Long Zeng

activity

20182026

most citedThe

D \to ρ

semileptonic and radiative decays within the light-cone sum rules

19 citations · 86 across the 14 of their papers we have counts for

collaborators

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14 papers · 1 filter

hep-ph2026

Addressing the lightest $S$ -wave strange $K_{0}^{*} (700) / κ$ resonance in four-body semileptonic $B ˉ_{s}^{0} \to K^{0} π^{+} ℓ^{-} ν ˉ_{ℓ}$ decays

Dong Huang, Sheng-Bo Wu, Fang-Ping Peng +2

As the lightest strange scalar resonance, $K_{0}^{*} (700)$ (also called $κ$ ) has a large width and resides close to the $K π$ threshold, leading to a longstanding debate about its inter…

hep-ph2026

Probing the equivalence of chiral LCSRs in $D \to π e ν_{e}$ decays and extraction of $∣ V_{c d} ∣$

Xiu-Fen Wang, Hai-Jiang Tian, Yin-Long Yang +2

In the paper, we have carried out research on the $D \to π$ decay process. We employ two different currents to study the $D \to π$ transition form factors (TFFs) by using the light-con…

hep-ph2025

$η$ - $η^{'}$ mixing and its application in the $B^{+} / D^{+} / D_{s}^{+} \to η^{(')} ℓ^{+} ν_{ℓ}$ decays

Yu-Jie Zhang, Xing-Gang Wu, Dan-Dan Hu +1

In this paper, we take into account the intrinsic charm and gluonic contents into the $η - η^{'}$ mixing scheme and formulate the tetramixing $η - η^{'} - G - η_{c}$ to study the mixin…

hep-ph2025

$η_{c}$ leading-twist distribution amplitude and the $B_{c} \to η_{c} ℓ ν ˉ_{ℓ}$ semileptonic decays using QCD Sum Rules

Long Zeng, Xing-Gang Wu, Dan-Dan Hu +3

In this paper, we investigate the semileptonic decays $B_{c} \to η_{c} ℓ ν ˉ_{ℓ}$ using the quantum chromodynamics(QCD) sum rules within the framework of Standard Model (SM). We fu…

hep-ph2025★ 2 cited

Longitudinal leading-twist distribution amplitude of the $^{1} P_{1}$ -state $b_{1} (1235)$ meson and its implications on $B \to b_{1} (1235) ℓ^{+} ν_{ℓ}$ decays

Long Zeng, Xing-Gang Wu, Dan-Dan Hu +2

In the paper, we derive the $ξ$ -moments $⟨ ξ_{2; b_{1}}^{n; ∥} ⟩$ of the longitudinal leading-twist distribution amplitude $ϕ_{2; b_{1}}^{∥}$ for $^{1} P_{1}$ -state $b_{1} (1235)$ -mes…

hep-ph2024

An improved light-cone harmonic oscillator model for the $ϕ$ -meson longitudinal leading-twist light-cone distribution amplitude

Dan-Dan Hu, Xing-Gang Wu, Long Zeng +2

In the present paper, we study the properties of $ϕ$ -meson longitudinal leading-twist light-cone distribution amplitude $ϕ_{2; ϕ}^{∥} (x, μ)$ by starting from a light-cone harmonic o…

hep-ph2023★ 10 cited

Properties of the $η_{q}$ leading-twist distribution amplitude and its effects to the $B / D^{+} \to η^{(')} ℓ^{+} ν_{ℓ}$ decays

Dan-Dan Hu, Xing-Gang Wu, Hai-Bing Fu +3

The $η^{(')}$ -mesons in the quark-flavor basis are mixtures of two mesonic states $∣ η_{q} ⟩ = ∣ u ˉ u + d ˉ d ⟩ / 2$ and $∣ η_{s} ⟩ = ∣ s ˉ s ⟩$ . In th…

hep-ph2022★ 8 cited

The ratio $R (D_{s})$ for $B_{s} \to D_{s} ℓ ν_{ℓ}$ by using the QCD light-cone sum rules within the framework of heavy quark effective field theory

Yi Zhang, Tao Zhong, Hai-Bing Fu +3

In the paper, we study the $B_{s} \to D_{s}$ transition form factors by using the light-cone sum rules within the framework of heavy quark effective field theory. We adopt a chiral curr…

hep-ph2021★ 7 cited

$B_{c} \to J / ψ$ helicity form factors and the $B_{c}^{+} \to J / ψ + (P, V, ℓ^{+} ν_{ℓ})$ decays

Wei Cheng, Yi Zhang, Long Zeng +2

In this paper, we calculate the $B_{c} \to J / ψ$ helicity form factors (HFFs) up to twist-4 accuracy by using the light-cone sum rules (LCSR) approach. After extrapolating those HFFs t…

hep-ph2021★ 6 cited

Revisiting the production of $J / ψ + η_{c}$ via the $e^{+} e^{-}$ annihilation within the QCD light-cone sum rules

Long Zeng, Hai-Bing Fu, Dan-Dan Hu +3

We make a detailed study on the typical production channel of double charmoniums, $e^{+} e^{-} \to J / ψ + η_{c}$ , at the center-of-mass collision energy $s = 10.58$ GeV. The key componen…

hep-ph2020★ 8 cited

Branching fractions and polarizations of $D \to V (ω, ρ, K^{*}) ℓ ν_{ℓ}$ within QCD LCSR

Hai-Bing Fu, Wei Cheng, Long Zeng +2

In this paper, we make a detailed study about the $D \to V$ helicity form factors (HFFs) within the framework of QCD light-cone sum rule (LCSR) up to twist-4 accuracy. After extrapo…

hep-ph2020★ 8 cited

$D \to P (π, K)$ helicity form factors within light-cone sum rule approach

Hai-Bing Fu, Wei Cheng, Rui-Yu Zhou +1

In this paper, the $D \to P (π, K)$ helicity form factors (HFFs) are studied by applying the QCD light-cone sum rule (LCSR) approach. The calculation accuracy is up to next-to-leadin…

hep-ph2018★ 19 cited

The $D \to ρ$ semileptonic and radiative decays within the light-cone sum rules

Hai-Bing Fu, Long Zeng, Rong Lü +2

The measured branching ratio of the $D$ meson semileptonic decay $D \to ρ e^{+} ν_{e}$ , which is based on the $0.82 f b^{- 1}$ CLEO data taken at the peak of $ψ (3770)$ resonance, di…

hep-ph2018★ 18 cited

The longitudinal leading-twist distribution amplitude of $J / ψ$ meson within background field theory

Hai-Bing Fu, Long Zeng, Wei Cheng +2

We make a detailed study on the $J / ψ$ meson longitudinal leading-twist distribution amplitude $ϕ_{2; J / ψ}^{∥}$ by using the QCD sum rules within the background field theory. By keepi…

Addressing the lightest S-wave strange K0∗​(700)/κ resonance in four-body semileptonic Bˉs0​→K0π+ℓ−νˉℓ​ decays

Probing the equivalence of chiral LCSRs in D→πeνe​ decays and extraction of ∣Vcd​∣

η-η′ mixing and its application in the B+/D+/Ds+​→η(′)ℓ+νℓ​ decays

ηc​ leading-twist distribution amplitude and the Bc​→ηc​ℓνˉℓ​ semileptonic decays using QCD Sum Rules

Longitudinal leading-twist distribution amplitude of the 1P1​-state b1​(1235) meson and its implications on B→b1​(1235)ℓ+νℓ​ decays

An improved light-cone harmonic oscillator model for the ϕ-meson longitudinal leading-twist light-cone distribution amplitude

Properties of the ηq​ leading-twist distribution amplitude and its effects to the B/D+→η(′)ℓ+νℓ​ decays

The ratio R(Ds​) for Bs​→Ds​ℓνℓ​ by using the QCD light-cone sum rules within the framework of heavy quark effective field theory

Bc​→J/ψ helicity form factors and the Bc+​→J/ψ+(P,V,ℓ+νℓ​) decays

Revisiting the production of J/ψ+ηc​ via the e+e− annihilation within the QCD light-cone sum rules

Branching fractions and polarizations of D→V(ω,ρ,K∗)ℓνℓ​ within QCD LCSR

D→P(π,K) helicity form factors within light-cone sum rule approach

The D→ρ semileptonic and radiative decays within the light-cone sum rules

The longitudinal leading-twist distribution amplitude of J/ψ meson within background field theory