Data di Pubblicazione:
2024
Citazione:
Onset of collectivity for argon isotopes close to N = 32 / B.D. Linh, A. Corsi, A. Gillibert, A. Obertelli, P. Doornenbal, C. Barbieri, T. Duguet et al. - In: PHYSICAL REVIEW C. - ISSN 2469-9985. - 109:1(2024 Mar 19), pp. 034312.1-034312.15. [10.1103/PhysRevC.109.034312]
Abstract:
The shell closure at N=32 has been investigated by a first spectroscopy of the N=31 nucleus 49Ar at the Radioactive Isotope Beam Factory. Using the 50Ar(p,pn) reaction channel in inverse kinematics, 50Ar projectiles at 217 MeV/nucleon impinged on a 150 mm long liquid hydrogen target, part of the MINOS device. Prompt deexcitation γ rays were measured with the NaI(Tl) array DALI2+. Reaction products were analyzed with the SAMURAI spectrometer, which allowed the measurement of the momentum distributions and angular momentum transfer. Data were compared to state-of-the-art theoretical predictions, including shell-model, energy-density functional, and ab initio calculations. An onset of collectivity is suggested besides the spherical configuration typical of a closed shell nucleus, such as for 52Ca
Tipologia IRIS:
01 - Articolo su periodico
Elenco autori:
B.D. Linh, A. Corsi, A. Gillibert, A. Obertelli, P. Doornenbal, C. Barbieri, T. Duguet et al
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