- spectroscopy of proton-rich nuclei in explosive nuclear astrophysics
DESCRIPTION
- Spectroscopy of Proton-rich Nuclei in Explosive Nuclear Astrophysics. PJ Woods, University of Edinburgh on behalf of ANL, Edinburgh, York collaboration. NOVA, X-RAY Bursts,Type I SN. Z . rp process. IGNITION REACTIONS. - PowerPoint PPT PresentationTRANSCRIPT
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- Spectroscopy of Proton-rich Nuclei in Explosive Nuclear Astrophysics
PJ Woods, University of Edinburgh
on behalf of ANL, Edinburgh, York collaboration
T
I VY
OI N B
H
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Z
IGNITIONREACTIONS
NOVA, X-RAY Bursts,Type I SN
rp process
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25,6Al(p,)26,7Si reactions and the abundance of the cosmic gamma ray emitter 26Al
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The FMA at ATLAS
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GammaSphere Coupled to the FMA
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16O + 12C -> 26Si + 2n
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Gate on 2+ ->0+ transition in 26Si
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New results on gamma decaying states above proton thresholdin 27Si D Seweryniak, PJW et al., data being analysed
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15O(,)19Ne reaction rate
First measurements of lifetimes of key astrophysical resonances in 19Ne made by Notre Dame Group
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17 O(3 He, n –gamma)19Ne reaction used at Notre Dame tomake 1st measurement of lifetime of astrophysicalresonance, WP Tan et al. PRC 72 041302 (2005)
(also Kanungo et al. PRC 74 045803 (2006))
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12 C + 10 B -> 19 Ne + 1p2n
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Decays from 4.03 and 4.38 MeV states in 19Ne
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Gamma energy as a function of gammasphere angle
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Abundance curve of the elementsab
unda
nce
Atomic number
Fe
“The 11 Greatest Unanswered Questions of Physics”based on National Academy of Science Report, 2002
[Committee for the Physics of the Universe (CPU)]
How were the elements from iron to uranium made?
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R-process nuclei will be synthesised by the fastfission of 1 GeV/u 238U ions at the new FAIR facility
Advanced Implantation Detection Array (AIDA)- will use new ASIC instrumented DSSDs
238U fission fragmentsfrom new super-FRS
N
DESPEC collaboration
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Summary
New data on 26,7Si resonances (and 24 Al)
Analysis in progress on Lifetimes of 19 Ne
Resonances
New AIDA project underway for FAIR
decay measurements on Super-FRS