Impact of squark flavor violation on neutralino dark matter
Impact of squark flavor violation on neutralino dark matter
复制标题
夸克味破坏对中子暗物质的影响
DOI：
10.1103/physrevd.84.095007
复制
发表时间：
2011
影响因子：
5
通讯作者：
Q. L. Boulc'h
中科院分区：
文献类型：
--
作者：
B. Herrmann;M. Klasen;Q. L. Boulc'h
我们讨论了在超对称模型的夸克扇区的背景下的暗物质遗迹密度的味道违反的新来源的可能性。我们发现，相应的非最小味违反项的夸克质量矩阵可以有一个重要的影响，热平均（共）湮灭截面的中性伴子，并在后果可以修改其预测的遗物密度。我们详细讨论了相关的影响，并提出了在这种情况下的中性伴子湮灭和共湮灭的数值研究。我们还评论了相应的方案的LHC现象。
We discuss the possibility of new sources of flavor violation in the squark sector of supersymmetric models in the context of the dark matter relic density. We show that the corresponding nonminimal flavor violation terms in the squark mass matrices can have an important impact on the thermally averaged (co)annihilation cross section of the neutralino, and in consequence can modify its predicted relic density. We discuss in detail the relevant effects and present a numerical study of neutralino annihilation and coannihilation in this context. We also comment on the LHC phenomenology of the corresponding scenarios.