Shedding light on nuclear aspects of neutrinoless double beta decay by heavy-ion double charge exchange reactions

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Abstract

We review the status and prospects of heavy-ion double charge exchange (HI-DCE) reactions. Their important role for nuclear reaction, nuclear structure and double beta-decay investigations is outlined. From the experimental side the characteristically tiny cross sections for these processes and the high background generated by other more probable competing reactions is the main challenge, which has hindered HI-DCE spectroscopy until recent years. Modern magnetic spectrometers have proven to possess the right requisites to overcome past limitations, fostering the present and future development of the field. From the theory side, the description of the measured HI-DCE cross sections poses manifold challenges. Dealing with processes which involve composite nuclei, HI-DCE reactions can, in principle, proceed through several alternative paths. These, in turn, correspond to different reaction mechanisms probing competing aspects of nuclear structure, from mean field to various classes of nucleon–nucleon interactions and correlations. A powerful way to scrutinize the nuclear response to HI-DCE is to consistently link it to the information extracted from the competing direct reactions. Indeed, these complementary studies are mandatory in order to minimize the systematic errors in the data analyses and build a many-facets and parameter-free representation of the systems under study.

Original languageEnglish
Article number103999
JournalProgress in Particle and Nuclear Physics
Volume128
DOIs
StatePublished - Jan 2023

Funding

FundersFunder number
NURE714625
Alexander von Humboldt-StiftungP20_01247, PID2020-114687GB-I00, FQM-160
Alexander von Humboldt-Stiftung
Horizon 2020 Framework Programme
Consejería de Economía, Conocimiento, Empresas y Universidad, Junta de Andalucía
European Research Council
Deutsche ForschungsgemeinschaftLe439/16
Deutsche Forschungsgemeinschaft
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
Conselho Nacional de Desenvolvimento Científico e Tecnológico
Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro
Dirección General de Asuntos del Personal Académico, Universidad Nacional Autónoma de México
Horizon 2020
European Regional Development Fund
Instituto Nacional de Ciência e Tecnologia: Física Nuclear e AplicaçõesIN101320, 464898/2014-5
Instituto Nacional de Ciência e Tecnologia: Física Nuclear e Aplicações

    Keywords

    • Double beta decay
    • Heavy-ion reactions
    • Multi-channel approach for direct reactions
    • Nuclear double charge exchange reactions
    • Theory of charge exchange excitations

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