Breakup dynamic polarization potential for H-6 + Pb-208 at 27-MeV
Aug, 20045 pages
Published in:
- Phys.Rev.C 70 (2004) 024604
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Abstract: (APS)
We study the local dynamic polarization potential, DPP, component of the He6+Pb208 interaction generated by the coupling to breakup channels as calculated using the continuum-discretized coupled-channels (CDCC) method. The results are for He6 at a laboratory energy of 27MeV. The elastic channel S-matrix is inverted and the bare potential of the CDCC calculation is subtracted to yield the DPP. This has a very long attractive and absorptive tail, with the real component extending beyond 40fm, generated by Coulomb breakup. Although the long tail of the DPP has a major effect on the elastic S-matrix, it is shallow enough to have a more modest effect on the root mean square (rms) radius (increased) and the volume integrals. To facilitate comparison with other theories, the potential tails are fitted to analytic forms.- 25.60.-t
- 24.50.+g
- 25.10.+s
- 24.10.-i
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