Searching for Earth/Solar axion halos

Abhishek Banerjee, Dmitry Budker, Joshua Eby, Victor V. Flambaum, Hyungjin Kim, Oleksii Matsedonskyi, Gilad Perez

Research output: Contribution to journalArticlepeer-review


We discuss the sensitivity of the present and near-future axion dark matter experiments to a halo of axions or axion-like particles gravitationally bound to the Earth or the Sun. Such halos, assuming they are formed, can be searched for in a wide variety of experiments even when the axion couplings to matter are small, while satisfying all the present experimental bounds on the local properties of dark matter. The structure and coherence properties of these halos also imply novel signals, which can depend on the latitude or orientation of the detector. We demonstrate this by analyzing the sensitivity of several distinct types of axion dark matter experiments.

Original languageEnglish
Article number4
Number of pages26
JournalJournal of High Energy Physics
Issue number9
StatePublished - 1 Sep 2020

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics


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