Study of the¹²C excited states above the Hoyle State

In this work we study the low-lying excited states of¹²C, especially above the Hoyle state (0⁺, 7,654 MeV) through the use of the¹⁴N(d,α)¹²C reaction. The EN-Tandem at ININ delivered deuteron beams between 2.5 and 7.5 MeV. Typical beam intensities were 20-50 nA. Two different compounds were used to produce thin films: Si₃N₄ (150 nm) and of C₅H₅N₅ (10 μm). Angular distributions of emitted α-particles were measured at each energy. The first results of the analysis are presented including quantum number assignments (energy, spin and parity) of the excited states populated. (paper)