Strong supernovae bounds on ALPs from quantum loops

Abstract We show that in theories of axionlike particles (ALPs) coupled to electrons at tree-level, the one-loop effective coupling photons is process dependent: relevant for decay processes, g aγ (D) , differs significantly from appearing phenomenologically important Primakoff process, (P) . this has implications physics massive ALPs hot and dense environments, such as supernovae. derive, a consequence, new limits on ALP-electron coupling, ĝ ae SN 1987A by accounting all production including considering bounds excess cooling well absence an associated gamma-ray burst ALP decays. Our are among strongest date masses range 0.03 MeV < m 240 MeV. Moreover, we also how cosmological ALP-photon translate into new, strong one loop. analysis emphasises large hierarchies between couplings difficult realise once quantum loops taken account.