Determination of asymptotic normalization coefficients for the channel $^{16}\mathrm{O}\rightarrow\alpha+^{12}\mathrm{C}$. II. Excited states $^{16}\mathrm{O}(3^-,2^+,1^-)$
| Pub type: | Article |
| Citation: | LDBlokhintsev_TEPJA_v59_p |
| Status: | Published |
| Journal: | The European Physical Journal A |
| Volume: | 59 |
| Number: | 7 |
| Year: | 2023 |
| Month: | Jul |
| Pages: | 4 |
| Publisher: | Springer Science and Business Media {LLC} |
| URL: | https://doi.org/10.1140%2Fepja... |
| DOI: | 10.1140/epja/s10050-023-01079-4 |
| Abstract: | {Asymptotic normalization coefficients (ANC) determine the overall normalization of cross sections of peripheral radiative capture reactions. In a recent paper [Blokhintsev et al., Eur. Phys. J. A 58, 257 (2022)], we considered theANCC0 for the virtual decay 16O(0+; 6.05MeV)→ α+12C(g.s.). In the present paper, which can be regarded as a continuation of the previous, we treat the ANCs Cl for the vertices 16O(J π ) → α+12C(g.s.) corresponding to the other three bound excited states of 16O (J π = 3−, 2+, 1−, l=J). ANCs Cl (l=3,2,1) are found by analytic continuation in energy of the α12c l-wave partial scattering amplitudes, known from the phase-shift analysis of experimental data, to the pole corresponding to the 16obound state and lying in the unphysical region of negative energies. to determine cl, the scattering data are approximated by the sum of polynomials in energy in the physical region and then extrapolated to the pole. for a more reliable determination of the ancs, various forms of functions expressed in terms of phase shifts were used in analytical approximation and subsequent extrapolation.} |
| Month_val: | 7 |
| Authors: | |
| Added by: | [DGM] |
| Total mark: | 0 |
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