10Be AND MOLECULAR STATES

�URO MILJANI�^a, NEVEN SOI�^a, SA�A BLAGUS^a, SILVIO CHERUBINI^b, EVELINA COSTANZO^b, MARCELLO LATTUADA^b, MATKO MILIN^a, AGATINO MUSUMARRA^b, R. GIANLUCA PIZZONE^b, DUBRAVKO RENDI�^a, STEFANO ROMANO^b, CLAUDIO SPITALERI^b, AURORA TUMINO^b and MILE ZADRO^a

^aRu�er Bo�kovi� Institute, P.O.B. 180, 10001 Zagreb, Croatia

^bUniversita di Catania and INFN, Laboratori Nazionali del Sud, Catania, Italy

Dedicated to Professor Kseno Ilakovac on the occasion of his 70^th birthday

Received 15 August 2001; Accepted 21 January 2002
Online 6 April 2002

The ¹⁰Be excitation energy spectra have been obtained from the inclusive and coincident measurements of the reactions: ⁷Li +⁷Li at E₀ = 8 and 30 MeV and ⁹Be +⁷Li at E₀ = 52 MeV. Contributions of the ¹⁰Be states below 12 MeV in excitation have been observed. Decays of the states at 9.6, 10.2 and 11.8 into a +⁶He and, for the first time, into a +⁶He^* have been found. The results are discussed in addition to the other experimental data and recent theoretical predictions. Proposals for future measurements to search for exotic structures in carbon nuclei are also made.

PACS numbers: 25.70.-z, 27.20.+n
UDC 539.17

Keywords: nuclear reactions ⁷Li +⁷Li, E = 8 and 30 MeV, ⁹Be +⁷Li, E = 52 MeV, ¹⁰Be levels deduced, a +⁶He and a +⁶He^* decays