论文标题
从遍历镜子的狄拉克粒子波包的过渡辐射
Transition radiation from a Dirac particle wave packet traversing a mirror
论文作者
论文摘要
包容性概率的明确表达是记录从一个dirac粒子波遍历横穿理想导电板的过渡辐射中产生的光子的表达，这是在扰动理论的领先顺序中得出的。考虑到狄拉克粒子的异常磁矩。结果表明，从电动粒子过渡辐射的量子校正会导致与反应平面正交（$ e $平面）偏振矢量正交的光子产生。这些校正是由波数据包的量子后坐力和有限尺寸产生的。至于正常落入导电板上的中子产生的过渡辐射，检测具有极化矢量的光子的概率不取决于观察角和入射粒子的能量。研究了来自粒子波包的不同形状的过渡辐射的特殊性。特别是，描述了由一个扭曲的狄拉克粒子的波数据包产生的过渡辐射。给出了与经典方法的过渡辐射方法的比较，并得出了检测由$ n $ - 粒子波包辐射的光子的量子公式。
The explicit expression for the inclusive probability to record a photon created in transition radiation from a one Dirac particle wave packet traversing an ideally conducting plate is derived in the leading order of perturbation theory. The anomalous magnetic moment of the Dirac particle is taken into account. It is shown that the quantum corrections to transition radiation from an electrically charged particle give rise to production of photons with polarization vector orthogonal to the reaction plane ($E$-plane). These corrections result from both the quantum recoil and the finite size of a wave packet. As for transition radiation produced by a neutron falling normally onto the conducting plate, the probability to detect a photon with polarization vector lying in the reaction plane does not depend on the observation angle and the energy of the incident particle. The peculiarities of transition radiation stemming from different shapes of the particle wave packet are investigated. In particular, the transition radiation produced by the wave packet of one twisted Dirac particle is described. The comparison with classical approach to transition radiation is given and the quantum formula for the inclusive probability to detect a photon radiated by the $N$-particle wave packet is derived.
