Beta decay and other processes in strong electromagnetic fields |
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Authors: | E Kh Akhmedov |
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Institution: | 1.Max-Planck-Institut für Kernphysik,Heidelberg,Germany;2.Kurchatov Institute,Moscow,Russia |
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Abstract: | We consider effects of the fields of strong electromagnetic waves on various characteristics of quantum processes. After a
qualitative discussion of the effects of external fields on the energy spectra and angular distributions of the final-state
particles as well as on the total probabilities of the processes (such as decay rates and total cross sections), we present
a simple method of calculating the total probabilities of processes with production of nonrelativistic charged particles.
Using nuclear β decay as an example, we study the weak- and strong-field limits, as well as the field-induced β decay of nuclei stable in the absence of the external fields, both in the tunneling and multiphoton regimes. We also consider
the possibility of accelerating forbidden nuclear β decays by lifting the forbiddeness due to the interaction of the parent or daughter nuclei with the field of a strong electromagnetic
wave. It is shown that for currently attainable electromagnetic fields all effects on total β-decay rates are unobservably small. |
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