Phys.Rev. C 105, 014605 (2022)

A.Shrivastava, K.Mahata, I.Stefan, M.Assie, P.Adsley, D.Beaumel, V.M.Datar, A.Georgiadou, J.Guillot, F.Hammache, N.Keeley, Y.H.Kim, A.Meyer, V.Nanal, V.V.Parkar, N.de Sereville

Occupation probabilities of valence orbitals relevant to neutrinoless double β decay of ¹²⁴Sn

NUCLEAR REACTIONS ¹²⁴Te, ¹²⁴Sn(p, d)¹²³Te/¹²³Sn, E=22 MeV; ¹²⁴Te, ¹²⁴Sn(d, p)¹²⁵Te/¹²⁵Sn, E=15 MeV; ¹²⁴Te, ¹²⁴Sn(³He, α)¹²³Te/¹²³Sn, E=30 MeV; ¹²⁴Te, ¹²⁴Sn(α, ³He)¹²⁵Te/¹²⁵Sn, E=40 MeV; measured scattered particle spectra of deuterons, protons, ³He and α, σ(θ, E) by momentum analysis of particles by Enge Split Pole magnetic spectrometer, then focused on a focal-plane detection system of position-sensitive proportional and a plastic scintillator to identify particles via magnetic rigidity and energy-loss characteristics at the ALTO facility of IJCLab. ^123,125Te, ^123,125Sn; deduced levels, J, π, L-transfers, σ(θ), spectroscopic factors, configurations. DWBA analysis of σ(θ) distributions. ¹²⁴Sn, ¹²⁴Te; deduced neutron vacancies of active orbitals in their ground states, and compared with those in literature for ^128,130Te, provision of nuclear matrix element (NMEs) for 0νββ decay mode of ¹²⁴Sn. Relevance to ongoing efforts for the experiment TINTIN (The INdian TIN detector) at the India-based Neutrino Observatory (INO) to measure the neutrinoless double β decay of ¹²⁴Sn. ^123,125Te, ^123,125Sn; detailed results for level energies, Jπ, σ(θ) and spectroscopic factors are supplied in an .excel file in the Supplemental Material of the paper.

doi: 10.1103/PhysRevC.105.014605