Strangeness production in Au(1.23A GeV)+Au collisions
- We present first data on centrality dependent K+, K− and ϕ production in Au+Au collisions at a kinetic beam energy of 1.23A GeV measured with HADES. We observe no significant increase of the K+/K− and ϕ/K− multiplicity ratios with centrality of the collision. The measured ϕ/K− ratio is found to be larger than results at higher energies. The significant ϕ feed-down contribution to the K− yield substantially softens the measured transverse mass spectrum of K−, explaining its lower observed effective temperature in comparison to the one of K+.
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| Author: | Heidi SchuldesGND |
|---|---|
| URN: | urn:nbn:de:hebis:30:3-773406 |
| DOI: | https://doi.org/10.1016/j.nuclphysa.2017.04.028 |
| ISSN: | 0375-9474 |
| Parent Title (English): | Nuclear Physics A |
| Publisher: | Elsevier |
| Place of publication: | Amsterdam |
| Document Type: | Article |
| Language: | English |
| Date of Publication (online): | 2017/09/25 |
| Date of first Publication: | 2017/09/25 |
| Publishing Institution: | Universitätsbibliothek Johann Christian Senckenberg |
| Creating Corporation: | HADES Collaboration |
| Contributing Corporation: | International Conference on Ultrarelativistic Nucleus-Nucleus Collisions (26. : 2017 : Chicago, Ill.) |
| Release Date: | 2023/10/06 |
| Tag: | Kaons; centrality dependence; effective temperature; strangeness; sub-threshold; φ feed-down |
| Volume: | 967 |
| Page Number: | 4 |
| First Page: | 804 |
| Last Page: | 807 |
| HeBIS-PPN: | 513173684 |
| Institutes: | Physik |
| Dewey Decimal Classification: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
| Sammlungen: | Universitätspublikationen |
| Licence (German): |  Creative Commons - CC BY - Namensnennung 4.0 International |
