期刊
PHYSICAL REVIEW C
卷 87, 期 1, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevC.87.014611
关键词
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资金
- European Union Sixth Framework Programme FP6 under the EURONS Contract [RII3-CT-2004-506065]
- European Union Seventh Framework Programme [262010-ENSAR]
- Croatian Ministry of Science, Education and Sports [0098-1191005-2890]
- US Department of Energy, Office of Nuclear Physics [DE-AC02-06CH11357]
- NSF [PHY-0758100, PHY-0822648]
- University of Notre Dame
The fusion excitation function of S-32 + Ca-48 has been experimentally studied in a wide energy range, from above the Coulomb barrier down to cross sections in the sub-mu b region. The measurements were done at INFN-Laboratori Nazionali di Legnaro, using the S-32 beam from the XTU Tandem accelerator. The excitation function has a smooth behavior below the barrier, and no evident hindrance character shows up in the measured energy region. The fusion barrier distribution has a peculiar shape with two distinct peaks of similar height, lower and higher than the Akyuz-Winther barrier. Coupled-channels calculations using the M3Y + repulsion potential are presented for this system and for S-36 + Ca-48. The results of these calculations give a good account of the data, and indicate the influence of one-and two-nucleon transfer channels with positive Q values, which are only open for S-32 + Ca-48.
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