Kaiwen Chen

works on

angular distribution 1 form factors 1 helicity amplitudes 1 lambda_c baryon 1 semileptonic decays 1 strong phases 1

From the 1 of 3 linked papers with an AI index.

collaborators

3 papers

hep-ph2026

Unraveling weak radiative hyperon decays with broken flavor symmetry

Kaiwen Chen, Lin Qiu, Jin Sun +2

We present a broken $S U (3)$ flavor analysis of weak radiative decays of spin-1/2 hyperons, incorporating current-current and electromagnetic-penguin contributions as well as charge…

hep-ph2026

Angular distribution of $I^_{c}^{+} \to I^_{1405/1520}^{*} (\to I^£ I ¨ ) ℓ^{+} I^½_{ℓ}$ and implications for form factors

Kaiwen Chen, Zhi-Peng Xing, Xudong Yu +1

The paper derives the full four‑body angular distribution for the cascade semileptonic decay Λ_c^+ → Λ^*_{1405/1520}(→ Σπ) ℓ^+ ν_ℓ using helicity amplitudes, and shows how the resu…

hep-ph2025

Decoding spin-parity quantum numbers and decay widths of double $J / I ¨ $ exotic states

Kaiwen Chen, Feng-Xiao Liu, Qiang Zhao +3

We derive helicity amplitudes for the fully charmed tetraquark states decays into vector meson pair under two types of models, where the one is from quark model and the other one i…

Unraveling weak radiative hyperon decays with broken flavor symmetry

Angular distribution of I^c+​→I^1405/1520∗​(→I^£I¨)ℓ+I^½ℓ​ and implications for form factors

Decoding spin-parity quantum numbers and decay widths of double J/I¨ exotic states

Angular distribution of $I^_{c}^{+} \to I^_{1405/1520}^{*} (\to I^£ I ¨ ) ℓ^{+} I^½_{ℓ}$ and implications for form factors

Decoding spin-parity quantum numbers and decay widths of double $J / I ¨ $ exotic states