D. Castillo

activity

20242026

collaborators

3 papers

nucl-th2026

Two-neutrino $I^^{2} I^^{2}$ decay to excited states at next-to-leading order

Daniel Castillo, Dorian Frycz, Beatriz Benavente +1

We study two-neutrino double-beta decay ( $2 I^½ I^^{2} I^^{2}$ ) into first-excited $0_{2}^{+}$ states of nuclei used in $I^^{2} I^^{2}$ decay experiments, including $^{76}$ Ge, $^{82}$ Se, $^{130}$ Te, and $^…

nucl-th2025

Neutrinoless $I^^{2} I^^{2}$ 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 ( $I ¨ $ EFT) for the neutrinoless double-beta ( $0 I^½ I^^{2} I^^{2}$ )…

hep-ph2024

Neutrinoless double beta decay rates in the presence of light sterile neutrinos

W. Dekens, J. de Vries, D. Castillo +5

We investigate neutrinoless double-beta decay ( $0 I^½ I^^{2} I^^{2}$ ) in minimal extensions of the Standard Model of particle physics where gauge-singlet right-handed neutrinos give rise to Di…

Two-neutrino I^2I^2 decay to excited states at next-to-leading order

Neutrinoless I^2I^2 decay nuclear matrix elements complete up to N2LO in heavy nuclei

Neutrinoless double beta decay rates in the presence of light sterile neutrinos

Two-neutrino $I^^{2} I^^{2}$ decay to excited states at next-to-leading order

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