# How Are Radioactive Decay Rates Influenced by Neutrinos - On Earth and Other Dense Planets

I read a science report recently that mentioned an accidental discovery where radioactive decay rates shifted slightly slower in advance ( about a day and a half) of solar storms or in sync with sun's 33-day pattern/rotation of the sun's core. Seems that neutrinos emitted from within the sun or at surface of the sun arrive in advance of other wave/particle radiations AND effect earthly atomic natures.

Aside from predicting solar flares/storms, does this imply decaying atoms/elements absorb or block neutrino emissions to any substantial degree that might of use in other areas of science?

• Reports similar to this one go back a number of years: news.stanford.edu/news/2010/august/sun-082310.html physicsworld.com/cws/article/news/2008/oct/02/… Two Decades: iaea.org/inis/collection/NCLCollectionStore/_Public/27/040/… – Wayfaring Stranger Jan 29 '15 at 15:22
• This might be better asked on the Physics SE, since this is more a question about neutrinos and the weak force in general. – zibadawa timmy May 20 '15 at 19:57
• Neutrinos aren't affected by solar storms - even a little bit. They're created in Nuclear reactions and then they fly off in their merry way, passing through almost anything they come across. It's a good question to ask if Neutrinos can affect radioactive decay, but there's no tie-in to solar storms. – userLTK Jun 18 '15 at 18:38
• Just that Ve Vu Vt precede other particles. How can we use the counts if earth based atomic clocks (decay rates) shift? – Cymatical Jun 21 '15 at 16:22
• Somebody should repeat the experiment in a controlled underground environment. – Keith Thompson Jan 17 '16 at 20:09

In the paper that this report is based on, 1, they simply see an annual period in the $\beta$ decay rates of radioactive isotope samples in the lab. Basically, the rate is a fraction of a percent higher in winter than in summer. They conclude that absent any simple instrumentation explanation: