Isotopic dependence of fusion barrier energies in reactions forming heavy elements
D. J. HindeDepartment of Nuclear Physics, Research School of Physical Sciences and Engineering, Australian National University, Canberra, ACT 0200, AustraliaM. DasguptaDepartment of Nuclear Physics, Research School of Physical Sciences and Engineering, Australian National University, Canberra, ACT 0200, AustraliaNicholas HerraldDepartment of Nuclear Physics, Research School of Physical Sciences and Engineering, Australian National University, Canberra, ACT 0200, AustraliaR. G. NeilsonDepartment of Nuclear Physics, Research School of Physical Sciences and Engineering, Australian National University, Canberra, ACT 0200, AustraliaJ.O. NewtonDepartment of Nuclear Physics, Research School of Physical Sciences and Engineering, Australian National University, Canberra, ACT 0200, AustraliaMichael A. LaneDepartment of Nuclear Physics, Research School of Physical Sciences and Engineering, Australian National University, Canberra, ACT 0200, Australia
2007en
ABI
Аннотация
The systematic dependence of fusion barrier energies on neutron excess can be determined over a broader range using radioactive nuclei. It is shown that precise measurements with a wide range of stable isotopes are necessary for optimum interpretation of radioactive beam measurements. New precision cross-section data for fusion of $^{32,34,36}\mathrm{S}$ projectiles with Pb isotopes are presented, aiding in a revised interpretation of recent $^{38}\mathrm{S}$ fusion data, which now appears more likely to follow the same trend as the stable isotopes than to show the unexpected behavior previously inferred.
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