Pregled bibliografske jedinice broj: 918416
Evidence for 15O+α resonance structures in 19Ne via direct measurement
Evidence for 15O+α resonance structures in 19Ne via direct measurement // Physical Review C, 96 (2017), 4; 044317, 7 doi:10.1103/PhysRevC.96.044317 (međunarodna recenzija, članak, znanstveni)
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Naslov
Evidence for 15O+α resonance structures in 19Ne via direct measurement
Autori
Torresi, D. ; Wheldon, C. ; Kokalova, Tz. ; Bailey, S. ; Boiano, A. ; Boiano, C. ; Fisichella, M. ; Mazzocco, M. ; Parascandolo, C. ; Pierroutsakou, D. ; Strano, E. ; Zadro, Mile ; Cavallaro, M. ; Cherubini, S. ; Curtis, N. ; Di Pietro, A. ; Garcia Fernandez J.P. ; Figuera, P. ; Glodariu, T. ; Grebosz, J. ; La Cognata, M. ; La Commara, M. ; Lattuada, M. ; Mengoni, D. ; Pizzone, R.G. ; Signorini, C. ; Stefanini, C. ; Stroe, L. ; Spitaleri, C.
Izvornik
Physical Review C (2469-9985) 96
(2017), 4;
044317, 7
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
15O ; readiactive beam ; resonant scattering ; 19Ne ; cluster structure
Sažetak
States in the astrophysically important 19Ne nucleus have been populated directly using the 15O(α, α)15O reaction with a radioactive 15O beam. Due to the challenges involved, this represents the first such 15O measurement with high resolution and the first dedicated to exploring the cluster structure. This measurement comprises three experiments: the first to develop the 15O radioactive beam, the second the resonant scattering study, and the third to measure the precise energy loss of O ions in 4He to reduce systematic uncertainties. The results show evidence for 15O+α cluster structure which could explain earlier results pointing to the increased α branching ratio in the astrophysical reaction rate for high-spin near-threshold resonances. Absolute differential cross sections have been measured. Additionally, spins, parities, and partial decay widths, essential for nuclear reaction-rate calculations, have been extracted using an R-matrix analysis.
Izvorni jezik
Engleski
Znanstvena područja
Fizika
POVEZANOST RADA
Projekti:
HRZZ-IP-2013-11-7194 - Nuklearna struktura i reakcije: eksperimentima prema neutronskoj liniji kapanja (SR-ETNo) (Szilner, Suzana, HRZZ - 2013-11) ( CroRIS)
Ustanove:
Institut "Ruđer Bošković", Zagreb
Profili:
Mile Zadro
(autor)
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus