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Highly excited alpha-cluster states in 34S

Research paper by M. Norrby, T. Lönnroth, V. Z. Goldberg, G. V. Rogachev, M. S. Golovkov, K. -M. Källman, M. Lattuada, S. V. Perov, S. Romano, B. B. Skorodumov, G. P. Tiourin, W. H. Trzaska, A. Tumino, A. N. Vorontsov

Indexed on: 10 Jun '11Published on: 10 Jun '11Published in: The European Physical Journal A



Abstract

The elastic-scattering reaction 30Si + \( \alpha\) was studied using the Thick Target Inverse Kinematics technique. Data were taken at a 30Si beam energy of 150MeV in a reaction chamber filled with 4He gas, corresponding to the excitation region of 12-24MeV in 34S . The data were treated in the framework of a simplified R -matrix approach, and energies, widths and spin assignments were obtained for 111 resonances in an approximative manner. The structure is discussed within the concept of \( \alpha\) -cluster structure in the quasi-continuum of 34S and is compared to recent data for 32S .