Eur. Phys. J. A (2011) 47: 73
https://doi.org/10.1140/epja/i2011-11073-8

Regular Article - Experimental Physics

Highly excited alpha-cluster states in ³⁴S

¹ Department of Physics, Åbo Akademi, FIN-20500, Turku, Finland
² Russian Research Center “Kurchatov”, Moscow, Russia
³ Cyclotron Institute, Texas A & M University, College Station, TX, USA
⁴ Department of Physics, Florida State University, Tallahassee, FL, USA
⁵ Joint Institute for Nuclear Research, Dubna, Russia
⁶ Laboratori Nazionali del Sud, Istituto Nazionale di Fisica Nucleare, Catania, Italy
⁷ Dipartimento di Fisica ed Astronomia, Università di Catania, Catania, Italy
⁸ Department of Physics, University of Jyväskylä, Jyväskylä, Finland

^* e-mail: mnorrby@abo.fi

Received: 14 February 2011
Accepted: 29 April 2011
Published online: 10 June 2011

Abstract

The elastic-scattering reaction ³⁰Si + 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 -cluster structure in the quasi-continuum of ³⁴S and is compared to recent data for ³²S .