Abstract
This contribution reports the recent experimental studies for the coupling effect of the positive Q-value neutron transfer (PQNT) channels on near-barrier fusion with heavy-ions, measured by an electrostatic deflector setup. This effect is expected to be important in some situations. In this presentation, the experimental studies for the nearbarrier fusion of 32 S +90,94,96 Zr,16 O +76 Ge,18 O +74 Ge, and16,18 O +58 Ni are reported. Also a method, based on the CCFULL calculations with suitable inelastic couplings, to sort out the PQNT effect is presented.
Highlights
Near-barrier fusion with heavy-ions offers a good platform to study the two basic mechanisms of tunneling and coupling [1,2] in the quantum world
The possible effect of positive Q-value neutron transfers (PQNT) on near-barrier fusion was first discovered by Beckerman et al [3] in the experimental comparison of the fusion excitation functions of 58,64Ni + 58,64Ni and, explained firstly by Broglia et al [4] by considering the gained kinematic energy for the intermediate states as an important doorway to fusion [5]
This contribution reports the recent experimental studies for the coupling effect of PQNT on near-barrier fusion with heavy-ions measured by an electrostatic deflector setup
Summary
Near-barrier fusion with heavy-ions offers a good platform to study the two basic mechanisms of tunneling and coupling [1,2] in the quantum world. The possible effect of positive Q-value neutron transfers (PQNT) on near-barrier fusion was first discovered by Beckerman et al [3] in the experimental comparison of the fusion excitation functions of 58,64Ni + 58,64Ni and, explained firstly by Broglia et al [4] by considering the gained kinematic energy for the (virtual) intermediate states as an important doorway to fusion [5]. This contribution reports the recent experimental studies for the coupling effect of PQNT on near-barrier fusion with heavy-ions measured by an electrostatic deflector setup.
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