Quasiclassical description of bremsstrahlung accompanying α decay including quadrupole radiation

U. D. Jentschura, A. I. Milstein, I. S. Terekhov, H. Boie, H. Scheit, D. Schwalm

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9 Citations (Scopus)


We present a quasiclassical theory of α decay accompanied by bremsstrahlung with a special emphasis on the case of Po210, with the aim of finding a unified description that incorporates both the radiation during the tunneling through the Coulomb wall and the finite energy Eγ of the radiated photon up to Eγ~Qα/η, where Qα is the α-decay Q-value and η is the Sommerfeld parameter. The corrections with respect to previous quasiclassical investigations are found to be substantial, and excellent agreement with a full quantum mechanical treatment is achieved. Furthermore, we find that a dipole-quadrupole interference significantly changes the α-γ angular correlation. We obtain good agreement between our theoretical predictions and experimental results.

Original languageEnglish
Article number014611
JournalPhysical Review C - Nuclear Physics
Issue number1
Publication statusPublished - jan. 31 2008


ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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