The Muon comes from the SPP. In the Holmlid paper, the muons increased when the lights in the lab were turned on. In order to minimize muon production, the Rydberg matter had to be covered to exclude light.
"The sources give a slowly decaying muon signal for several hours and days after being used for producing H(0). They can be triggered to increase the muon production by laser irradiation inside the chambers or sometimes even by turning on the fluorescent lamps in the laboratory for a short time." Light is being converted to a form of energy that can produce muons. I say that that form of energy conversion is light to magnetic energy powerful enough to produce muons. In the Rossi reactor, the form of light is infrared. Deal with it.