Enhanced fusion-evaporation cross sections in neutron-rich 132Sn on 64Ni.
نویسندگان
چکیده
Evaporation residue cross sections have been measured with neutron-rich radioactive 132Sn beams on 64Ni in the vicinity of the Coulomb barrier. The average beam intensity was 2 x 10(4) particles per second and the smallest cross section measured was less than 5 mb. Large sub-barrier fusion enhancement was observed. Coupled-channel calculations taking into account inelastic excitation significantly underpredict the measured cross sections below the barrier. The presence of several neutron transfer channels with large positive Q values suggests that multinucleon transfer may play an important role in enhancing the fusion of 132Sn and 64Ni.
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ورودعنوان ژورنال:
- Physical review letters
دوره 91 15 شماره
صفحات -
تاریخ انتشار 2003