caa a22 4500 445346396 CHVBK 20180317142830.0 cr unu---uuuuu 170323e20110801xx s 000 0 eng 10.1007/s11207-011-9807-5 doi (NATIONALLICENCE)springer-10.1007/s11207-011-9807-5 Further Evidence Suggestive of a Solar Influence on Nuclear Decay Rates [Elektronische Daten] [P. Sturrock, E. Fischbach, J. Jenkins] Recent analyses of nuclear decay data show evidence of variations suggestive of a solar influence. Analyses of datasets acquired at the Brookhaven National Laboratory (BNL) and at the Physikalisch-Technische Bundesanstalt (PTB) both show evidence of an annual periodicity and of periodicities with sidereal frequencies in the neighborhood of 12.25year−1 (at a significance level that we have estimated to be 10−17). It is notable that this implied rotation rate is lower than that attributed to the solar radiative zone, suggestive of a slowly rotating solar core. This leads us to hypothesize that there may be an "inner tachocline” separating the core from the radiative zone, analogous to the "outer tachocline” that separates the radiative zone from the convection zone. The Rieger periodicity (which has a period of about 154 days, corresponding to a frequency of 2.37 year−1) may be attributed to an r-mode oscillation with spherical-harmonic indices l=3,m=1, located in the outer tachocline. This suggests that we may test the hypothesis of a solar influence on nuclear decay rates by searching BNL and PTB data for evidence of a "Rieger-like” r-mode oscillation, with l=3,m=1, in the inner tachocline. The appropriate search band for such an oscillation is estimated to be 2.00 - 2.28 year−1. We find, in both datasets, strong evidence of a periodicity at 2.11 year−1. We estimate that the probability of obtaining these results by chance is 10−12. Springer Science+Business Media B.V., 2011 Nuclear physics nationallicence Solar structure nationallicence Sturrock P. Center for Space Science and Astrophysics, Stanford University, 94305-4060, Stanford, CA, USA aut Fischbach E. Department of Physics, Purdue University, 47907, West Lafayette, IN, USA aut Jenkins J. Department of Physics and School of Nuclear Engineering, Purdue University, 47907, West Lafayette, IN, USA aut Solar Physics Springer Netherlands 272/1(2011-08-01), 1-10 0038-0938 272:1<1 2011 272 11207 https://doi.org/10.1007/s11207-011-9807-5 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11207-011-9807-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Sturrock P. Center for Space Science and Astrophysics, Stanford University, 94305-4060, Stanford, CA, USA aut NATIONALLICENCE 700 1- Fischbach E. Department of Physics, Purdue University, 47907, West Lafayette, IN, USA aut NATIONALLICENCE 700 1- Jenkins J. Department of Physics and School of Nuclear Engineering, Purdue University, 47907, West Lafayette, IN, USA aut NATIONALLICENCE 773 0- Solar Physics Springer Netherlands 272/1(2011-08-01), 1-10 0038-0938 272:1<1 2011 272 11207 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer