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arXiv · 2505.24753

Heavy Ion Double Charge Exchange Reactions as Probes for Two-Body Transition Densities

Jessica I. Bellone·Maria Colonna·Danilo Gambacurta·Horst Lenske
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Abstract

Collisional heavy ion double charge exchange (DCE) reactions, induced by second order nucleon-nucleon interactions, are shown to provide access to the two-body transition densities of the complementary DCE transitions in the interacting nuclei. Corresponding two-body operators are introduced, treating the second order distorted wave reaction amplitude in the s-channel interaction form. The theoretical results are applied to the reaction $^{18}O+{}^{76}Se\to {} ^{18}Ne+{}^{76}Ge$ at $T_{lab}=270$~MeV, being $^{76}Ge$ a candidate for neutrino--less double beta decay.

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Jessica I. Bellone, Maria Colonna, Danilo Gambacurta, Horst Lenske. 2025-05-30. Heavy Ion Double Charge Exchange Reactions as Probes for Two-Body Transition Densities. https://arxiv.org/abs/2505.24753

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