تقرير
Fine-tuning in scalar meson decay with bound-state corrections
| العنوان: | Fine-tuning in scalar meson decay with bound-state corrections |
|---|---|
| المؤلفون: | da Silva, M. L. L., da Silva, D. T., Vasconcellos, C. A. Z., Hadjimichef, D. |
| سنة النشر: | 2017 |
| المجموعة: | High Energy Physics - Phenomenology Nuclear Theory |
| مصطلحات موضوعية: | High Energy Physics - Phenomenology, Nuclear Theory |
| الوصف: | The glueball-quarkonia mixture decay amplitude has been evaluated, in the literature, by diagrammatic techniques for drawing quark lines and the quark-gluon vertex. In this paper we use an alternative approach which consists in a mapping technique, the Fock-Tani formalism, in order to obtain an effective Hamiltonian starting from microscopic interactions. An extra effect is present in this formalism associated to the extended nature of mesons: bound-state corrections, which introduces an additional decay amplitude and sets a fine-tuning procedure for general meson decay calculations. The $f_0(1500) \to \pi \pi$ channel shall be considered as numerical example of the procedure. Comment: 6 pages, 2 figures |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/1712.08503 |
| رقم الأكسشن: | edsarx.1712.08503 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |