TY - RPRT TI - Challenges for a QCD axion at the 10 MeV scale AU - Liu, Jia AU - McGinnis, Navin AU - Wagner, Carlos M. AU - Wang, Xiao-Ping PY - 2021 DO - 10.1007/jhep05(2021)138 UR - https://www.osti.gov/biblio/1819442 ID - 1819442 ER -