Production of hypernuclei from antiproton capture within a relativistic transport model
Fuente:
arXiv
Gespeichert in:
| Hauptverfasser: | , , , |
|---|---|
| Format: | Preprint |
| Veröffentlicht: |
2024
|
| Schlagworte: | |
| Online-Zugang: | |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| _version_ | 1866914664366997504 |
|---|---|
| author | Schmidt, Alexander Gaitanos, Theodoros Obertelli, Alexandre Rodríguez-Sánchez, José-Luis |
| author_facet | Schmidt, Alexander Gaitanos, Theodoros Obertelli, Alexandre Rodríguez-Sánchez, José-Luis |
| contents | Production yields of single-$Λ$ hypernuclei from simulated peripheral annihilations of antiprotons after capture on various target nuclei are reported. The initial annihilation process and the production of excited hypernuclei are estimated within the GiBUU transport framework, while their deexcitation process is treated with the ABLA++ code. The yield of excited hypernuclei range from $\sim$ 0.3% for $^{16}$O to $\sim$ 1.2% for $^{132}$Xe per annihilation, consistent with previous measurements at LEAR, CERN. The yield of specific ground state hypernuclei after deexcitation reaches up to a few 10$^{-4}$ per annihilation. The hypernuclei are produced in strangeness exchange reactions occuring between a nucleon of the target and the kaons originating from the annihilation in $\sim$ 80% of the cases, while the strangeness pair production in secondary pion-nucleon collision contributes to the remaining $\sim$ 20%. The simulations indicate that antiproton annihilations at rest on different nuclei could populate a wide range of so-far unexplored hypernuclei. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2402_01351 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Production of hypernuclei from antiproton capture within a relativistic transport model Schmidt, Alexander Gaitanos, Theodoros Obertelli, Alexandre Rodríguez-Sánchez, José-Luis Nuclear Theory Production yields of single-$Λ$ hypernuclei from simulated peripheral annihilations of antiprotons after capture on various target nuclei are reported. The initial annihilation process and the production of excited hypernuclei are estimated within the GiBUU transport framework, while their deexcitation process is treated with the ABLA++ code. The yield of excited hypernuclei range from $\sim$ 0.3% for $^{16}$O to $\sim$ 1.2% for $^{132}$Xe per annihilation, consistent with previous measurements at LEAR, CERN. The yield of specific ground state hypernuclei after deexcitation reaches up to a few 10$^{-4}$ per annihilation. The hypernuclei are produced in strangeness exchange reactions occuring between a nucleon of the target and the kaons originating from the annihilation in $\sim$ 80% of the cases, while the strangeness pair production in secondary pion-nucleon collision contributes to the remaining $\sim$ 20%. The simulations indicate that antiproton annihilations at rest on different nuclei could populate a wide range of so-far unexplored hypernuclei. |
| title | Production of hypernuclei from antiproton capture within a relativistic transport model |
| topic | Nuclear Theory |
| url | https://arxiv.org/abs/2402.01351 |