Simultaneous description of elastic, fusion and total reaction cross sections for the 6He +209 Bi system for energies around the coulomb barrier
A systematic and simultaneous description of elastic scattering, reaction and fusion cross sections for the system 6 He +209 Bi at energies below the Coulomb barrier is given within the direct reaction theory. Woods-Saxon optical potentials are used in the calculations where a cut-off parameter R F is defined to separate the fusion and direct reaction absorption processes. A χ2 - search for energy dependent forms for the diffuseness parameter αI and the radial parameter R I of the imaginary potential Wα that best fits the experimental data is carried out. Good fits to the data are found. A relationship between the large values found for αI and R I with the large spatial extension of the halo nucleus 6 He wave function is also looked for.
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| Main Authors: | , |
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| Format: | Digital revista |
| Language: | English |
| Published: |
Sociedad Mexicana de Física
2004
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| Online Access: | http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S0035-001X2004000300009 |
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