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arXiv 1306.4681hep-phastro-ph.HE
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惰性偶态模型中新的Gamma-ray谱特征

Novel Gamma-ray Spectral Features in the Inert Doublet Model

Camilo Garcia-Cely, Alejandro Ibarra

摘要:

惰性双重态模型包含一个中性的稳定粒子,它是一个很好的暗物质候选者。本文讨论了当暗物质质量大于$W$玻色子质量时,该模型在伽马射线中的间接特征。我们发现,除了在湮灭成两个弱规范玻色子的无特征的伽马射线光谱,该模型一般预测一个独特的光谱特征,从内部韧致辐射过程$H^0 H^0 \rightarrow W^+ W^- γ$。我们讨论了在何种条件下产生的光谱特征,我们构建了一些基准点,兼容所观察到的遗物密度和所有其他直接和间接的检测实验,这导致了尖锐的伽马射线功能从内部韧致辐射。

英文摘要:

The inert doublet model contains a neutral stable particle which is an excellent dark matter candidate. We discuss in this paper the indirect signatures of this model in gamma-rays when the dark matter mass is larger than the $W$ boson mass. We show that, in addition to the featureless gamma-ray spectrum produced in the annihilations into two weak gauge bosons, the model generically predicts a distinctive spectral feature from the internal bremsstrahlung process $H^0 H^0 \rightarrow W^+ W^- γ$. We discuss under which conditions the spectral feature is generated and we construct a number of benchmark points, compatible with the observed relic density and all other direct and indirect detection experiments, which lead to a sharp gamma-ray feature from internal bremsstrahlung.

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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