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arXiv · 2312.03803

Excitation of multipolar transitions in nuclei by twisted photons

P. O. Kazinski·A. A. Sokolov
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Abstract

The explicit expression for the probability of absorption of a twisted photon by an atomic nucleus has been obtained. It is shown that photoabsorption obeys the selection rule $j\geqslant|m_\gamma|$, where $j$ is the multipolarity of the nuclear transition, when the nuclei lie near the axis along which a twisted photon with a projection of the total angular momentum $m_\gamma$ propagates. In the long-wave limit, the main contribution to the probability of absorption of a twisted photon comes from the multipole transition with $j=|m_\gamma|$. The absorption coefficient for twisted photons in a target consisting of many nuclei has been found.

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P. O. Kazinski, A. A. Sokolov. 2023-12-06. Excitation of multipolar transitions in nuclei by twisted photons. https://doi.org/10.1134/s1063778824700364

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