Probing the quantum phase transition near 𝑁≈60 via mass measurements of technetium isotopes

Le résumé fourni par la source

The masses of neutron-rich 104–106Tc isotopes were measured using the JYFLTRAP double Penning trap and found to deviate from the Atomic Mass Evaluation 2020 by −79(25), 40(12), and 94(41) keV, respectively. In the case of 105,106Tc, the updated Qβ values are in agreement with a previous JYFLTRAP measurement, disagreeing with the values from the mass evaluation. The new mass values result in a more linear trend in two-neutron separation energies indicating that technetium (Z = 43) isotopes around N ≈ 60 are not a part of the island of shape coexistence around 100Zr60.

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.