Elastic alpha-particle resonances as evidence of clustering at high excitation in Ca-40

M Norrby, T Lönnroth, VZ Goldberg, GV Rogachev, MS Golovkov, Kjell-Mikael Källman, M Lattuada, SV Perov, S Romano, BB Skorodumov, GP Tiourin, WH Trzaska, A Tumino, AN Vorontsov

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The elastic-scattering reaction Ar-36 + alpha was studied using the Thick Target Inverse Kinematics technique. Data were taken at a beam energy of 150MeV in a reaction chamber filled with He-4 gas, corresponding to the excitation region of 12-20MeV in Ca-40. Using a simplified R-matrix method of analysis energies, widths and spin assignments were obtained for 137 resonances. The structure is discussed within the concept of alpha-cluster structure in the quasi-continuum of Ca-40 and is compared to other nuclei in the same mass region.
Original languageUndefined/Unknown
Pages (from-to)
Number of pages7
JournalEuropean Physical Journal A: Hadrons and Nuclei
Publication statusPublished - 2011
MoE publication typeA1 Journal article-refereed

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