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Two particles coincidences of identified 15C and unidentified particle from 9 13 Be C + collisions are analyzed as three particles exit channel 9 13 15 3 Be C C He (, ) α and 9 13 15 4 Be C C He (, ) τ . In spectrum of α −τ relative energy 7 Be well-known states with 7 ( ) E Be x = 4,7, 6,73 and 9,2 МeV are identified and other at 7 ( ) E Be x ~11,6, 13, (14,1), 15,7 and 18 MeV are also possible. Situation that states of 7 Be with 7 ( ) E Be x = 7,21 and ~ 10 МеВ are not observed in those reactions are explained their not α −τ cluster structure.

Many-particle exit channels 9 13 13 5 Be C C He (, ) α and 9 13 13 8 . . (, ) Be C C Be n g s from the 9 13 Be C + interaction have been experimentally investigated. Information has been received on 8 Be n g s. . − and 5 α − He configurations associated with 9 Be excitation states. Comparison of these configurations with calculations based on alpha-cluster conception with a valence neutron is discussed.