Personally, there is nothing that would make me happier. However, it looks like the most likely explanation is a disoriented chiral condensate. The physics 101 jist is that in high energy heavy ion collisions, you produce a section of vacuum that is neutral in terms of chiral preference. When it cools, it condenses to the original chiral state by emitting pions. It is these pions that give the anomalous "had-em" signal.