D. Castillo

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nucl-th2025

Two-neutrino $β β$ decay to excited states at next-to-leading order

Daniel Castillo, Dorian Frycz, Beatriz Benavente +1

We study two-neutrino double-beta decay ( $2 ν β β$ ) into first-excited $0_{2}^{+}$ states of nuclei used in $β β$ decay experiments, including $^{76}$ Ge, $^{82}$ Se, $^{130}$ Te, and $^{136}…

nucl-th2024

Neutrinoless $β β$ decay nuclear matrix elements complete up to N $^{2}$ LO in heavy nuclei

Daniel Castillo, Lotta Jokiniemi, Pablo Soriano +1

We evaluate all nuclear matrix elements (NMEs) up to next-to-next-to leading order (N $^{2}$ LO) in chiral effective field theory ( $χ$ EFT) for the neutrinoless double-beta ( $0 ν β β$ ) dec…

Two-neutrino ββ decay to excited states at next-to-leading order

Neutrinoless ββ decay nuclear matrix elements complete up to N2LO in heavy nuclei

Two-neutrino $β β$ decay to excited states at next-to-leading order

Neutrinoless $β β$ decay nuclear matrix elements complete up to N $^{2}$ LO in heavy nuclei