Search of x-ray solar activity correlations with ⁵⁵Fe, ⁶⁰Co nucleus decay rates

Abstract

Several experimental groups observed temporary modulations of some nuclei strong and weak decay constants, which are of the order of 10−3 and with periods of one year, solar day, i.e. 24 hours and some others. In our experiments the decay rates were measured for 55Fe e-capture and 60Co β-decay during 2012–2020. Altogether, six decay rate dips of the order 10−2 – 10−3 and with duration from 40 to 208 hours were found, they deviate essentially from exponential decay rate fit. It is shown that their occurrence correlate with x-ray solar flares with significant reliability. Besides, two long term deviations of 55Fe decay rate of 62 and 41 days were observed in 2017–2018, it’s argued that they are related to the change of 11 year solar cycle stages.

Nonlinear Quantum Nonolocality and its Cosmophysical Tests

“…Such reaction rate variations supposedly can occur during solar flare formation, because it results in intense ejection of charged particles and γ-quanta from solar surface [54]. It supposedly can be the reason for observed correlations between solar flare moments and isotope decay rate decline on Earth [28,27]. It was assumed above that NC should not change any subsystem average energy, in our model this condition fulfilled in WKB approximation.…”

“…Life-time of αdecay isotopes 212 Po, 213 Po, 214 Po was measured directly, the annual and daily oscillations with amplitude of the order 7 * 10 −4 , with annual minimum at March and daily minimum around 6 p.m. were found during 6 years of measurements [30,31]. It was shown also that decay rates of 53 Mn, 55 Fe e-capture and 60 Co β-decay correlate with solar activity, in particular, with intense solar flare moments, preceding them for several days; in this case, observed decay variations are of the order 10 −3 [27,28].…”

“…For example, enlargement of metastable system life-time can be treated as the growth of evolution symmetry, because the decay probability rate p c (t) becomes more homogeneous in time, its asymptotic limit is p c (t) → const for t > t 0 . It is notable that experimental results reviewed above demonstrate enlargement of nucleus life-time induced by enhanced solar activity [28,27], the same is true for its influence on some chemical reaction rates [32,34].…”

“…Up to now it was acknowledged that due to strong nuclear forces no environment influence can change decay parameters of unstable nuclei significantly [26]. However, recent results indicate that some cosmophysical factors related to Earth motion along its orbit and solar activity can influence them, in particular, their life-time and decay rate [27,28,30,31,29]. First results, indicating deviations from standard exponential β-decay rate dependence, were obtained during the precise measurement of 32 Si isotope decay rate [29].…”

“…Hence proposed NC mechanism can change, in principle, the evolution symmetry in both directions enlarging or reducing it. Thermonuclear reactions in the Sun result in production of unstable isotopes [26], hence according to that model, variations of such reaction intensity can result in variation of solar NC influence rate on nuclear decay parameters on the Earth [28,27]. Such reaction rate variations supposedly can occur during solar flare formation, because it results in intense ejection of charged particles and γ-quanta from solar surface [54].…”