Chang Yang

collaborators

4 papers

hep-ph2025

Charmed baryon decays: $S U (3)_{F}$ breaking and CP violation

Chang Yang, Xiao-Gang He, Chia-Wei Liu

We present a comprehensive study of anti-triplet charmed baryon decays into octet baryons and pseudoscalar mesons using the $S U (3)_{F}$ flavor symmetry framework. By decomposing the…

hep-ph2025

Precise measurement of CP violating $τ$ EDM through $e^{+} e^{-} \to γ^{*}, ψ (2 s) \to τ^{+} τ^{-}$

Xiao-Gang He, Chia-Wei Liu, Jian-Ping Ma +2

A nonzero electric dipole moment of a tauon, $d_{τ}$ , signals CP violation and provides an important probe for new physics. We study methods to measure $d_{τ}$ at low energy $e^{+} e^{-}$ …

hep-ph2023

Complete determination of $S U (3)_{F}$ amplitudes and strong phase in $Λ_{c}^{+} \to Ξ^{0} K^{+}$

Chao-Qiang Geng, Xiao-Gang He, Xiang-Nan Jin +2

The BESIII collaboration has recently reported the first time measurement of the decay asymmetry $α (Λ_{c}^{+} \to Ξ^{0} K^{+}) = 0.01 \pm 0.16 (s t a t .) \pm 0.03 (sy s t .)$ and also a sizable ph…

hep-ph2023

Global analysis of measured and unmeasured hadronic two-body weak decays of antitriplet charmed baryons

Zhi-Peng Xing, Xiao-Gang He, Fei Huang +1

A large amount of data on hadronic two body weak decays of anti-triplet charmed baryons $T_{c 3 ˉ}$ to an octet baryon $T_{8}$ and an octet or singlet pseudoscalar meson $P$ , $T_{c…

Charmed baryon decays: SU(3)F​ breaking and CP violation

Precise measurement of CP violating τ EDM through e+e−→γ∗,ψ(2s)→τ+τ−

Complete determination of SU(3)F​ amplitudes and strong phase in Λc+​→Ξ0K+

Global analysis of measured and unmeasured hadronic two-body weak decays of antitriplet charmed baryons

Charmed baryon decays: $S U (3)_{F}$ breaking and CP violation

Precise measurement of CP violating $τ$ EDM through $e^{+} e^{-} \to γ^{*}, ψ (2 s) \to τ^{+} τ^{-}$

Complete determination of $S U (3)_{F}$ amplitudes and strong phase in $Λ_{c}^{+} \to Ξ^{0} K^{+}$