Measurements of total reaction cross sections for ¹⁷Ne using a solid hydrogen target

We measured the energy dependence of the total reaction cross sections (σ_R) for the proton-drip-line nucleus,¹⁷Ne, using a solid hydrogen target. We compared the experimental data with theoretical calculations using the Glauber model. We found that the theoretical cross sections overestimate the experimental ones in the low-energy region (∼100A MeV), whereas they significantly underestimate the experimental data in the intermediate-energy region (∼300-500A MeV). These trends are the same as those for σ_R for carbon-proton collisions, which were measured previously. We discuss several possibilities for resolving this discrepancy. This work demonstrates the necessity of additional careful investigations of the energy dependence of σ_R for various nuclei on proton targets in order to determine nuclear size properties precisely.