Bremsstrahlung radiation by a tunneling particle

Details Bremsstrahlung radiation by a tunneling particle Bremsstrahlung radiation by a tunneling particle

1998-12-21

arxiv.org/abs/nucl-ex/9812009v1

Phys.Rev. C60 (1999) 031602

Physics

Nuclear Physics

Nuclear Experiment

4 pages, 4 figures

Scientific paper

10.1103/PhysRevC.60.031602

We study the bremsstrahlung radiation of a tunneling charged particle in a time-dependent picture. In particular, we treat the case of bremsstrahlung during alpha-decay, which has been suggested as a promissing tool to investigate the problem of tunneling times. We show deviations of the numerical results from the semiclassical estimates. A standard assumption of a preformed particle inside the well leads to sharp high-frequency lines in the bremsstrahlung emission. These lines correspond to "quantum beats" of the internal part of the wavefunction during tunneling arising from the interference of the neighboring resonances in the well.

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