TY - RPRT TI - Axion Mass from Magnetic Monopole Loops AU - Fan, JiJi AU - Fraser, Katherine (ORCID:0000000337238517) AU - Reece, Matthew AU - Stout, John (ORCID:0000000163151066) PY - 2021 DO - 10.1103/physrevlett.127.131602 UR - https://www.osti.gov/biblio/1822522 ID - 1822522 ER -