تقرير
Ab-initio study of dibaryons with highest bottom number
| العنوان: | Ab-initio study of dibaryons with highest bottom number |
|---|---|
| المؤلفون: | Padmanath, M., Mathur, Nilmani, Chakraborty, Debsubhra |
| سنة النشر: | 2022 |
| المجموعة: | High Energy Physics - Lattice High Energy Physics - Phenomenology |
| مصطلحات موضوعية: | High Energy Physics - Lattice, High Energy Physics - Phenomenology |
| الوصف: | We present the first lattice study of dibaryons with highest bottom number. Utilizing a set of state-of-the-art lattice QCD ensembles and methodologies, we determine the ground state of dibaryon composed of two $\Omega_{bbb}$ baryons. We extract the related scattering amplitude in the $^1S_0$ channel and find a sub-threshold pole, which signifies an unambiguous evidence for a deeply bound $\Omega_{bbb}-\Omega_{bbb}$ dibaryon. The binding energy of such a state as dictated by this pole singularity is found to be -81($^{+14}_{-16}$) MeV. We quantify various systematic uncertainties involved in this determination, including those related to the excited state contamination and Coulomb repulsion between the bottom quarks. Comment: 7 pages, 4 figures, 2 tables, contribution for the 39th International Symposium on Lattice Field Theory, 8th-13th August, 2022, Bonn, Germany |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2210.13026 |
| رقم الأكسشن: | edsarx.2210.13026 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |