First experimental test of the ratio method
The ratio is a new reaction observable suggested to extract accurately structure information on halo nuclei. It corresponds to the ratio of differential cross sections for scattering and breakup, which is predicted to remove the uncertainty related to the reaction dynamics. We present here the first experimental test of the method for the 11 Be + 12 C collision at E Lab = 20 A MeV performed at Texas A&M University. Differential cross sections for scattering and inclusive one-neutron breakup have been measured with the new detector array BlueSTEAl. The ratio of cross sections is very smooth and independent of the projectile-target interaction, which demonstrates the validity of the ratio method . We extend our analysis to existing 11 Be + 208 Pb data, confirming that the method works well on any target.
Authors
- Michael Roosa
- D. P. Scriven (ORCID: https://orcid.org/0000-0002-3853-2200)
- P. Capel (ORCID: https://orcid.org/0000-0001-8722-7133)
- Filipa Nunes (ORCID: https://orcid.org/0000-0002-1315-3327)
- Satoshi Ota (ORCID: https://orcid.org/0000-0002-7042-4293)
- Roch Christian Johnson (ORCID: https://orcid.org/0000-0001-7827-8182)
- G. Christian
- Edward B. Harris
- Kristin Hagel
- V. Durant
- A. Saastamoinen
- Zhihao Luo
Institutions
- Johannes Gutenberg University Mainz (DE)
- Brookhaven National Laboratory (US)
- University of Surrey (GB)
- Saint Mary's University (CA)
- Michigan State University (US)
- Texas A&M University (US)
Publication Details
- Journal
- Nuclear Physics A
- Published
- 2025-04-23
- DOI
- https://doi.org/10.1016/j.nuclphysa.2025.123120
- Primary Topic
- Nuclear physics research studies
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- U.S. Department of Energy
- Deutsche Forschungsgemeinschaft
- Natural Sciences and Engineering Research Council of Canada
- Science and Technology Facilities Council