Presentation on theme: "E.C. Simpson C. Ugalde M. Heil P.J. LeBlank R.J. DeBoer H. Costantini E. Uberseder R.E. Azuma C.R. Brune J. Goerres M.M. Wiescher “ In addition, the authors."— Presentation transcript:
E.C. Simpson C. Ugalde M. Heil P.J. LeBlank R.J. DeBoer H. Costantini E. Uberseder R.E. Azuma C.R. Brune J. Goerres M.M. Wiescher “ In addition, the authors are indebted To Fred C. Barker and (ANU, Canberra) and Erich Vogt (Triumf, Vancouver) for many discussions and their help in the AZURE R-matrix project.”
Measurement of 16O Widths: Determination of 15N+p astrophysical reactions All reactions and data sets analyzed simultaneously (Including radiative direct capture) Reactions studied: 12C(α,α0)12C 12C(α,α1)12C 12C(α,p)15N 12C(α,γ)16O 15N(p,p0)15N 15N(p,α0)12C 15N(p,α1)12C 15N(p,γ)16O Data Sets: (a,a0) (a,a1) (a,p0) (a,g) Tischausser x Morris et al x Feng et al x Mitchel et al x Mitchel+Ophel x Schuerman et al x (p,p0) (p0,a0) (p,a1) (p,g) Hagedorn x Hagedorn+Marion x Bashkin et al x x Redder et al x Bray et al x LeBlank etal x
Graphical representation of the related uncertainty between two of the R-matrix fit parameters for the broad resonance at 2.5 MeV. Here the change in chi2 would be on the z- axis. Since the shape is elliptical this signifies that the two parameters have very little correlation. That is, the alpha and gamma widths for this resonance are good (not redundant) fit parameters.
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