Abstract
The reaction25Mg(p,γ)26Al has been investigated atE p (lab)=80-350keV. The existence of the resonance atE p =317keV has been verified and new resonances have been found atE p =198, 255 and 304 keV. TheE p = 304keV resonance represents a new compound state in26A1. Information on branching ratios,Ωγ values, total widths andJ π assignments for the observed resonances as well as upper limits on themy strengths for the expected resonances atE p =97 and 134 keV are given. The astrophysical aspects of the data are discussed in the light of the renewed interest in the precise location of26A1 nucleosynthesis.
Similar content being viewed by others
References
Lee, T., Papanastassiou, D.A., Wasserburg, G.J.: Ap. J. (Letters)211, L107 (1977)
Lee, T., Papanastassiou, D.A., Wasserburg, G.J.: Geochim. Cosmochim. Acta41, 1473 (1977)
Lee, T., Papanastassiou, D.A., Wasserburg, G.J.: Ap. J. (Letters)220, L21 (1978)
Cameron, A.G.W., Truran, J.W.: Icarus30, 447 (1977)
Truran, J.W., Cameron, A.G.W.: Ap. J.219, 226 (1978)
Arnett, W.D., Wefel, J.P.: Ap. J. (Letters)224, L139 (1978)
Norgaard, N.: Proc. Intern. Workshop. Hirschegg (Universität Darmstadt 1978) p. 204
Arnould, M., Hillebrandt, W., Thielemann, F.K.: Preprint MPI-PAE 157 (1978). München: Max-Planck-Institut
Ward, R.A., Fowler, W.A.: California Institute of Technology OAP-560 (1979)
DeNeijs, E.O., Myer, M.A., Reinecke, J.P.L., Reitmann, D.: Nucl. Phys. A230, 490 (1974)
Endt, P.M., Van der Leun, C.: Nucl. Phys. A310, 1 (1978)
Freye, T., Lorenz-Wirzba, H., Cleff, B., Trautvetter, H.P., Rolfs, C.: Z. Phys. A281, 211 (1977)
Elix, K.: Diplomarbeit 1979, Universität Münster
Schmalbrock, P.: Staatsexamensarbeit 1976, Universität Münster
Marion, J.B., Young, F.C.: Nuclear reaction analysis. Amsterdam: North Holland 1968
Trautvetter, H.P.: Nucl. Phys. A243, 37 (1974)
Endt, P.M.: Preprint 1979
Fowler, W.A., Caughlan, G.R., Zimmerman, B.A.: Ann. Rev. Astron. Astrophys.13, 69 (1975)
Author information
Authors and Affiliations
Additional information
Supported in part by the Deutsche Forschungsgemeinschaft (Ro 429/4-7)
The authors would like to thank B. Cleff and W. Verhoeven for the help in providing high beam currents at the 350kV Münster accelerator as well as H.P. Trautvetter, W.E. Kieser and G. Hulke for the help and discussions during the course of the experiments. The help of H. Baumeister and S. Dyck in the target preparation is highly appreciated.
Rights and permissions
About this article
Cite this article
Elix, K., Becker, H.W., Buchmann, L. et al. Search for low-energy resonances in25Mg(p,γ)26Al. Z Physik A 293, 261–268 (1979). https://doi.org/10.1007/BF01435595
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF01435595