The possible Role of Axions in LENR
The axion is a hypothetical elementary particle postulated by the Peccei–Quinn theory in 1977 to resolve the strong CP problem in quantum chromodynamics (QCD). If axions exist and have low mass within a specific range, they are of interest as a possible component of cold dark matter.
In particle physics, the Peccei–Quinn theory is a well-known proposal for the resolution of this strong CP problem. It was formulated by Roberto Peccei and Helen Quinn. The theory proposes that the QCD Lagrangian be extended with a CP-violating term known as the θ term. Because experiments have never measured a value for θ, its value must be small if it exists.
The strong force is balanced on a knife’s edge where CP-violation does not occur. Only mesons show CP-violations in their decay. The particle that was invented to keep the strong force particles in balance is the axion. The strong force sits on a teeter totter that is held in balance by the axion as a dynamic process.
The Maxwell equations have been modified to include the axion, so axions are an EMF kind of thing.
Since Holmlid is seeing massive CP violations in the production of mesons, CP violation could be the cause of LENR.
Axions convert back and forth between photons in the presence of a strong magnetic field. This is just what the doctor ordered for LENR: A method relating to EMF using strong magnetism to disrupt the balance of strong force particles that may result in the production of mesons.
I am disregarding the grand unification theory of LENR to work on this axion connection because it has a strength range that does not depend on the power of the emf field to generate LENR activity.
Here is some background that shows how strong magnetic field production is central to the detection of the axion particle though the magnetic conversion of axions to photons.
Axions and the Storage Ring Proton EDM experiments
Yannis Semertzidis, CAPP/IBS and KAIST