Hai-Yang Cheng

activity

19942025

a_{1}

and

a_{2}

from

B \to ψ K (K^{*}), D (D^{*}) π (ρ)

Decays

29 citations · 29 across the 6 of their papers we have counts for

collaborators

6 papers

hep-ph2025

CP Violation in Hadronic Weak Decays of Charmed Baryons in the Topological Diagrammatic Approach

Hai-Yang Cheng, Fanrong Xu, Huiling Zhong

CP violation in the charmed baryon sector is generally expected to be very small, of order $1 0^{- 4}$ or even smaller. Nevertheless, large long-distance penguin topologies can be in…

hep-ph2024

Hadronic Weak Decays of Charmed Baryons in the Topological Diagrammatic Approach: An Update

Hai-Yang Cheng, Fanrong Xu, Huiling Zhong

There exist two distinct ways in realizing the approximate SU(3) flavor symmetry of QCD to describe the two-body nonleptonic decays of charmed baryons: the irreducible SU(3) approa…

hep-ph2024

Analysis of Hadronic Weak Decays of Charmed Baryons in the Topological Diagrammatic Approach

Huiling Zhong, Fanrong Xu, Hai-Yang Cheng

We perform a global fit to the experimental data of two-body charmed baryon decays based on the topological diagrammatic approach (TDA) and take into account the phase shifts betwe…

hep-ph2024

Topological Diagrams and Hadronic Weak Decays of Charmed Baryons

Huiling Zhong, Fanrong Xu, Hai-Yang Cheng

Inspired by the recent BESIII measurement of the decay asymmetry and the phase shift between $S$ - and $P$ -wave amplitudes in the decay $Λ_{c}^{+} \to Ξ^{0} K^{+}$ , we perform a global fit to…

hep-ph1994

The $Λ_{b} \to J / ψ + Λ$ Decay Revisited

Hai-Yang Cheng, B. Tseng

The $\b$ decay does not receive any nonspectator contributions and hence its theoretical calculation is relatively clean. Two different methods are employed for the study of $\b$.…

hep-ph1994★ 29 cited

Extraction of $a_{1}$ and $a_{2}$ from $B \to ψ K (K^{}), D (D^{}) π (ρ)$ Decays

Hai-Yang Cheng, B. Tseng

Based on the factorization approach, we show that the CLEO data for the ratio $Γ (B \to ψ K^{*}) /Γ (B \to ψ K)$ and the CDF measurement of the fraction of longitudinal polarization in $B\to…

CP Violation in Hadronic Weak Decays of Charmed Baryons in the Topological Diagrammatic Approach

Hadronic Weak Decays of Charmed Baryons in the Topological Diagrammatic Approach: An Update

Analysis of Hadronic Weak Decays of Charmed Baryons in the Topological Diagrammatic Approach

Topological Diagrams and Hadronic Weak Decays of Charmed Baryons

The Λb​→J/ψ+Λ Decay Revisited

Extraction of a1​ and a2​ from B→ψK(K∗), D(D∗)π(ρ) Decays

The $Λ_{b} \to J / ψ + Λ$ Decay Revisited

Extraction of $a_{1}$ and $a_{2}$ from $B \to ψ K (K^{}), D (D^{}) π (ρ)$ Decays