New Directions for ALP Searches Combining Nuclear Reactors and Haloscopes
arxiv(2023)
摘要
In this work we propose reactoscope, a novel experimental setup for
axion-like particle (ALP) searches. Nuclear reactors produce a copious number
of photons, a fraction of which could convert into ALPs via Primakoff process
in the reactor core. The generated flux of ALPs leaves the nuclear power plant
and its passage through a region with a strong magnetic field results in the
efficient conversion to photons which can be detected. Such magnetic field is
the key component of axion haloscope experiments. Adjacent nuclear reactor and
axion haloscope experiment exist in Grenoble, France. There, the Institut
Laue-Langevin (ILL) research reactor is situated only ∼ 700 m from GrAHal,
the axion haloscope platform designed to offer several volume and magnetic
field (up to 43 T) configurations. We derive sensitivity projections for
photophilic ALP searches with ILL and GrAHal, and also scrutinize analogous
realizations, such as the one comprising of CAST experiment at CERN and Bugey
nuclear power plant. The results that we obtain complement and extend the reach
of existing laboratory experiments, e.g. light-shining-through-walls. While the
derived sensitivities are not competitive when compared to the astrophysical
limits, our analysis is free from the assumptions associated to those.
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