تقرير
The single parton fragmentation functions of heavy quarkonium in soft gluon factorization
| العنوان: | The single parton fragmentation functions of heavy quarkonium in soft gluon factorization |
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| المؤلفون: | Jia, Qi-Lin, Chen, An-Ping, Xu, Yuan-Guo |
| سنة النشر: | 2024 |
| المجموعة: | High Energy Physics - Phenomenology |
| مصطلحات موضوعية: | High Energy Physics - Phenomenology |
| الوصف: | We study the single parton fragmentation functions (FFs) at the input factorization scale $\mu_0\gtrsim 2m_Q$, with heavy quark mass $m_Q$, in the soft gluon factorization (SGF) approach. We express the FFs in terms of perturbatively calculable short distance hard parts for producing a heavy quark-antiquark pair in all possible states, convoluted with corresponding soft gluon distribution for the hadronization of the pair to a heavy quarkonium. We compute the perturbative short distance hard parts for producing a heavy quark pair in all possible $S$-wave and $P$-wave states up to $O(\alpha_s^2)$. With our results, the SGF can be further used to study the heavy quarkonium production at the hadron colliders and heavy quarkonium production within a jet. Comment: 19 pages, 0 figures. arXiv admin note: text overlap with arXiv:2304.04552 |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2402.04709 |
| رقم الأكسشن: | edsarx.2402.04709 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |