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The Widom-Larsen theory is a theory developed in 2005 by Dr. Allan Widom and Lewis Larsen which describes the production of ultra low momentum neutrons and subsequent catalysis of Low Energy Nuclear Reactions (LENR). Neutrons are hypothesized to be produced during weak interactions when protons capture "heavy" electrons in certain special conditions, such as metallic hydride surfaces. The theory has been criticized as being "based on a number of fallacies and an obscuring way of handling the equations."
The theory was expanded by Dr. Yogendra Srivastava in 2014, and additionally theorized as a possible explanation for neutrons observed in exploding wire experiments, solar corona and flares, as well as to explain neutron production in thunderstorms. However, unreal concentrations of free electrons would be needed for the theory's prediction of neutron yield to be a significant component of thunderstorm neutrons, discounting the theory as an explanation. The theory has also been suggested as describing the source of neutrons produced in the fracture of piezoelectric and iron containing rocks.
- Anderson, Mark (23 October 2012). "Big Idea: Bring Back the "Cold Fusion" Dream. A new theory may explain the notorious cold fusion experiment from two decades ago, reigniting hopes of a clean-energy breakthrough.". Discover Magazine.
- Widom, A; Larsen, L (April 2006). "Ultra Low Momentum Neutron Catalyzed Nuclear Reactions on Metallic Hydride Surfaces" (PDF). The European Physical Journal C. doi:10.1140/epjc/s2006-02479-8. Archived from the original on 2 May 2005. Retrieved 24 March 2017.
- Tennfors, Einor (15 February 2015). "On the idea of low energy nuclear reactions in metallic lattices by producing neutrons from protons capturing "heavy" electrons". European Journal of Physics. doi:10.1140/epjp/i2013-13015-3. Retrieved 24 March 2017.
- Srivastava, Y; Widom, A; Larsen, L (October 2014). "A primer for electroweak induced low-energy nuclear reactions". Pramana – Journal of Physics. Retrieved 24 March 2017.
- Babich, L P; Bochkov, E I; Kutsyk, I M; Rassoul, H K (13 May 2014). "Analysis of fundamental interactions capable of producing neutrons in thunderstorms" (PDF). Physics Review D. doi:10.1103/PhysRevD.89.093010. Archived from the original on 2014. Retrieved 24 March 2017.
- Babich, L P. "Fundamental processes capable of accounting for the neutron flux enhancements in a thunderstorm atmosphere" (PDF). Journal of Experimental and Theoretical Physics. doi:10.1134/S1063776114030017. Archived from the original on 2014. Retrieved 24 March 2017.
- Babich, L P (8 October 2015). "Analysis of a laboratory experiment on neutron generation by discharges in the open atmosphere" (PDF). Physics Review C. doi:10.1103/PhysRevC.92.044602. Archived from the original on 2015. Retrieved 24 March 2017.
- Widom, A; Swain, J; Srivastava, Y (14 December 2012). "Neutron production from the fracture of piezoelectric rocks". Journal of Physics G. Retrieved 24 March 2017.
- Widom, A; Swain, J; Srivastava, Y (May 2015). "Photo-disintegration of the iron nucleus in fractured magnetite rocks with magnetostriction". Mechanicca. doi:10.1007/s11012-014-0007-x. Retrieved 24 March 2017.