Systematic analysis of the form factors of Bc → ηc, J/ψ and corresponding weak decays
The form factors of Bc→ηc and Bc→J/ψ are analyzed in the framework of three-point QCD sum rules. In the calculations, the contributions of the vacuum condensate terms 〈gs2GG〉 and 〈gs3GGGf〉 are considered. In addition, the decay widths and branching ratios of several decay channels are predicted by u...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-12-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269324006762 |
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| author | Bin Wu Guo-Liang Yu Jie Lu Zhi-Gang Wang |
| author_facet | Bin Wu Guo-Liang Yu Jie Lu Zhi-Gang Wang |
| author_sort | Bin Wu |
| collection | DOAJ |
| description | The form factors of Bc→ηc and Bc→J/ψ are analyzed in the framework of three-point QCD sum rules. In the calculations, the contributions of the vacuum condensate terms 〈gs2GG〉 and 〈gs3GGGf〉 are considered. In addition, the decay widths and branching ratios of several decay channels are predicted by using the calculated form factors. These decay processes include the nonleptonic decays Bc−→ηcπ−, ηcK−, ηcρ−, ηcK⁎−, J/ψπ−, J/ψK−, J/ψρ−, J/ψK⁎−, and the semileptonic decays Bc−→ηclν¯, J/ψlν¯. These results about the form factors and decay properties of Bc meson provide useful information for us to study the heavy-quark dynamics and find new physics beyond Standard Model. |
| format | Article |
| id | doaj-art-5ff210c428d340e5aed5dac4835a4211 |
| institution | OA Journals |
| issn | 0370-2693 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj-art-5ff210c428d340e5aed5dac4835a42112025-08-20T02:07:34ZengElsevierPhysics Letters B0370-26932024-12-0185913911810.1016/j.physletb.2024.139118Systematic analysis of the form factors of Bc → ηc, J/ψ and corresponding weak decaysBin Wu0Guo-Liang Yu1Jie Lu2Zhi-Gang Wang3Department of Mathematics and Physics, North China Electric Power University, Baoding 071003, People's Republic of ChinaDepartment of Mathematics and Physics, North China Electric Power University, Baoding 071003, People's Republic of China; Hebei Key Laboratory of Physics and Energy Technology, North China Electric Power University, Baoding 071000, China; Corresponding author.School of Physics, Southeast University, Nanjing 210094, People's Republic of ChinaDepartment of Mathematics and Physics, North China Electric Power University, Baoding 071003, People's Republic of ChinaThe form factors of Bc→ηc and Bc→J/ψ are analyzed in the framework of three-point QCD sum rules. In the calculations, the contributions of the vacuum condensate terms 〈gs2GG〉 and 〈gs3GGGf〉 are considered. In addition, the decay widths and branching ratios of several decay channels are predicted by using the calculated form factors. These decay processes include the nonleptonic decays Bc−→ηcπ−, ηcK−, ηcρ−, ηcK⁎−, J/ψπ−, J/ψK−, J/ψρ−, J/ψK⁎−, and the semileptonic decays Bc−→ηclν¯, J/ψlν¯. These results about the form factors and decay properties of Bc meson provide useful information for us to study the heavy-quark dynamics and find new physics beyond Standard Model.http://www.sciencedirect.com/science/article/pii/S0370269324006762 |
| spellingShingle | Bin Wu Guo-Liang Yu Jie Lu Zhi-Gang Wang Systematic analysis of the form factors of Bc → ηc, J/ψ and corresponding weak decays Physics Letters B |
| title | Systematic analysis of the form factors of Bc → ηc, J/ψ and corresponding weak decays |
| title_full | Systematic analysis of the form factors of Bc → ηc, J/ψ and corresponding weak decays |
| title_fullStr | Systematic analysis of the form factors of Bc → ηc, J/ψ and corresponding weak decays |
| title_full_unstemmed | Systematic analysis of the form factors of Bc → ηc, J/ψ and corresponding weak decays |
| title_short | Systematic analysis of the form factors of Bc → ηc, J/ψ and corresponding weak decays |
| title_sort | systematic analysis of the form factors of bc ηc j ψ and corresponding weak decays |
| url | http://www.sciencedirect.com/science/article/pii/S0370269324006762 |
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