论文标题
从三个耀斑$ \ textit {fermi} $ flat-peftrum无线电类星体的组合分析中对轴突状粒子的限制
Constraints on axionlike particles from a combined analysis of three flaring $\textit{Fermi}$ flat-spectrum radio quasars
论文作者
论文摘要
粒子物理的标准模型以外的许多理论预测了在存在磁场的情况下与光子混合的轴突状颗粒（ALP）的存在。在搜索ALP-Photon混合在Blazars的伽马射线观测中的影响，到目前为止为ALP参数空间提供了一些最强的约束。以前，仅分析了单个来源。我们对$ \ textIt {fermi} $进行三个明亮，张开的平面灯光无线电类星体的大面积望远镜数据进行了组合分析，而Blazar Jets本身是主要的混合区域。我们首次在喷气机中包括对光子光子分散的完整处理，并通过在拟合中使野外强度无效来解释B场模型中的不确定性。总体而言，我们没有找到有关阿尔卑斯山的证据，但能够排除ALP参数$ M_A \ LISSSIM200 $ NEV和$ G_ {Aγ} \ Gtrsim 5 \ Times 10^{ - 12} $ GEV $^{ - 1} $ 95 \％的信心。
Many theories beyond the Standard Model of particle physics predict the existence of axionlike particles (ALPs) that mix with photons in the presence of a magnetic field. Searching for the effects of ALP-photon mixing in gamma-ray observations of blazars has provided some of the strongest constraints on ALP parameter space so far. Previously, only individual sources have been analysed. We perform a combined analysis on $\textit{Fermi}$ Large Area Telescope data of three bright, flaring flat-spectrum radio quasars, with the blazar jets themselves as the dominant mixing region. For the first time, we include a full treatment of photon-photon dispersion within the jet, and account for the uncertainty in our B-field model by leaving the field strength free in the fitting. Overall, we find no evidence for ALPs, but are able to exclude the ALP parameters $m_a\lesssim200$ neV and $g_{aγ}\gtrsim 5 \times 10^{-12}$ GeV$^{-1}$ with 95\% confidence.
