The effect of intense electromagnetic fields with complex configuration on nuclear betadecay View Full Text


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Article Info

DATE

1997-01

AUTHORS

V. N. Rodionov

ABSTRACT

This paper discusses how an electromagnetic field consisting of a superposition of a constant magnetic field and a field of laser type can affect nuclear beta decay. In general it is not assumed that the intensities of the two types of fields are small compared to the characteristic field Hcr*=β1Hcr, where Hcr=m2c3/eℏ and the quantity β1 depends on the energy liberated in the decay and the configuration of the electromagnetic field. For nonrelativistic decays the quantity β1 is found to be of the same order as the maximum kinetic energy of an electron referenced to its rest energy β1∼I≪1. It is assumed that the frequency of the wave field satisfies ℏω/mc2⩽I. The behavior of the probability for the process is studied over a wide range of the fundamental parameters that characterize the fields. Corresponding asymptotic expressions are derived in the “weak”-and “strong”-field regimes. Also discussed are so-called interference corrections to the unperturbed decay probability, which cannot in principle be studied by the methods of perturbation theory. It is shown that the times and distances that are important in generating these contributions exceed the parameters of the unperturbed processes, just as in the case of a plane-wave field previously investigated in detail by Nikishov and Ritus. However, in contrast to the case of a pure wave field, when a system is simultaneously subjected to a constant magnetic field and a wave field, the degree to which these characteristic regions are enlarged can depend not only on the intensities of the electromagnetic fields but also on their rates of change, even in the limit in which the wave field is slowly varying. More... »

PAGES

1-12

Identifiers

URI

http://scigraph.springernature.com/pub.10.1134/1.558135

DOI

http://dx.doi.org/10.1134/1.558135

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1018473178


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