تقرير
Production of nuclei and hypernuclei in pion-induced reactions near threshold energies
| العنوان: | Production of nuclei and hypernuclei in pion-induced reactions near threshold energies |
|---|---|
| المؤلفون: | Kittiratpattana, Apiwit, Reichert, Tom, Buyukcizmeci, Nihal, Botvina, Alexander, Limphirat, Ayut, Herold, Christoph, Steinheimer, Jan, Bleicher, Marcus |
| المصدر: | Phys. Rev. C 109, 044913 (2024) |
| سنة النشر: | 2023 |
| المجموعة: | High Energy Physics - Phenomenology Nuclear Theory |
| مصطلحات موضوعية: | Nuclear Theory, High Energy Physics - Phenomenology |
| الوصف: | The Ultra-relativistic Quantum Molecular Dynamics model is employed to simulate $\pi^-+\mathrm{C}$ and $\pi^-+\mathrm{W}$ collisions at p$_\mathrm{lab}=1.7$ GeV motivated by the recent HADES results. By comparing the proton and $\Lambda$ transverse momentum spectra, it was observed that the data and transport model calculation show a good agreement, if cluster formation is included to obtain the free proton spectra. Predictions of light cluster ($d$, $t$, $^3$He, $^4$He, as well as ${}^{3}_\Lambda$H and $\Xi$N) multiplicities and spectra are made using a coalescence mechanism. The resulting multiplicities suggest that the pion beam experiment can produce a substantial amount of ${}^{3}_\Lambda$H, especially in $\pi^-+\mathrm{W}$ collisions due to the stopping of the $\Lambda$ inside the large tungsten nucleus. The findings are supplemented by a statistical multi-fragmentation analysis suggesting that even larger hyper-fragments are produced copiously. It is suggested that even double strange hypernuclei are in reach and might be studied in more detail using a slightly higher pion beam momentum. Comment: 9 pages, 10 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevC.109.044913 |
| URL الوصول: | http://arxiv.org/abs/2305.09208 |
| رقم الأكسشن: | edsarx.2305.09208 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevC.109.044913 |
|---|