2022
DOI: 10.1016/j.physletb.2022.136965
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γγ decay as a probe of neutrinoless ββ decay nuclear matrix elements

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Cited by 18 publications
(3 citation statements)
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“…Electromagnetic decays connect states in the same nucleus such that a relation with 0νββ decay can be expected only in the final ββ-decay system, when the initial state is the double isobaric analog (the state with the same nuclear structure but rotated in isospin space) of the initial ββ-decay state. A recent study found a linear correlation between γγ magnetic dipole and 0νββ-decay NMEs in the shell-model framework (Romeo, Menéndez, and Peña, 2022), opening the door to exploring 0νββ decay with nuclear spectroscopy.…”
Section: Muon Capture and Neutrino Scatteringmentioning
confidence: 99%
“…Electromagnetic decays connect states in the same nucleus such that a relation with 0νββ decay can be expected only in the final ββ-decay system, when the initial state is the double isobaric analog (the state with the same nuclear structure but rotated in isospin space) of the initial ββ-decay state. A recent study found a linear correlation between γγ magnetic dipole and 0νββ-decay NMEs in the shell-model framework (Romeo, Menéndez, and Peña, 2022), opening the door to exploring 0νββ decay with nuclear spectroscopy.…”
Section: Muon Capture and Neutrino Scatteringmentioning
confidence: 99%
“…In [43], the 0νββ NMEs and double GT (DGT) transitions were calculated for 48 Ca with shell model using GXPF1B and KB3G effective Hamiltonians and then for heavier isotopes with the EDF and pnQRPA methods. In [44], the relation between double gamma (γγ) decay NMEs and 0νββ NMEs was investigated. The calculations were performed within the shell model approach for a wide range of nuclei, using different effective Hamiltonians for the configuration spaces specific to different nuclear regions.…”
Section: Nuclear Matrix Elementsmentioning
confidence: 99%
“…There is no one suitable experimental probe that can cover the wide range of momentum components and multi-polarities within the nuclear states involved—the Majorana-neutrino exchange between the two nucleons is localized within 2 fm, resulting in a momentum spread of 105 MeV/ c [76]. Nevertheless, experimental data from various sources, including studies on ordinary muon capture [84,85], nucleon transfer reactions [86,87], double gamma decay [88] and reactions involving single-charge exchange and double-charge exchange (DCE) [89], have been or can be utilized to constrain specific aspects of the calculations related to NMEs in 0 ν β β decay. A good correlation has also been found between the 2 ν β β and 0 ν β β decay NMEs [90,91].…”
Section: Neutrinoless Double-beta Decaymentioning
confidence: 99%