alpha-Decay中韧致辐射的再研究
Bremsstrahlung in alpha-Decay Reexamined
摘要：
高统计测量的韧致辐射中发射的α衰变的210 Po，这使得以下的光子谱的能量为~ 500 keV。测量的微分发射几率与我们在准经典近似下得到的理论结果以及精确的量子力学计算结果吻合得很好。它示出，由于小的有效电偶极子电荷的辐射系统的电偶极子和四极贡献之间发生显着的干扰，这是改变基本上α粒子和发射的光子之间的角相关。
英文摘要：
A high-statistics measurement of bremsstrahlung emitted in the alpha decay of 210Po has been performed, which allows to follow the photon spectra up to energies of ~ 500 keV. The measured differential emission probability is in good agreement with our theoretical results obtained within the quasi classical approximation as well as with the exact quantum mechanical calculation. It is shown that due to the small effective electric dipole charge of the radiating system a significant interference between the electric dipole and quadrupole contributions occurs, which is altering substantially the angular correlation between the alpha particle and the emitted photon.
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