Hawking radiation would contain any- and everything consistent with the no-hair theorem [1]. Particle decays are much more constrained; deviations from the deca

Hawking radiation would contain any- and everything consistent with the no-hair theorem [1]. Particle decays are much more constrained; deviations from the decay signatures of known ones is how you (hope to) find new physics. Or black holes [2]. [1] https://en.wikipedia.org/wiki/No-hair_theorem https://en.wikipedia.org/wiki/No-hair_theorem [2] https://arxiv.org/abs/1012.3375 https://arxiv.org/abs/1012.3375