2018 Impact factor 2.481
Hadrons and Nuclei
Eur. Phys. J. A 7, 181-187

The $\alpha$-12C scattering studied via the Trojan-Horse method

C. Spitaleri1,2 - M. Aliotta1,2 - P. Figuera1 - M. Lattuada1,3 - R.G. Pizzone1,2 - S. Romano1 - A. Tumino1,3 - C. Rolfs4 - L. Gialanella4 - F. Strieder4 - S. Cherubini5 - A. Musumarra5 - D - . Miljanic6 - S. Typel7 - H.H. Wolter7

1 Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali del Sud, Catania, Italy
2 Dipartimento di Metodologie Fisiche e Chimiche per l'Ingegneria, Università di Catania, Italy
3 Dipartimento di Fisica, Università di Catania, Italy
4 Institut für Experimentalphysik III, Ruhr-Universität Bochum, Germany
5 Institut de Physique Nucleaire, Louvain-la-Neuve, Belgium
6 Rudjer Boskovic Institute, Zagreb, Croatia
7 Ludwig Maximilians Universität München, Germany
spitaleri@lns.infn.it

Received: 4 June 1999 / Revised version: 15 November 1999 Communicated by C. Signorini

Abstract
The Trojan-horse method has been suggested as a means to study a two-body reaction at astrophysical energies via a three-body breakup reaction. In order to test this method the 6Li(12C,$\alpha$$\,$12C)2H reaction was studied in a kinematically complete experiment at an incident energy of 18 MeV. Coincidence spectra show the presence of the quasi-free $\alpha$-12C scattering process. The excitation function of the three-body reaction is calculated in the plane wave impulse approximation assuming quasi-free scattering and is compared with the experimental data. Also, the excitation function of the virtual $\alpha$-12C elastic scattering is extracted from the three-body reaction cross section at low deuteron momenta and compared with the behaviour of the free scattering cross section.

PACS
24.50.+g direct reactions - 24.10 nuclear reactions models- and methods - 26.20.+f hydrostatic stellar nucleosynthesis


Copyright Società Italiana di Fisica, Springer-Verlag 2000