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Extrapolation of scattering data to the negative-energy region. Application to the $p-^{16}$O system
- Source :
- Phys. Rev. C 98, 064610 (2018)
- Publication Year :
- 2018
-
Abstract
- The problem of analytic continuation of the scattering data to the negative-energy region to obtain information on asymptotic normalization coefficients (ANCs) of bound states is discussed. It is shown that a recently suggested $\Delta$ method [O.L.Ram\'{\i}rez Su\'arez and J.-M. Sparenberg, Phys. Rev. C {\bf 96}, 034601 (2017)] is not strictly correct in the mathematical sense since it is not an analytic continuation of a partial-wave scattering amplitude to the region of negative energies. However, it can be used for practical purposes for sufficiently large charges and masses of colliding particles. Both the $\Delta$ method and the standard method of continuing of the effective range function are applied to the $p-^{16}$O system which is of interest for nuclear astrophysics. The ANCs for the ground $5/2^+$ and excited $1/2^+$ states of $^{17}$F are determined.
- Subjects :
- Nuclear Theory
Subjects
Details
- Database :
- arXiv
- Journal :
- Phys. Rev. C 98, 064610 (2018)
- Publication Type :
- Report
- Accession number :
- edsarx.1810.06812
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1103/PhysRevC.98.064610