Naslov
Intruder dominance in the 02+ state of Mg32 studied with a novel technique for in-flight decays

Autori
Elder, R. ; Iwasaki, H. ; Ash, J. ; Bazin, D. ; Bender, P. C. ; Braunroth, T. ; Brown, B. A. ; Campbell, C. M. ; Crawford, H. L. ; Elman, B. ; Gade, A. ; Grinder, M. ; Kobayashi, N. ; Longfellow, B. ; Macchiavelli, A. O. ; Mijatović, Tea ; Pereira, J. ; Revel, A. ; Rhodes, D. ; Tostevin, J. A. ; Weisshaar, D.

Izvornik
Physical review. C (2469-9985) 100 (2019), 4; 041301(R), 7

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
direct reactions, lifetimes

Sažetak
The development of advanced γ-ray tracking arrays allows for a sensitive new technique to investigate elusive states of exotic nuclei with fast rare-isotope beams. By taking advantage of the excellent energy and position resolution of the Gamma-Ray Energy Tracking In-beam Nuclear Array, we developed a novel technique to identify in-flight isomeric decays of the 0+2 state in 32Mg populated in a two-proton removal reaction. We confirm the 0+2→2+1γ-ray transition of 32Mg and constrain the 0+2 decay lifetime, suggesting a large collectivity. The small partial cross section populating the 0+2 state in this reaction provides experimental evidence for the reduced occupancy of the normal configuration of the 0+2 state, indicating the intruder dominance of this state.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

POVEZANOST RADA