the gravitino mass, and are called flatinos. The lightest flatino, called here the flaxino, is a CDM candidate if it is the lightest supersymmetric particle. We here explore flaxino dark matter assuming that the lightest ordinary supersymmetric particle is the stau, with gravity-mediated supersymmetry breaking. The decay of the stau to the flaxino is fast enough not to spoil the standard predictions of Big Bang Nucleosynthesis, and its track and decay can be seen in future colliders.

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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