Piezonuclear reactions - do they exist?

Details Piezonuclear reactions - do they exist? Piezonuclear reactions - do they exist?

2009-10-19

arxiv.org/abs/0910.3501v1

Physics

Nuclear Physics

Nuclear Experiment

10 pages; submitted to Phys. Lett. A. This is a full article version of what we previously submitted to Phys. Lett. A as a sec

Scientific paper

In a number of recent articles in this journal F. Cardone and collaborators have claimed the observation of several striking nuclear phenomena which they attribute to "piezonuclear reactions". One such claim [Phys. Lett. A 373 (2009) 1956] is that subjecting a solution of 228Th to cavitation leads to a "transformation" of thorium nuclei that is 104 times faster than the normal nuclear decay for this isotope. In a "Comment" [Phys. Lett. A 373 (2009) 3795] to the thorium work, we have criticized the evidence provided for this claim. In a "Reply" [Phys. Lett. A 373 (2009) 3797] Cardone et al. answer only some minor points but avoid addressing the real issue. The information provided in their Reply displays a worrying lack of control of their experimental situation and the data they put forward as evidence for their claims. We point out several shortcomings and errors in the described experimental preparations, set-up and reporting, as well as in the data analysis. We conclude that the evidence presented by Cardone et al. is insufficient to justify their claims of accelerated thorium decay (by "piezonuclear reactions" or otherwise). We also briefly discuss the role of the physics community (peer review) in the evaluation of new discoveries and claims.

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