论文标题
用标量暗物质在一个测量的$ b-l $型号和electroweak对称破坏的相对论冻结中
Relativistic Freeze-in with Scalar Dark Matter in a Gauged $B-L$ Model and Electroweak Symmetry Breaking
论文作者
论文摘要
我们探索了相对论的冻结量表暗物质中的相对论冻结$ b-l $型号，我们专注于从标准模型（SM）和$ b-l $ higgs玻色子的衰减和歼灭中生产暗物质。在我们的分析中，我们考虑了Bose-Einstein（BE）和费米 - 迪拉克（FERMI-DIRAC（FD）统计数据，以及SM Higgs玻色子的热质量校正。我们表明，除了SM Higgs玻色子外，$ B-L $标量的an灭和衰减也可以对暗物质遗物密度产生重大贡献。框架中电动对称性破坏（EWSB）和热质量校正的潜在影响会大大增强暗物质遗物，因为它通过标量歼灭了EWSB温度附近的冻结。但是，当黑物质在以后的时代冻结比EWSB冻结时，这种效果并不是那么突出，这主要是由于标量的衰减。该分析的结果相当通用，适用于其他类似情况。
We explore relativistic freeze-in production of scalar dark matter in gauged $B-L$ model, where we focus on the production of dark matter from the decay and annihilation of Standard Model (SM) and $B-L$ Higgs bosons. We consider the Bose-Einstein (BE) and Fermi-Dirac (FD) statistics, along with the thermal mass correction of the SM Higgs boson in our analysis. We show that in addition to the SM Higgs boson, the annihilation and decay of the $B-L$ scalar can also contribute substantially to the dark matter relic density. Potential effects of electroweak symmetry breaking (EWSB) and thermal mass correction in BE framework enhance the dark matter relic substantially as it freezes-in near EWSB temperature via scalar annihilation. However, such effects are not so prominent when the dark matter freezes-in at a later epoch than EWSB, dominantly by decay of scalars. The results of this analysis are rather generic, and applicable to other similar scenarios.
