تقرير
Neutral baryonic systems with strangeness
| العنوان: | Neutral baryonic systems with strangeness |
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| المؤلفون: | Garcilazo, H., Valcarce, A., Vijande, J. |
| المصدر: | International Journal of Modern Physics E 29 (2020) 1930009 |
| سنة النشر: | 2020 |
| المجموعة: | High Energy Physics - Phenomenology Nuclear Theory |
| مصطلحات موضوعية: | Nuclear Theory, High Energy Physics - Phenomenology |
| الوصف: | We review the status as regards the existence of three- and four-body bound states made of neutrons and $\Lambda$ hyperons. For interesting cases, the coupling to neutral baryonic systems made of charged particles of different strangeness has been addressed. There are strong arguments showing that the $\Lambda nn$ system has no bound states. $\Lambda\Lambda nn$ strong stable states are not favored by our current knowledge of the strangeness $-1$ and $-2$ baryon-baryon interactions. However, a possible $\Xi^- t$ quasibound state decaying to $\Lambda\Lambda nn$ might exist in nature. Similarly, there is a broad agreement about the nonexistence of $\Lambda\Lambda n$ bound states. However, the coupling to $\Xi NN$ states opens the door to a resonance above the $\Lambda\Lambda n$ threshold. Comment: Invited Review. 22 pages. arXiv admin note: text overlap with arXiv:1911.07194" |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1142/S0218301319300091 |
| URL الوصول: | http://arxiv.org/abs/2002.12365 |
| رقم الأكسشن: | edsarx.2002.12365 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1142/S0218301319300091 |
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