Coulomb dissociation of 27 P: A reaction of astrophysical interest
- Beceiro-Novo, S.
- Summerer, K.
- Cortina-Gil, D.
- Wimmer, C.
- Plag, R.
- Alvarez-Pol, H.
- Aumann, T.
- Behr, K. H.
- Boretzky, K.
- Casarejos, E.
- Chatillon, A.
- Datta Pramanik, U.
- Elekes, Z.
- F\ufcl\uf6p, Z.
- Galaviz, D.
- Geissel, H.
- Giron, S.
- Greife, U.
- Hammache, F.
- Heil, M.
- Hoffman, J.
- Johansson, H\ue5kan T
- Karagiannis, C.
- Kiselev, O.
- Kurz, N.
- Larsson, K.
- Le Bleis, T.
- Litvinov, Y.
- Mahata, K.
- Muentz, C.
- Nociforo, C.
- Ott, W.
- Paschalis, S.
- Prokopowicz, W.
- Rodriguez-Tajes, C.
- Rossi, D.
- Simon, H.
- Stanoiu, M.
- Stroth, J.
- Typel, S.
- Wagner, A.
- Wamers, F.
- Weick, H.
DOIAbstract
The ground-state decay of 26Al(0+) (T 1/2=1.05 7 106) has a shorter life-time than the Universe. The presence of this element in the Galaxy was measured via g-ray spectroscopy, showing that the nucleosynthesis of this element is an ongoing process in stars. The proton-capture reaction 26Si(p,γ) 27P competes with the production of 26Al(0+) by β-decay. Coulomb dissociation of 27P has been suggested as an indirect method to measure radiative-proton capture when the direct reaction is not feasible. Such an experiment was performed at GSI with a secondary 27P beam produced by fragmenting a 36Ar primary beam at 500 A MeV. Two main observables are preliminarily presented in this work: the reaction cross section and the relative-energy spectrum of ...
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