论文标题
中微子与超轻轴敏的暗物质的相互作用
Neutrino interactions with ultralight axion-like dark matter
论文作者
论文摘要
在这项工作中，我们研究了在乳过去源中产生的高能量中微子的传播，包括与质量$ M_A \ SIM \ SIM 10^{ - 22} {\ rm ev} $与质量$ M_A \ sim 10^{\ rm ev} $相互作用的效果，这些效果是在coupling in coupling in coupling in coupling in coupling in coupling in coupling satud的构成。我们计算横截面，并使用每个质量特征态的传输方程来描述弥漫性中微子通量的传播。这使我们能够在不同的假设下，在地球上观察到不同风味的中微子通量，以在不同的假设下，对于中微子质量的源和正常顺序（NO）或倒下的订购（io）（io）的风味组成。如果对于所有口味（$ g_ {νa} $）的中微子与UALP的耦合相同，我们发现相互作用会改变质量在地球上以$ g_ {νa} \ gtrsim 0.5 \，{\ rm gev}^rmm g ev}^{ - 1} $（ca）的味道（musing） $ \ sim 10^5 \，{\ rm gev} $的中微子能量的情况。尽管有关风味比的当前数据表明，与UALP DM的相互作用不在研究的耦合范围内（尤其是在没有情况下）进行更多数据以提高实验测量的风味组成的精度。
In this work, we study the propagation of high energy neutrinos produced in extragalactic sources including the effect of a possible interaction with ultralight axion-like particles (UALP) with a mass $m_a\sim 10^{-22} {\rm eV}$ as the constituents of dark matter (DM) under the assumption that their coupling to neutrinos is dominant. We compute the cross section and describe the propagation of a diffuse neutrino flux using transport equations for each mass eigenstate. This allows us to obtain the neutrino fluxes of the different flavors to be observed at the Earth with neutrino telescopes under different assumptions for the flavor composition emitted at the sources and for a normal ordering (NO) or an inverted ordering (IO) of the neutrino masses. If the coupling of neutrinos with UALPs is the same for all flavors ($g_{νa}$), we find that interactions change the flavor composition of neutrinos arriving on Earth for $g_{νa}\gtrsim 0.5\,{\rm GeV}^{-1}$, causing the electron(muon) flavor to dominate in the NO(IO) case for neutrino energies above $\sim 10^5\,{\rm GeV}$. Although current data on the flavor ratios suggest that interactions with UALP DM do not take place within the range of coupling studied (particularly in the NO case) more data is needed to improve the precision of the experimentally measured flavor composition.
