Abstract
Nucleon removal reactions have been shown to be an effective tool for studying the single particle structure of nuclei. This work continues efforts to experimentally probe and benchmark the reaction and structure models used to calculate the removal reaction cross sections when using microscopic nuclear structure inputs. Three different single nucleon removal reactions were performed, from p-shell nuclei with masses A=7, 9, and 10. The residual nuclei from the reactions were detected in coincidence with γ rays to determine partial cross sections to individual final states. The eikonal direct-reaction model is combined with overlap functions and residual nucleus densities from microscopic, variational Monte Carlo calculations to provide consistent nuclear structure input to the partial cross section calculations. Comparisons of measured and calculated cross sections, including for mirror reactions, are presented. The analysis of the partial cross sections leading to the ground states shows a similar behavior to the one observed from analyses of inclusive cross sections using shell model nuclear structure input: the theoretical description of the removal process is in better agreement with the data when removing weakly bound nucleons, than when removing well-bound ones. The two mirror reaction pairs presented here show consistent results between the respective members of the pairs. The results obtained for the population of the excited states, however, show a systematically different trend that appears connected to the structure part of the calculation. Additional cases are needed to better understand the respective roles of structure and dynamical effects in the deviations.
| Original language | English |
|---|---|
| Article number | 034314 |
| Journal | Physical Review C |
| Volume | 105 |
| Issue number | 3 |
| DOIs | |
| State | Published - Mar 2022 |
| Externally published | Yes |
Funding
The authors would like to thank the NSCL staff for providing the multiple beams used in this experiment. This is work is supported in part by the U. S. National Science Foundation under Grants No. 1102511 (NSCL), No. 2011398 (A.N.K.), No. 1306074 (P.D.Y.), and the U. S. Department of Energy, Office of Science, Office of Nuclear Physics under Grant No. DE-SC0020451 (D.B., A.G.), DOE Grant No. DE-AC05-06CH11357 (R.B.W.). R.B.W. acknowledges the support of the NUCLEI SciDAC project and Argonne's Laboratory Computing Resource Center. J.A.T. acknowledges the support of the United Kingdom Science and Technology Facilities Council (STFC) Grant No. ST/F005314/1.