Strong decays of heavy tensor mesons in QCD sum rules
| العنوان: | Strong decays of heavy tensor mesons in QCD sum rules |
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| المؤلفون: | Zhen-Yu Li, Guo-Liang Yu, Zhi-Gang Wang |
| المصدر: | Modern Physics Letters A. 31:1650036 |
| بيانات النشر: | World Scientific Pub Co Pte Lt, 2016. |
| سنة النشر: | 2016 |
| مصطلحات موضوعية: | Physics, Coupling constant, Nuclear and High Energy Physics, QCD sum rules, Particle physics, Meson, 010308 nuclear & particles physics, Computer Science::Information Retrieval, Hadron, Astrophysics::Instrumentation and Methods for Astrophysics, General Physics and Astronomy, Computer Science::Computation and Language (Computational Linguistics and Natural Language and Speech Processing), Astronomy and Astrophysics, Type (model theory), 01 natural sciences, 0103 physical sciences, Computer Science::General Literature, Tensor, 010306 general physics |
| الوصف: | In this paper, the tensor–vector–pseudoscalar (TVP) type of vertices are analyzed with the QCD sum rules (QCDSR) and the local-QCD sum rules (SR) in the leading-order approximation and the hadronic coupling constants [Formula: see text], [Formula: see text], [Formula: see text] and [Formula: see text] together with the corresponding decay widths are then calculated. The results indicate that QCDSR as well as the local-QCDSR give a consistent description. The calculated strong decay widths and decay width ratios are compared with the available experimental and other theoretical values. Finally, the total widths [Formula: see text], [Formula: see text], [Formula: see text] and [Formula: see text] are discussed in detail. The results show that these total widths are underestimated, especially for the tensor [Formula: see text] and [Formula: see text] mesons where the obtained predictions are almost a factor of 2 lower than measured decay widths. |
| تدمد: | 1793-6632 0217-7323 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_________::3fafed67a53afc82a0e52d04cd5dba92Test https://doi.org/10.1142/s021773231650036xTest |
| حقوق: | OPEN |
| رقم الانضمام: | edsair.doi...........3fafed67a53afc82a0e52d04cd5dba92 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 17936632 02177323 |
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