论文标题
用魔术望远镜观察到矮球星系的观察，从而限制了麸皮暗物质
Constraining branon dark matter from observations of the dwarf spheroidal galaxies with the MAGIC telescopes
论文作者
论文摘要
我们在非常高能的伽马射线频带中介绍了第一个Branon暗物质（DM）搜索，并观察到由主要的大气伽马成像Cherenkov（魔术）望远镜系统进行的矮球星系〜1。李子是出现在柔性的bran-world模型中的新自由度。它们的行为是弱相互作用的巨大颗粒，这是天然DM候选者。在〜1个数据中没有伽马射线信号的情况下，我们通过使用BINNEDIBLIONES分析对Branon DM参数空间进行约束。我们对热平均歼灭横截面的最大限制（$ 95 \％$置信度）对应于$ \ langleσv\ rangle \ rangle \ simeq 1.4 \ times 10^{ - 23}〜\ text {cm}^} 0.7〜 \ text {tev} $。
We present the first branon dark matter (DM) search in the very high-energy gamma-ray band with observations of the dwarf spheroidal galaxy Segue~1 carried out by the Major Atmospheric Gamma Imaging Cherenkov (MAGIC) telescope system. Branons are new degrees of freedom that appear in flexible brane-world models corresponding to brane fluctuations. They behave as weakly interacting massive particles, which are natural DM candidates. In the absence of a gamma-ray signal in the Segue~1 data, we place constraints on the branon DM parameter space by using a binned likelihood analysis. Our most constraining limit to the thermally-averaged annihilation cross-section (at $95\%$ confidence level) corresponds to $ \langle σv \rangle \simeq 1.4 \times 10^{-23}~\text{cm}^{3}\text{s}^{-1} $ at a branon DM mass of $ \sim 0.7~\text{TeV}$.
