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Well, I don't have the background either, but I'll take a stab at it. The big problem with explaining how the observed excess heat from LENR experiments is that it doesn't follow conventional physicicists' view of things. Note that I don't say conventional physics, just conventional physicists. Those 3 problems are: 1. Ultra-low probability of reaction: 2. Fragmentation and fragmentation ratio: 3. Decay paths from excited states of 4He. Sinha's theory takes care of these. Here's a significant claim: This lochon-catalyzed-fusion mechanism, involving longitudinal optical phonons and local electric fields (internally or externally generated) in a crystal lattice that induce the formation of D− D+ pairs, increases the low-energy-tunneling probability by more than 100 orders of magnitude relative to that predicted from models based on multi-MeV deuteron-beam experiments . 100 order of magnitude is a huge, gigantic reduction. I daresay it is HUGH and SERIES. The author is basically extending his model introduced earlier, and expanding it. A model for enhanced fusion reaction in a solid matrix of metal deuterides Wednesday, June 08, 2011 10:14:09 PM · by Kevmo · 35 replies International Conference on Condensed Matter Nuclear Science. 2008 ^ | July 2008 | K P Sinha http://www.freerepublic.com/focus/f-news/2732072/posts It's basically classic physics, with a focus on paired electrons in the same state (i.e., s-orbit in a D−ion) becoming a local-charged Boson – the “lochon” – and the resulting D− D+ ion pairs being attractive rather than being repelled by the normal d–d Coulomb barrier. Lochons are cool. The electron’s kinetic-energy-increase and their movement deeper into the Coulomb well about the deuteron causes them and their orbit to “shrink” (Appendices B and A). This is something I have begun to notice about several theories on LENR. They basically do the same thing that Mills has been claiming for 20 years, find theoretical ways of squeezing the Hydrogen atom. The author gives direct credit to Mills. That's gutsy. The “slow” motion of the converging deuterons allows hundreds of electron orbital cycles to occur during each step and therefore allows the electrons time to experience and respond to the changing fields. Furthermore, nuclear physics experiments are unlikely to see any of this D−D+ pairing effect unless the target deuterons have a reasonable probability of being in the negative ion state at the moment of collision. On the other hand, under the influence of lattice opticalphonon motion, that moment may be precisely when this state is most likely. A deuteron-beam experiment would have only a low statistical probability of involving a negative deuterium ion. Also, the mathematical interpretation of nuclear physics experiments under its low-energy (e.g. ∼5 keV) collision conditions would only indicate a higher Coulomb screening [17]. This interpretation may be appropriate for a deuteron with bound electrons. However, there are aspects of the LENR experimental results and of this model that any nuclear physics experiment is unlikely to see. ***LENR Experimental results take place in circumstances that standard nuclear physics experiments are unlikely to see.