Isospin-symmetry breaking in kaon production: The role of charge-symmetry
An excess of charged versus neutral kaons has been recently reported by the NA61/SHINE collaboration. Similar excesses were also present in previous experiments, even if with larger errors. Models for hadron productions in heavy ion collisions systematically underestimate the measured charge-toneutr...
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| Language: | English |
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EDP Sciences
2025-01-01
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| Series: | EPJ Web of Conferences |
| Online Access: | https://www.epj-conferences.org/articles/epjconf/pdf/2025/01/epjconf_sqm2024_03002.pdf |
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| _version_ | 1832098421944614912 |
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| author | Giacosa Francesco |
| author_facet | Giacosa Francesco |
| author_sort | Giacosa Francesco |
| collection | DOAJ |
| description | An excess of charged versus neutral kaons has been recently reported by the NA61/SHINE collaboration. Similar excesses were also present in previous experiments, even if with larger errors. Models for hadron productions in heavy ion collisions systematically underestimate the measured charge-toneutral kaon ratio. In this report, we comment on the role of charge-symmetry as a specific isospin transformation. In particular, we show that the ensemble of the initial colliding nuclei being charge-symmetric is sufficient for producing an equal number of charged and neutral kaons in the isospin-symmetry exact limit. |
| format | Article |
| id | doaj-art-817415555ffe4022b5ca0cee16156d5d |
| institution | Kabale University |
| issn | 2100-014X |
| language | English |
| publishDate | 2025-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj-art-817415555ffe4022b5ca0cee16156d5d2025-02-05T10:53:01ZengEDP SciencesEPJ Web of Conferences2100-014X2025-01-013160300210.1051/epjconf/202531603002epjconf_sqm2024_03002Isospin-symmetry breaking in kaon production: The role of charge-symmetryGiacosa Francesco0Institute of Physics, Jan Kochanowski UniversityAn excess of charged versus neutral kaons has been recently reported by the NA61/SHINE collaboration. Similar excesses were also present in previous experiments, even if with larger errors. Models for hadron productions in heavy ion collisions systematically underestimate the measured charge-toneutral kaon ratio. In this report, we comment on the role of charge-symmetry as a specific isospin transformation. In particular, we show that the ensemble of the initial colliding nuclei being charge-symmetric is sufficient for producing an equal number of charged and neutral kaons in the isospin-symmetry exact limit.https://www.epj-conferences.org/articles/epjconf/pdf/2025/01/epjconf_sqm2024_03002.pdf |
| spellingShingle | Giacosa Francesco Isospin-symmetry breaking in kaon production: The role of charge-symmetry EPJ Web of Conferences |
| title | Isospin-symmetry breaking in kaon production: The role of charge-symmetry |
| title_full | Isospin-symmetry breaking in kaon production: The role of charge-symmetry |
| title_fullStr | Isospin-symmetry breaking in kaon production: The role of charge-symmetry |
| title_full_unstemmed | Isospin-symmetry breaking in kaon production: The role of charge-symmetry |
| title_short | Isospin-symmetry breaking in kaon production: The role of charge-symmetry |
| title_sort | isospin symmetry breaking in kaon production the role of charge symmetry |
| url | https://www.epj-conferences.org/articles/epjconf/pdf/2025/01/epjconf_sqm2024_03002.pdf |
| work_keys_str_mv | AT giacosafrancesco isospinsymmetrybreakinginkaonproductiontheroleofchargesymmetry |