Yes it does “explain” it, but cough, cough … the article you quote is about Bib Bang cosmology and premises everything on “magnetic fields of ∼2 GeV which existed in the early Universe during the electroweak phase transition”…
No way does production of mesons happen 15 billion years later in dogbone reactor :-) From: Axil Axil http://arxiv.org/pdf/1203.5699.pdf The p and A mesons in strong abelian magnetic field in SU(2) lattice gauge theory. The paper explains how a P mason can be created from condensation in the vacuum by a magnetic field of the proper strength.
