论文标题
鉴于最近的AMS-02数据，银河光环大小
Galactic halo size in the light of recent AMS-02 data
论文作者
论文摘要
银河系的垂直扩散光环大小，$ L $，是暗物质间接搜索的关键参数。借助最近的AMS-02数据，可以更好地确定它。我们从BE/B和$^{10} $ be/be Data设置了约束，我们对正电子数据进行了一致性检查。我们详细介绍BE/B和$^{10} $ Be/be在$ l $上的依赖性，并预测在哪些能源范围更好的数据将有助于将来的$ L $改进。我们使用了usine v3.5进行核的传播，并用boudaud等人的捏合方法计算了$ e^+$。 （2017）。当前的AMS-02 Be/b（$ \ sim3 \％$ precision）和ace-cris $^{10} $ be/be/be（$ \ sim 10 \％$ precision）数据对$ l $带来了类似且一致的约束。 AMS-02 BE/B数据仅约束$ L = 5^{+3} _ { - 2} $ 〜KPC在68 \％的置信度（跨越不同的基准传输配置），大多数模型都不会过度生产正面。未来的实验需要在$^{10} $ BE/$^9 $上提供百分比准确性，以便进一步限制$ L $。即将到来的AMS-02，Helix和Pamela $^{10} $ be/$^9 $ be结果将进一步测试并可能收紧此处得出的限制。还等待涉及具有不同寿命（例如Al/mg和cl/ar）的放射性物种的元素比率，以提供互补和强度的约束。
The vertical diffusive halo size of the Galaxy, $L$, is a key parameter for dark matter indirect searches. It can be better determined thanks to recent AMS-02 data. We set constraints on $L$ from Be/B and $^{10}$Be/Be data, and we performed a consistency check with positron data. We detail the dependence of Be/B and $^{10}$Be/Be on $L$ and forecast on which energy range better data would be helpful for future $L$ improvements. We used USINE v3.5 for the propagation of nuclei, and $e^+$ were calculated with the pinching method of Boudaud et al. (2017). The current AMS-02 Be/B ($\sim3\%$ precision) and ACE-CRIS $^{10}$Be/Be ($\sim 10\%$ precision) data bring similar and consistent constraints on $L$. The AMS-02 Be/B data alone constrain $L=5^{+3}_{-2}$~kpc at a 68\% confidence level (spanning different benchmark transport configurations), a range for which most models do not overproduce positrons. Future experiments need to deliver percent-level accuracy on $^{10}$Be/$^9$Be anywhere below 10 GV to further constrain $L$. Forthcoming AMS-02, HELIX, and PAMELA $^{10}$Be/$^9$Be results will further test and possibly tighten the limits derived here. Elemental ratios involving radioactive species with different lifetimes (e.g. Al/Mg and Cl/Ar) are also awaited to provide complementary and robuster constraints.
