Precise measurement of nuclear interaction cross sections towards neutron-skin determination with R3B
(2025) In Nuclear Physics A 1056.- Abstract
The R3B (Reactions with Relativistic Radioactive Beams) experiment as a major instrument of the NUSTAR collaboration for the research facility FAIR in Darmstadt is designed for kinematically complete studies of reactions with high-energy radioactive beams. Part of the broad physics program of R3B is to constrain the asymmetry term in the nuclear equation-of-state and hence improve the description of highly asymmetric nuclear matter (e.g., in neutron stars). For a precise determination of the neutron-skin thickness – an observable which is directly correlated with the symmetry energy in theoretical calculations – by measuring absolute fragmentation cross sections, it is essential to quantify the uncertainty and... (More)
The R3B (Reactions with Relativistic Radioactive Beams) experiment as a major instrument of the NUSTAR collaboration for the research facility FAIR in Darmstadt is designed for kinematically complete studies of reactions with high-energy radioactive beams. Part of the broad physics program of R3B is to constrain the asymmetry term in the nuclear equation-of-state and hence improve the description of highly asymmetric nuclear matter (e.g., in neutron stars). For a precise determination of the neutron-skin thickness – an observable which is directly correlated with the symmetry energy in theoretical calculations – by measuring absolute fragmentation cross sections, it is essential to quantify the uncertainty and challenge the reaction model under stable conditions. During the successful FAIR Phase-0 campaign of R3B, we precisely measured the energy dependence of total interaction cross sections in 12C+12C collisions, for a direct comparison with calculations based on the eikonal reaction theory.
(Less)
- author
- Ponnath, L. ; Wamers, Felix and Cederkall, J. LU
- author collaboration
- organization
- publishing date
- 2025-04
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Nuclear Physics A
- volume
- 1056
- article number
- 123022
- publisher
- Elsevier
- external identifiers
-
- scopus:85216748625
- ISSN
- 0375-9474
- DOI
- 10.1016/j.nuclphysa.2025.123022
- language
- English
- LU publication?
- yes
- additional info
- Publisher Copyright: © 2025 The Author(s)
- id
- c1ed71ff-0c9c-4f29-ad72-149abed0b694
- date added to LUP
- 2025-03-22 16:42:21
- date last changed
- 2025-04-04 14:52:48
@article{c1ed71ff-0c9c-4f29-ad72-149abed0b694,
abstract = {{<p>The R<sup>3</sup>B (Reactions with Relativistic Radioactive Beams) experiment as a major instrument of the NUSTAR collaboration for the research facility FAIR in Darmstadt is designed for kinematically complete studies of reactions with high-energy radioactive beams. Part of the broad physics program of R<sup>3</sup>B is to constrain the asymmetry term in the nuclear equation-of-state and hence improve the description of highly asymmetric nuclear matter (e.g., in neutron stars). For a precise determination of the neutron-skin thickness – an observable which is directly correlated with the symmetry energy in theoretical calculations – by measuring absolute fragmentation cross sections, it is essential to quantify the uncertainty and challenge the reaction model under stable conditions. During the successful FAIR Phase-0 campaign of R<sup>3</sup>B, we precisely measured the energy dependence of total interaction cross sections in <sup>12</sup>C+<sup>12</sup>C collisions, for a direct comparison with calculations based on the eikonal reaction theory.</p>}},
author = {{Ponnath, L. and Wamers, Felix and Cederkall, J.}},
issn = {{0375-9474}},
language = {{eng}},
publisher = {{Elsevier}},
series = {{Nuclear Physics A}},
title = {{Precise measurement of nuclear interaction cross sections towards neutron-skin determination with R<sup>3</sup>B}},
url = {{http://dx.doi.org/10.1016/j.nuclphysa.2025.123022}},
doi = {{10.1016/j.nuclphysa.2025.123022}},
volume = {{1056}},
year = {{2025}},
}