Formal theory of heavy ion double charge exchange reactions

The theory of heavy ion double charge exchange (DCE) reactions A(Z, N) → A(Z ± 2, N ∓ 2) is recapitulated emphasizing the role of Double Single Charge Exchange (DSCE) and pion-nucleon Majorana DCE (MDCE) reactions. DSCE reactions are of second–order distorted wave character, mediated by isovector nu...

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Main Authors: Lenske Horst, Bellone Jessica, Colonna Maria, Gambacurta Danilo, Lay Jose-Antonio
Format: Article
Language:English
Published: EDP Sciences 2024-01-01
Series:EPJ Web of Conferences
Online Access:https://www.epj-conferences.org/articles/epjconf/pdf/2024/02/epjconf_nrm2023_04001.pdf
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author Lenske Horst
Bellone Jessica
Colonna Maria
Gambacurta Danilo
Lay Jose-Antonio
author_facet Lenske Horst
Bellone Jessica
Colonna Maria
Gambacurta Danilo
Lay Jose-Antonio
author_sort Lenske Horst
collection DOAJ
description The theory of heavy ion double charge exchange (DCE) reactions A(Z, N) → A(Z ± 2, N ∓ 2) is recapitulated emphasizing the role of Double Single Charge Exchange (DSCE) and pion-nucleon Majorana DCE (MDCE) reactions. DSCE reactions are of second–order distorted wave character, mediated by isovector nucleon-nucleon (NN) interactions. The DSCE response functions resemble the nuclear matrix elements (NME) of 2ν2β decay. The MDCE process proceeds by a dynamically generated effective rank-2 isotensor interaction, defined by off–shell pion–nucleon DCE scattering. In closure approximation pion potentials and two–nucleon correlations are obtained, similar to the neutrino potentials and the intranuclear exchange of Majorana neutrinos in 0ν2β Majorana double beta decay (MDBD).
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spelling doaj.art-00e6320dec3142bc8ce10a5f6ba7fdf02024-03-22T08:03:11ZengEDP SciencesEPJ Web of Conferences2100-014X2024-01-012920400110.1051/epjconf/202429204001epjconf_nrm2023_04001Formal theory of heavy ion double charge exchange reactionsLenske Horst0Bellone Jessica1Colonna Maria2Gambacurta Danilo3Lay Jose-Antonio4Institut für Theoretische Physik, JLU GiessenIstituto Nazionale di Fisica Nucleare, Laboratori Nazionali del SudIstituto Nazionale di Fisica Nucleare, Laboratori Nazionali del SudIstituto Nazionale di Fisica Nucleare, Laboratori Nazionali del SudUniversity of SevillaThe theory of heavy ion double charge exchange (DCE) reactions A(Z, N) → A(Z ± 2, N ∓ 2) is recapitulated emphasizing the role of Double Single Charge Exchange (DSCE) and pion-nucleon Majorana DCE (MDCE) reactions. DSCE reactions are of second–order distorted wave character, mediated by isovector nucleon-nucleon (NN) interactions. The DSCE response functions resemble the nuclear matrix elements (NME) of 2ν2β decay. The MDCE process proceeds by a dynamically generated effective rank-2 isotensor interaction, defined by off–shell pion–nucleon DCE scattering. In closure approximation pion potentials and two–nucleon correlations are obtained, similar to the neutrino potentials and the intranuclear exchange of Majorana neutrinos in 0ν2β Majorana double beta decay (MDBD).https://www.epj-conferences.org/articles/epjconf/pdf/2024/02/epjconf_nrm2023_04001.pdf
spellingShingle Lenske Horst
Bellone Jessica
Colonna Maria
Gambacurta Danilo
Lay Jose-Antonio
Formal theory of heavy ion double charge exchange reactions
EPJ Web of Conferences
title Formal theory of heavy ion double charge exchange reactions
title_full Formal theory of heavy ion double charge exchange reactions
title_fullStr Formal theory of heavy ion double charge exchange reactions
title_full_unstemmed Formal theory of heavy ion double charge exchange reactions
title_short Formal theory of heavy ion double charge exchange reactions
title_sort formal theory of heavy ion double charge exchange reactions
url https://www.epj-conferences.org/articles/epjconf/pdf/2024/02/epjconf_nrm2023_04001.pdf
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