Excitation of multipolar transitions in nuclei by twisted photons

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 $j⩾|m_{\gamma }|$, 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.

arXiv comment15 pp; some misprints corrected

References in corpus (10)

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Cited by in corpus (4)

• Observation of transition radiation carrying orbital angular momentum
• Surface photoelectric effect by twisted photons as a source of twisted electrons
• Detection of twisted radiowaves with Rydberg atoms
• Radiation of twisted photons in elliptical multifrequency undulators