Explanation of the observed violation of isospin symmetry in relativistic nucleus-nucleus reactions
Fuente:
arXiv
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Preprint |
| Published: |
2025
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866909536743325696 |
|---|---|
| author | Reichert, Tom Steinheimer, Jan Bleicher, Marcus |
| author_facet | Reichert, Tom Steinheimer, Jan Bleicher, Marcus |
| contents | The violation of isospin symmetry in nucleus-nucleus reactions, as shown in the ratio ${R_K=(K^++K^-)/(K^0+\bar{K}^0)}$ presented by NA61/SHINE, can be understood by introducing results from color-string fragmentation in $e^+e^-$ to nuclear reactions. This novel input allows for a consistent description of the $e^+e^-$ data, proton+proton data and finally nucleus-nucleus data at all investigated energies. We conclude that the observed isospin violation in nucleus-nucleus reactions is explained by asymmetric production of up- and down-quarks in the elementary color field fragmentation process. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2503_10493 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Explanation of the observed violation of isospin symmetry in relativistic nucleus-nucleus reactions Reichert, Tom Steinheimer, Jan Bleicher, Marcus Nuclear Theory High Energy Physics - Phenomenology Nuclear Experiment The violation of isospin symmetry in nucleus-nucleus reactions, as shown in the ratio ${R_K=(K^++K^-)/(K^0+\bar{K}^0)}$ presented by NA61/SHINE, can be understood by introducing results from color-string fragmentation in $e^+e^-$ to nuclear reactions. This novel input allows for a consistent description of the $e^+e^-$ data, proton+proton data and finally nucleus-nucleus data at all investigated energies. We conclude that the observed isospin violation in nucleus-nucleus reactions is explained by asymmetric production of up- and down-quarks in the elementary color field fragmentation process. |
| title | Explanation of the observed violation of isospin symmetry in relativistic nucleus-nucleus reactions |
| topic | Nuclear Theory High Energy Physics - Phenomenology Nuclear Experiment |
| url | https://arxiv.org/abs/2503.10493 |