Quark-hadron duality violations and higher-order 1/m b corrections in inclusive semileptonic B decays
Abstract The theoretical description and data for inclusive semileptonic B decays have reached incredible precision. This motivated us to re-animate the discussion of possible Quark-Hadron Duality violations. There seems that there is currently no evidence of a failure of the Heavy Quark Expansion (...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2024-10-01
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| Series: | Journal of High Energy Physics |
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| Online Access: | https://doi.org/10.1007/JHEP10(2024)158 |
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| author | Thomas Mannel Ilija S. Milutin Rens Verkade K. Keri Vos |
| author_facet | Thomas Mannel Ilija S. Milutin Rens Verkade K. Keri Vos |
| author_sort | Thomas Mannel |
| collection | DOAJ |
| description | Abstract The theoretical description and data for inclusive semileptonic B decays have reached incredible precision. This motivated us to re-animate the discussion of possible Quark-Hadron Duality violations. There seems that there is currently no evidence of a failure of the Heavy Quark Expansion (HQE) used to compute observables for these decays. However, we might arrive at a point where an asymptotic behaviour of the HQE would limit a further increase of precision. We discuss this possibility and suggest a simple model, which can be used to study the effects of higher orders in the 1/m b expansion and possible quark-hadron duality violations. We devise observables sensitive only to such higher-order effects to test the behaviour of the HQE. Using these observables we obtain a first estimate of possible quark-hadron duality violations using the measured q 2 moments. |
| format | Article |
| id | doaj-art-498c3aca115745f58df57b4eaeada2b2 |
| institution | OA Journals |
| issn | 1029-8479 |
| language | English |
| publishDate | 2024-10-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj-art-498c3aca115745f58df57b4eaeada2b22025-08-20T02:31:04ZengSpringerOpenJournal of High Energy Physics1029-84792024-10-0120241012410.1007/JHEP10(2024)158Quark-hadron duality violations and higher-order 1/m b corrections in inclusive semileptonic B decaysThomas Mannel0Ilija S. Milutin1Rens Verkade2K. Keri Vos3Theoretische Physik 1, Naturwiss. techn. Fakultät, Universität SiegenTheoretische Physik 1, Naturwiss. techn. Fakultät, Universität SiegenGravitational Waves and Fundamental Physics (GWFP), Maastricht UniversityGravitational Waves and Fundamental Physics (GWFP), Maastricht UniversityAbstract The theoretical description and data for inclusive semileptonic B decays have reached incredible precision. This motivated us to re-animate the discussion of possible Quark-Hadron Duality violations. There seems that there is currently no evidence of a failure of the Heavy Quark Expansion (HQE) used to compute observables for these decays. However, we might arrive at a point where an asymptotic behaviour of the HQE would limit a further increase of precision. We discuss this possibility and suggest a simple model, which can be used to study the effects of higher orders in the 1/m b expansion and possible quark-hadron duality violations. We devise observables sensitive only to such higher-order effects to test the behaviour of the HQE. Using these observables we obtain a first estimate of possible quark-hadron duality violations using the measured q 2 moments.https://doi.org/10.1007/JHEP10(2024)158Bottom QuarksCKM ParametersSemi-Leptonic Decays |
| spellingShingle | Thomas Mannel Ilija S. Milutin Rens Verkade K. Keri Vos Quark-hadron duality violations and higher-order 1/m b corrections in inclusive semileptonic B decays Journal of High Energy Physics Bottom Quarks CKM Parameters Semi-Leptonic Decays |
| title | Quark-hadron duality violations and higher-order 1/m b corrections in inclusive semileptonic B decays |
| title_full | Quark-hadron duality violations and higher-order 1/m b corrections in inclusive semileptonic B decays |
| title_fullStr | Quark-hadron duality violations and higher-order 1/m b corrections in inclusive semileptonic B decays |
| title_full_unstemmed | Quark-hadron duality violations and higher-order 1/m b corrections in inclusive semileptonic B decays |
| title_short | Quark-hadron duality violations and higher-order 1/m b corrections in inclusive semileptonic B decays |
| title_sort | quark hadron duality violations and higher order 1 m b corrections in inclusive semileptonic b decays |
| topic | Bottom Quarks CKM Parameters Semi-Leptonic Decays |
| url | https://doi.org/10.1007/JHEP10(2024)158 |
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