论文标题
高能的太阳能磁盘
The solar disk at high energies
论文作者
论文摘要
高能量宇宙射线“照亮”太阳，并产生一个可以在多达五个不同的通道中观察到的图像：宇宙射线阴影（HAWC已经研究了能量依赖性）；伽马射线（Fermi-lat）的伽马射线（$ e \ le 200 $ gev）；若恩阴影（由Antares和Icecube检测）；中子通量（未检测到，因为太空中没有辐射量热计）；和高能量中微子的通量。由于这些信号是相关的，因此已经观察到的信号可用于减少未被发现的信号。在这里，我们定义了一个简单的设置，该设置使用Fermi-LAT和HAWC观测值暗示来自太阳能磁盘的中子和中微子的非常确定的通量。特别是，我们在10 GEV-10 TEV上提供了中微子通量的拟合，其中包括其对天顶角和太阳周期周期的依赖。这种通量代表了间接暗物质搜索中的中微子地板。我们表明，在某些基准模型中，暗物质 - 核子横截面上的电流边界推动了该中微子地板下方的太阳信号。
High energy cosmic rays "illuminate" the Sun and produce an image that could be observed in up to five different channels: a cosmic ray shadow (whose energy dependence has been studied by HAWC); a gamma ray flux (observed at $E\le 200$ GeV by Fermi-LAT); a muon shadow (detected by ANTARES and IceCube); a neutron flux (undetected, as there are no hadronic calorimeters in space); and a flux of high energy neutrinos. Since these signals are correlated, the ones already observed can be used to reduce the uncertainty in the still undetected ones. Here we define a simple set up that uses the Fermi-LAT and HAWC observations to imply very definite fluxes of neutrons and neutrinos from the solar disk. In particular, we provide a fit of the neutrino flux at 10 GeV-10 TeV that includes its dependence on the zenith angle and on the period of the solar cycle. This flux represents a neutrino floor in indirect dark matter searches. We show that in some benchmark models the current bounds on the dark matter-nucleon cross section push the solar signal below this neutrino floor.
