Ultra-light Dark Matter Limits from Astrophysical Neutrino Flavor
arxiv(2024)
摘要
Ultra-light dark matter is a class of dark matter models where the mass of
the dark matter particle is very small and the dark matter behaves as a
classical field pervading our galaxy. If astrophysical neutrinos interact with
ultra-light dark matter, these interactions would produce a matter potential in
our galaxy which may cause anomalous flavor conversions. Recently, IceCube
high-energy starting event flavor measurements are used to set stringent limits
on isotropic Lorentz violating fields under the Standard-Model Extension
framework. We apply the IceCube Lorentz violation limits to set limits on
neutrino - ultra-light dark matter couplings. We assume the dark matter field
undergoes fast oscillations in our galaxy, yielding neutrino interactions with
dark matter that broaden and smear the observed flavor structure of
astrophysical neutrinos at IceCube. The constraints we obtain are an order of
magnitude tighter than current and future terrestrial neutrino experimental
limits. The sensitivity of ultra-light dark matter can be further improved in
the near future by new particle identification algorithms in IceCube and the
emergence of next-generation neutrino telescopes.
更多查看译文
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要