Academic Journal
Non-perturbative effects for the isoscalar light vector ω-meson in charmed meson semileptonic decays.
| Title: | Non-perturbative effects for the isoscalar light vector ω-meson in charmed meson semileptonic decays. |
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| Authors: | Yang, Yin-Long1 (AUTHOR), Peng, Fang-Ping1 (AUTHOR), Yang, Yan-Ting1 (AUTHOR), Fu, Hai-Bing1 (AUTHOR), Wang, Sheng-Quan1 (AUTHOR) sqwang@alu.cqu.edu.cn |
| Source: | European Physical Journal C -- Particles & Fields. Aug2026, Vol. 86 Issue 8, p1-15. 15p. |
| Subject Terms: | *Vector mesons, *Branching ratios, *Mesons, *Quantum chromodynamics, *Hadron decay |
| Abstract: | Motivated by the renewed attention from the recent BESIII experiment on the semileptonic decay D → V ℓ ν ℓ (where V denotes a vector meson), we investigate semileptonic decay D + → ω ℓ + ν ℓ within the framework of QCD light-cone sum rule in this work. By constructing correlation function with right-handed chiral current, the transverse twist-2 light-cone distribution amplitudes (LCDA) ϕ 2 ; ω ⊥ (x , μ) dominates the contribution in TFFs. We study the properties of twist-2 LCDA ϕ 2 ; ω ⊥ (x , μ) through light-cone harmonic oscillator model. Applying it to the TFFs, we obtained A 1 (0) = 0. 537 - 0.053 + 0.053 , A 2 (0) = 0. 540 - 0.068 + 0.068 , V (0) = 0. 754 - 0.079 + 0.079 , and A 0 (0) = 0. 553 - 0.043 + 0.044 at large recoil point. Two TFF ratios are r V = 1. 40 - 0.19 + 0.21 and r 2 = 1. 01 - 0.16 + 0.17 . After extrapolating these TFFs to the whole physical q 2 region via simplified z (q 2 , t) series expansion, the ratio of longitudinal and transverse decay widths is Γ L / Γ T = 0. 987 - 0.121 + 0.107 . Then, we get branching fraction B (D + → ω e + ν e) = (1. 848 - 0.330 + 0.365) × 10 - 3 and B (D + → ω μ + ν μ) = (1. 782 - 0.303 + 0.334) × 10 - 3 , which is in good agreement with BESIII and CLEO Collaborations. Taking into account the secondary decay ω → π + π - π 0 , we predict branching fraction of five body decay as B (D + → ω (→ π + π - π 0) e + ν e) = (1. 648 - 0.305 + 0.341) × 10 - 3 and B (D + → ω (→ π + π - π 0) μ + ν μ) = (1. 589 - 0.281 + 0.313) × 10 - 3 . Finally, we predict the forward-backward asymmetry A FB ℓ , lepton-side convexity parameter C F ℓ , longitudinal (transverse) polarization P L (T) ℓ , as well as longitudinal polarization fraction F L ℓ . [ABSTRACT FROM AUTHOR] |
| Database: | Academic Search Index |
| FullText | Text: Availability: 0 CustomLinks: – Url: https://dx.doi.org/doi:10.1140/epjc/s10052-026-16231-9 Name: EDS - Springer Nature Journals (s7799221) Category: fullText Text: View record at Springer – Url: https://resolver.ebsco.com/c/fiv2js/result?sid=EBSCO:asx&genre=article&issn=14346044&ISBN=&volume=86&issue=8&date=20260801&spage=1&pages=1-15&title=European Physical Journal C -- Particles & Fields&atitle=Non-perturbative%20effects%20for%20the%20isoscalar%20light%20vector%20%CF%89-meson%20in%20charmed%20meson%20semileptonic%20decays.&aulast=Yang%2C%20Yin-Long&id=DOI:10.1140/epjc/s10052-026-16231-9 Name: Full Text Finder (for New FTF UI) (ns324271) Category: fullText Text: Full Text Finder MouseOverText: Full Text Finder |
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| Header | DbId: asx DbLabel: Academic Search Index An: 197050230 RelevancyScore: 1452 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 1452.42456054688 |
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| Items | – Name: Title Label: Title Group: Ti Data: Non-perturbative effects for the isoscalar light vector ω-meson in charmed meson semileptonic decays. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Yang%2C+Yin-Long%22">Yang, Yin-Long</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Peng%2C+Fang-Ping%22">Peng, Fang-Ping</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yang%2C+Yan-Ting%22">Yang, Yan-Ting</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Fu%2C+Hai-Bing%22">Fu, Hai-Bing</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Sheng-Quan%22">Wang, Sheng-Quan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> sqwang@alu.cqu.edu.cn</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22European+Physical+Journal+C+--+Particles+%26+Fields%22">European Physical Journal C -- Particles & Fields</searchLink>. Aug2026, Vol. 86 Issue 8, p1-15. 15p. – Name: Subject Label: Subject Terms Group: Su Data: *<searchLink fieldCode="DE" term="%22Vector+mesons%22">Vector mesons</searchLink><br />*<searchLink fieldCode="DE" term="%22Branching+ratios%22">Branching ratios</searchLink><br />*<searchLink fieldCode="DE" term="%22Mesons%22">Mesons</searchLink><br />*<searchLink fieldCode="DE" term="%22Quantum+chromodynamics%22">Quantum chromodynamics</searchLink><br />*<searchLink fieldCode="DE" term="%22Hadron+decay%22">Hadron decay</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Motivated by the renewed attention from the recent BESIII experiment on the semileptonic decay D → V ℓ ν ℓ (where V denotes a vector meson), we investigate semileptonic decay D + → ω ℓ + ν ℓ within the framework of QCD light-cone sum rule in this work. By constructing correlation function with right-handed chiral current, the transverse twist-2 light-cone distribution amplitudes (LCDA) ϕ 2 ; ω ⊥ (x , μ) dominates the contribution in TFFs. We study the properties of twist-2 LCDA ϕ 2 ; ω ⊥ (x , μ) through light-cone harmonic oscillator model. Applying it to the TFFs, we obtained A 1 (0) = 0. 537 - 0.053 + 0.053 , A 2 (0) = 0. 540 - 0.068 + 0.068 , V (0) = 0. 754 - 0.079 + 0.079 , and A 0 (0) = 0. 553 - 0.043 + 0.044 at large recoil point. Two TFF ratios are r V = 1. 40 - 0.19 + 0.21 and r 2 = 1. 01 - 0.16 + 0.17 . After extrapolating these TFFs to the whole physical q 2 region via simplified z (q 2 , t) series expansion, the ratio of longitudinal and transverse decay widths is Γ L / Γ T = 0. 987 - 0.121 + 0.107 . Then, we get branching fraction B (D + → ω e + ν e) = (1. 848 - 0.330 + 0.365) × 10 - 3 and B (D + → ω μ + ν μ) = (1. 782 - 0.303 + 0.334) × 10 - 3 , which is in good agreement with BESIII and CLEO Collaborations. Taking into account the secondary decay ω → π + π - π 0 , we predict branching fraction of five body decay as B (D + → ω (→ π + π - π 0) e + ν e) = (1. 648 - 0.305 + 0.341) × 10 - 3 and B (D + → ω (→ π + π - π 0) μ + ν μ) = (1. 589 - 0.281 + 0.313) × 10 - 3 . Finally, we predict the forward-backward asymmetry A FB ℓ , lepton-side convexity parameter C F ℓ , longitudinal (transverse) polarization P L (T) ℓ , as well as longitudinal polarization fraction F L ℓ . [ABSTRACT FROM AUTHOR] |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1140/epjc/s10052-026-16231-9 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 15 StartPage: 1 Subjects: – SubjectFull: Vector mesons Type: general – SubjectFull: Branching ratios Type: general – SubjectFull: Mesons Type: general – SubjectFull: Quantum chromodynamics Type: general – SubjectFull: Hadron decay Type: general Titles: – TitleFull: Non-perturbative effects for the isoscalar light vector ω-meson in charmed meson semileptonic decays. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Yang, Yin-Long – PersonEntity: Name: NameFull: Peng, Fang-Ping – PersonEntity: Name: NameFull: Yang, Yan-Ting – PersonEntity: Name: NameFull: Fu, Hai-Bing – PersonEntity: Name: NameFull: Wang, Sheng-Quan IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 08 Text: Aug2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 14346044 Numbering: – Type: volume Value: 86 – Type: issue Value: 8 Titles: – TitleFull: European Physical Journal C -- Particles & Fields Type: main |
| ResultId | 1 |