http://nectar.nd.rl.ac.uk/en/research/port1.html
"Muon catalysed d-t fusion is a genuine cold-fusion process. One negative muon produces 120 d-t fusions during its lifetime. The present rate is 1 million d-t fusions per second (equivalent to 3μW of energy production), and corresponding to 40% of 'scientific breakeven'." So not much hope for CF even at White Dwarf pressures and temperatures...
