New excited 2+ and 3- two-proton states in Po126 84210 populated by two-proton transfer

E. Dupont, A. Astier, C. M. Petrache, B. F. Lv, I. Deloncle, J. Kiener, R. Orlandi, H. Makii, K. Nishio, K. Hirose, M. Asai, T. K. Sato, K. Tsukada, Y. Ito, K. R. Kean, R. Yanagihara, G. Scamps

Research output: Contribution to journalArticle

Abstract

Five new 2+ levels have been established in the semimagic Po210 nucleus from a 208Pb(12C, 10Be) two-proton transfer experiment, performed at energies close to the Coulomb barrier at JAEA Tokai. A setup combining Ge, LaBr3, and Si telescopes was used to detect both in-beam γ rays and ejectile residues. The new 2+ states have been established by means of the transitions toward the 0+ ground state which are present in the γ spectra produced by properly selecting the excitation energy in Po210 after kinematical reconstruction. (f7/2)2, h9/2 ⊗ - f5/2, (i13/2)2, f7/2 ⊗ - p3/2, and f7/2 ⊗ - f5/2 two-proton configurations are assigned to these states. In addition, a new 3- level has also been established in this nucleus, very likely originating from the f7/2 ⊗ - i13/2 configuration. Shell-model calculations strongly support these assignments. .

Original languageEnglish
Article number014309
JournalPhysical Review C
Volume101
Issue number1
DOIs
Publication statusPublished - Jan 13 2020
Externally publishedYes

    Fingerprint

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Cite this

Dupont, E., Astier, A., Petrache, C. M., Lv, B. F., Deloncle, I., Kiener, J., ... Scamps, G. (2020). New excited 2+ and 3- two-proton states in Po126 84210 populated by two-proton transfer. Physical Review C, 101(1), [014309]. https://doi.org/10.1103/PhysRevC.101.014309