Role of core excitation in (d,p) transfer reactions

Abstract

[Background:] Recent work found that core excitation can be important in extracting structure information from (d,p) reactions. [Purpose:] Our objective is to systematically explore the role of core excitation in (d,p) reactions, and understand the origin of the dynamical effects. [Method:] Based on the particle-rotor model of $n{+}^{10}$Be, we generate a number of models with a range of separation energies ($S_n=0.1-5.0$ MeV), while maintaining a significant core excited component. We then apply the latest extension of the momentum-space based Faddeev method, including dynamical core excitation in the reaction mechanism to all orders, to the ${}^{10}$Be(d,p)${}^{11}$Be like reactions, and study the excitation effects for beam energies from $E_d=15-90$ MeV. [Results:] We study the resulting angular distributions and the differences between the spectroscopic factor that would be extracted from the cross sections, when including dynamical core excitation in the reaction, to that of the original structure model. We also explore how different partial waves affect the final cross section. [Conclusions:] Our results show a strong beam energy dependence of the extracted spectroscopic factors that become smaller for intermediate beam energies. This dependence increases for loosely bound systems.

arXiv comment7 pages, 4 figures, to be published in Phys. Rev. C

References in corpus (14)

• The high-precision, charge-dependent Bonn nucleon-nucleon potential (CD-Bonn)
• Momentum-space treatment of Coulomb interaction in three-nucleon reactions with two protons
• Systematics of intermediate-energy single-nucleon removal cross sections
• Single-neutron transfer from 11Be gs via the (p,d) reaction with a radioactive beam
• Halo nucleus Be-11: A spectroscopic study via neutron transfer
• Testing the continuum discretized coupled channel method for deuteron induced reactions
• Continuum-Discretized Coupled-Channels calculations with core excitation
• Faddeev-type calculation of three-body nuclear reactions including core excitation
• Interplay between valence and core excitation mechanisms in the breakup of halo nuclei
• Three-body Faddeev-Alt-Grassberger-Sandhas approach to direct nuclear reactions
• Reactions of a Be-10 beam on proton and deuteron targets
• Core excitation in the elastic scattering and breakup of ${}^{11}$Be on protons
• Core Transitions in the Breakup of Exotic Nuclei
• Core excitation in three-body nuclear reactions: Improved nucleon-core potential

Cited by in corpus (13)

• Effective field theory description of halo nuclei
• Uncertainty Quantification for Optical Model Parameters
• Extracting three-body breakup observables from CDCC calculations with core excitations
• Examination of the adiabatic approximation for $(d,p)$ reactions
• Influence of target deformation and deuteron breakup in (d,p) transfer reactions
• Core-excitation effects in ${}^{20}\mathrm{O}(d,p){}^{21}\mathrm{O}$ transfer reactions: Suppression or enhancement?
• Effects of an induced three-body force in the incident channel of (d,p) reactions
• Practical method for decomposing discretized breakup cross sections into components of each channel
• Core-excitation effects in three-body breakup reactions studied using the Faddeev formalism
• Modeling of Deuteron Induced Reactions on Molybdenum at Low Energies
• Neutron transfer reactions in halo effective field theory
• Nonspherical Pauli-forbidden states in deformed halo nuclei: Impact on the ${}^7\mathrm{Be}+p$ resonant states in the particle rotor model
• Status of experimental knowledge on the unbound nucleus ${}^{13}$Be