Dr
Laura Moschini
(Université libre de Bruxelles (ULB))
We study various reactions involving the one-neutron halo nucleus 15C using a single structure model based on Halo EFT. First, we determine the low-energy constants needed in this description of 15C to reproduce both the one-neutron binding energy of 15C ground state and the asymptotic normalization coefficient (ANC) extracted through the analysis of the 14C(d,p)15C transfer reaction at 17.06 MeV [1,2]. Then, we study the 15C breakup at high (605 AMeV [3]) and intermediate (68 AMeV [4]) energies using an eikonal model with a consistent treatment of nuclear and Coulomb interactions at all orders, which takes into account proper relativistic corrections. We show the importance of the inclusion of relativistic corrections in the former case. Finally, we study the 14C(n,gamma)15C radiative capture comparing our results to the direct measurements performed by Reifarth et al. [5]. Our theoretical predictions are in excellent agreement with the experimental data for each reaction, thus assessing the robustness of the structure model provided for this nucleus.
[1] A. M. Mukhamedzhanov et al. Phys. Rev. C 84, 024616 (2011).
[2] J. Yang and P. Capel, Phys. Rev. C 98, 054602 (2018).
[3] U. D. Pramanik et al. Phys. Lett. B551, 63 (2003).
[4] T. Nakamura et al. Phys. Rev. C 79, 035805 (2009).
[5] R. Reifarth et al. Phys. Rev. C 77, 015804 (2008).
Summary
We study various reactions involving the one-neutron halo nucleus 15C using a single structure model based on Halo EFT. First, we determine the low-energy constants needed in this description of 15C to reproduce both the one-neutron binding energy of 15C ground state and the asymptotic normalization coefficient (ANC) extracted through the analysis of the 14C(d,p)15C transfer reaction at 17.06 MeV [1,2]. Then, we study the 15C breakup at high (605 AMeV [3]) and intermediate (68 AMeV [4]) energies using an eikonal model with a consistent treatment of nuclear and Coulomb interactions at all orders, which takes into account proper relativistic corrections. We show the importance of the inclusion of relativistic corrections in the former case. Finally, we study the 14C(n,gamma)15C radiative capture comparing our results to the direct measurements performed by Reifarth et al. [5]. Our theoretical predictions are in excellent agreement with the experimental data for each reaction, thus assessing the robustness of the structure model provided for this nucleus.
[1] A. M. Mukhamedzhanov et al. Phys. Rev. C 84, 024616 (2011).
[2] J. Yang and P. Capel, Phys. Rev. C 98, 054602 (2018).
[3] U. D. Pramanik et al. Phys. Lett. B551, 63 (2003).
[4] T. Nakamura et al. Phys. Rev. C 79, 035805 (2009).
[5] R. Reifarth et al. Phys. Rev. C 77, 015804 (2008).
