- Spectroscopy of Proton-rich Nuclei in Explosive Nuclear Astrophysics

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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
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NOVA, X-RAY Bursts,Type I SN
Z ?
rp process
IGNITION REACTIONS
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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 -gt 26Si 2n
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Gate on 2 -gt0 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 -gt 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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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?
Abundance curve of the elements
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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 fragments from new super-FRS
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