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arXiv 1402.4530astro-ph.HE
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与电子对产生有关的共振康普顿散射

Resonant Compton scattering associated with pair creation

Jeanette I Weise

摘要:

强磁场中相对论性电子的康普顿散射的研究一直局限于沿磁场排列的入射光子角$B$或低于第一对产生阈值$ω'_{PC}$的入射光子能量$ω'$。当放松这些限制时,在与对产生(PC)相关联的康普顿散射中存在共振,其类似于但独立于与旋磁吸收(GA)相关联的已知共振。与可以由相关状态的朗道量子数标记的GA共振一样,存在散射截面发散的PC共振序列。本文研究了入射光子能量满足${ω'}^2\sin^2θ'/(2eB)\ll1$时,散射电子处于基态(朗道)时的最低发散度。这种最低的共振只影响平行偏振的光子。

英文摘要:

Studies of Compton scattering by relativistic electrons in a strong magnetic field have been restricted to either incident photon angles $θ'$ aligned along the magnetic field $B$ or incident photon energies $ω'$ below the first pair creation threshold $ω'_{PC}$. When these restrictions are relaxed there is a resonance in Compton scattering associated with pair creation (PC), that is analogous to but independent of known resonances associated with gyromagnetic absorption (GA). As with the GA resonances, that may be labeled by the Landau quantum numbers of the relevant states, there is a sequence of PC resonances where the scattering cross section diverges. In this paper, the lowest divergence is studied for incident photon energies satisfying ${ω'}^2\sin^2θ'/(2eB)\ll1$, assuming that the scattering electron is in its ground (Landau) state. This lowest resonance affects only parallel-polarized photons.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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