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arXiv 2009.00747astro-ph.HE
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银河系宇宙射线中间接暗物质信号的SM反氘核背景

SM antideuteron background to indirect dark matter signals in galactic cosmic rays

Diego Mauricio Gomez Coral, Arturo Menchaca-Rocha

摘要:

反氘核生产截面估计使用EPOS-LHC与聚结加力燃烧室,调整到复制已发表的实验数据在很大的能量范围内,这里被用来作为输入到银河系传播代码GALPROP,验证与现有的质子,氦通量以及硼碳比数据比较。由此产生的近地反氘通量,包括太阳调制,与以前的估计。一个总的因素的两个增量的反氘通量的预测,其起源也进行了讨论。然而,这个反氘背景的标准模型源仍然远低于AMS-02,预期的GAPS,灵敏度,以及几个暗物质模型预测的通量。

英文摘要:

Antideuteron production cross-sections estimated using EPOS-LHC with a coalescence afterburner, tuned to reproduce published experimental data over a wide range of energy were used here as input to the galactic propagator code GALPROP, validated with comparing to existing proton, helium fluxes as well as boron-to-carbon ratio data. The resulting near-Earth antideuteron flux, including solar modulation, is compared to previous estimates. An overall factor of two increments in the antideuteron flux is predicted, the origin of which is also discussed. However, this standard model source of antideuteron background still lies well below the AMS-02, and the expected GAPS, sensitivities, as well as the fluxes predicted by several dark matter models.

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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