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arXiv 2203.01692hep-phastro-ph.HE
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暗物质湮灭的谱线端点匹配和连续谱$γ$

Matching resummed endpoint and continuum $γ$-ray spectra from dark-matter annihilation

Martin Beneke, Kai Urban, Martin Vollmann

摘要:

对于最小的wino和Higgsino基准模型,我们提供了精确的能量谱的高能光子TeV规模的暗物质湮灭$χχ\to γ+X$通过合并电弱Sudakov重结晶附近的最大能量与电弱部分子簇射PPPC 4DM,并占索末菲效应。电弱再激励显著地改变了宽范围$E_γ\sim (0.6\ldots 1)\, m_χ$中的光子能谱的形状,因此改变了所谓的“线信号”的形式。

英文摘要:

For the minimal wino and Higgsino benchmark models we provide accurate energy spectra of high-energy photons from TeV scale dark-matter annihilation $χχ\to γ+X$ by merging electroweak Sudakov resummation near maximal energy with the electroweak parton-shower PPPC4DM, and accounting for the Sommerfeld effect. Electroweak resummation significantly changes the shape of the photon-energy spectrum in the wide range $E_γ\sim (0.6\ldots 1)\, m_χ$ and hence the form of the so-called "line-signal".

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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