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Fusion excitation functions have been measured for the first time with rather good accuracy for 32 S + 90 Zr and 32 S + 96 Zr near and below the Coulomb barrier. The sub-barrier cross sections for 32 S + 96 Zr are much larger than for 32 S + 90 Zr. A coupled-channels calculation considering the inelastic excitations is capable of describing sub-barrier enhancement only for 32 S + 90 Zr. The unexplained part for 32 S + 96 Zr is found to be correlated with the positive-Q-value intermediate neutron transfers in this system. The comparison with 40 Ca + 96 Zr suggests that couplings to the positive-Q-value neutron transfer channels may play a role in the sub-barrier fusion enhancement. Multi-neutron transfers are taken into account in Zagrebaev's semiclassical model to explain the discrepancies of the sub-barrier fusion cross sections for 32 S + 96 Zr.

A cluster-transfer experiment 9 Be( 9 Be, 14 C * → α+ 10 Be)α was carried out using an incident beam energy of 45 MeV. This reaction channel has a large Q-value that favors populating the high-lying states in 14 C and separating various reaction channels. A number of resonant states are reconstructed from the forward emitting 10 Be + α fragments with respect to three sets of well discriminated final states in 10 Be, most of which agree with the previous observations. A state at 22.5(1) MeV in 14 C is found to decay predominantly into the states around 6 MeV in 10 Be daughter nucleus, in line with the unique property of the predicted band head of the σ-bond linear-chain molecular states. A new state at 23.5(1) MeV is identified which decays strongly into the first excited state of 10 Be.

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