标题： 用费米空间望远镜LAT测试无尺度超引力 显示英文标题

标题： Testing No-Scale Supergravity with the Fermi Space Telescope LAT

摘要： 我们描述了一种通过费米空间望远镜上的LAT仪器观测最轻超对称（SUSY）中性微子湮灭产生的伽马射线辐射来测试无尺度超引力的方法。 对于我们的测试平台，我们采用超对称大统一模型无尺度翻转$SU(5)$的框架，其中包含从F理论导出的额外矢量型翻普顿多重态，称为$\cal{F}$-$SU(5)$。 我们表明，通过压缩轻态tau子和轻玻色子中性微子质量差，在此情况下内部轫致辐射（IB）光子起主导作用，SUSY暗物质湮灭的光子产率可以提高到在不久的将来可能被费米-LAT观测到的事件数。 同样，无尺度$\cal{F}$-$SU(5)$中的产率增加也可能使现有观测到的133 GeV单色伽马射线线变得可见，如果额外数据能够排除系统或统计解释的话。 除了强度问题之外，No-Scale $\cal{F}$-$SU(5)$ 确实可以提供一个自然的弱相互作用大质量粒子（WIMP）候选者，其质量处于正确的范围，以在 $\gamma \gamma$ 和 $\gamma Z$ 能量线分别在 $m_{\chi} \sim 133$ GeV 和 $m_{\chi} \sim 145$ GeV 处产生发射线。 此外，我们阐明了最近普朗克卫星数据与模拟 Starobinsky 模型的 No-Scale 超对称宇宙学模型之间出现的经验联系。 这些实验共同提供了丰富的替代途径来测试无尺度的$\cal{F}$-$SU(5)$及类似结构的模型，其结果可能为在大型强子对撞机上做出的观测提供独立的支持。 显示英文摘要

摘要： We describe a methodology for testing No-Scale Supergravity by the LAT instrument onboard the Fermi Space Telescope via observation of gamma ray emissions from lightest supersymmetric (SUSY) neutralino annihilations. For our test vehicle we engage the framework of the supersymmetric grand unified model No-Scale Flipped $SU(5)$ with extra vector-like flippon multiplets derived from F-Theory, known as $\cal{F}$-$SU(5)$. We show that through compression of the light stau and light bino neutralino mass difference, where internal bremsstrahlung (IB) photons give a dominant contribution, the photon yield from annihilation of SUSY dark matter can be elevated to a number of events potentially observable by the Fermi-LAT in the coming years. Likewise, the increased yield in No-Scale $\cal{F}$-$SU(5)$ may also have rendered the existing observation of a 133 GeV monochromatic gamma ray line visible, if additional data should exclude systematic or statistical explanations. The question of intensity aside, No-Scale $\cal{F}$-$SU(5)$ can indeed provide a natural weakly interacting massive particle (WIMP) candidate with a mass in the correct range to yield $\gamma \gamma$ and $\gamma Z$ emission lines at $m_{\chi} \sim 133$ GeV and $m_{\chi} \sim 145$ GeV, respectively. Additionally, we elucidate the emerging empirical connection between recent Planck satellite data and No-Scale Supergravity cosmological models which mimic the Starobinsky model of inflation. Together, these experiments furnish rich alternate avenues for testing No-Scale $\cal{F}$-$SU(5)$, and similarly structured models, the results of which may lend independent credence to observations made at the LHC.