Revisiting $$B\rightarrow K^*\pi $$ B → K ∗ π and $$B\rightarrow K\rho $$ B → K ρ decays using the modified perturbative QCD approach
Abstract We revisit $$B\rightarrow K^*\pi $$ B → K ∗ π and $$B\rightarrow K\rho $$ B → K ρ decay processes using the modified perturbative QCD approach, which is developed based on the perturbative QCD approach with a few improvements. A critical infrared cutoff scale $$\mu _c$$ μ c is introduced to...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2025-02-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | https://doi.org/10.1140/epjc/s10052-025-13840-8 |
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| author | Ru-Xuan Wang Mao-Zhi Yang |
| author_facet | Ru-Xuan Wang Mao-Zhi Yang |
| author_sort | Ru-Xuan Wang |
| collection | DOAJ |
| description | Abstract We revisit $$B\rightarrow K^*\pi $$ B → K ∗ π and $$B\rightarrow K\rho $$ B → K ρ decay processes using the modified perturbative QCD approach, which is developed based on the perturbative QCD approach with a few improvements. A critical infrared cutoff scale $$\mu _c$$ μ c is introduced to separate hard and soft contributions in the decay process. Hard contributions with scale $$\mu $$ μ larger than $$\mu _c$$ μ c are calculated with perturbative QCD, and soft contributions with $$\mu <\mu _c$$ μ < μ c are described in terms of soft transition and production form factors. In addition, color-octet contributions are considered phenomenologically. The branching fractions and CP violations of $$B\rightarrow K^*\pi $$ B → K ∗ π , $$K\rho $$ K ρ decays are calculated. With appropriate parameter inputs, the theoretical results can be in good agreement with experimental data. |
| format | Article |
| id | doaj-art-672e1d3d12f64901afbe255312ce069f |
| institution | Kabale University |
| issn | 1434-6052 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj-art-672e1d3d12f64901afbe255312ce069f2025-02-09T12:51:47ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60522025-02-0185211510.1140/epjc/s10052-025-13840-8Revisiting $$B\rightarrow K^*\pi $$ B → K ∗ π and $$B\rightarrow K\rho $$ B → K ρ decays using the modified perturbative QCD approachRu-Xuan Wang0Mao-Zhi Yang1School of Physics, Nankai UniversitySchool of Physics, Nankai UniversityAbstract We revisit $$B\rightarrow K^*\pi $$ B → K ∗ π and $$B\rightarrow K\rho $$ B → K ρ decay processes using the modified perturbative QCD approach, which is developed based on the perturbative QCD approach with a few improvements. A critical infrared cutoff scale $$\mu _c$$ μ c is introduced to separate hard and soft contributions in the decay process. Hard contributions with scale $$\mu $$ μ larger than $$\mu _c$$ μ c are calculated with perturbative QCD, and soft contributions with $$\mu <\mu _c$$ μ < μ c are described in terms of soft transition and production form factors. In addition, color-octet contributions are considered phenomenologically. The branching fractions and CP violations of $$B\rightarrow K^*\pi $$ B → K ∗ π , $$K\rho $$ K ρ decays are calculated. With appropriate parameter inputs, the theoretical results can be in good agreement with experimental data.https://doi.org/10.1140/epjc/s10052-025-13840-8 |
| spellingShingle | Ru-Xuan Wang Mao-Zhi Yang Revisiting $$B\rightarrow K^*\pi $$ B → K ∗ π and $$B\rightarrow K\rho $$ B → K ρ decays using the modified perturbative QCD approach European Physical Journal C: Particles and Fields |
| title | Revisiting $$B\rightarrow K^*\pi $$ B → K ∗ π and $$B\rightarrow K\rho $$ B → K ρ decays using the modified perturbative QCD approach |
| title_full | Revisiting $$B\rightarrow K^*\pi $$ B → K ∗ π and $$B\rightarrow K\rho $$ B → K ρ decays using the modified perturbative QCD approach |
| title_fullStr | Revisiting $$B\rightarrow K^*\pi $$ B → K ∗ π and $$B\rightarrow K\rho $$ B → K ρ decays using the modified perturbative QCD approach |
| title_full_unstemmed | Revisiting $$B\rightarrow K^*\pi $$ B → K ∗ π and $$B\rightarrow K\rho $$ B → K ρ decays using the modified perturbative QCD approach |
| title_short | Revisiting $$B\rightarrow K^*\pi $$ B → K ∗ π and $$B\rightarrow K\rho $$ B → K ρ decays using the modified perturbative QCD approach |
| title_sort | revisiting b rightarrow k pi b k ∗ π and b rightarrow k rho b k ρ decays using the modified perturbative qcd approach |
| url | https://doi.org/10.1140/epjc/s10052-025-13840-8 |
| work_keys_str_mv | AT ruxuanwang revisitingbrightarrowkpibkpandbrightarrowkrhobkrdecaysusingthemodifiedperturbativeqcdapproach AT maozhiyang revisitingbrightarrowkpibkpandbrightarrowkrhobkrdecaysusingthemodifiedperturbativeqcdapproach |