Xiangyu Jin

activity

20242026

collaborators

5 papers

hep-ph2026

The Negative- $I^£ I^ˉ £$ Angular-Parameter Puzzle in $J / I ¨ $ and $I ¨ (2 S)$ Decays

Chao-Qiang Geng, Xiang-Nan Jin, Chia-Wei Liu

Experimental measurements of $J / I ¨ $ and $I ¨ (2 S)$ decays to octet baryon pairs reveal a negative- $I^£ I^ˉ £$ puzzle in the angular distributions: $I^\pm_{I^} £^{J / I ¨ } < 0$ , whereas the other…

hep-ph2026

Strange Quark Electric Dipole Moment withTopological Anomalies

Chao-Qiang Geng, Xiang-Nan Jin, Chia-Wei Liu +1

We introduce an anomaly-based framework to probe quark electric dipole moments in exclusive hadronic final states produced in $e^{+} e^{-}$ annihilation. Chern-Simons-induced anomalous…

hep-ph2025

Potential of discovering $I^_{cc}^{+}$ in $I^_{b}$ decays

Chao-Qiang Geng, Xiang-Nan Jin, Chia-Wei Liu +2

We propose to search for $I^_{cc}^{+}$ in the decay $I^_{b} \to I^_{cc}^{+} D^{-}$ , which serves as a tagged and reconstructible source of $I^_{cc}^{+}$ , providing an experimentally clean en…

hep-ph2025

Large CP Asymmetries from Final-State Interactions in Charmful Baryonic Decays of $B^{0} \to I^_{c}^{+} I^_{c}^{-}$ and $B_{s}^{0} \to I^_{c}^{+} I^_{c}^{-}$

Chao-Qiang Geng, Xiang-Nan Jin, Chia-Wei Liu

We study the direct CP asymmetries in the decays of $B^{0} \to I^_{c}^{+} I^_{c}^{-}$ and $B_{s}^{0} \to I^_{c}^{+} I^_{c}^{-}$ , emphasizing the critical role of final-state interactio…

hep-ph2024

Hidden strangeness in meson weak decays to baryon pair

Chao-Qiang Geng, Xiang-Nan Jin, Chia-Wei Liu +1

Our study focuses on the weak decay of $D_{s}^{+} \to p n$ , which is the only possible two-body baryonic decay in the $D$ meson system. An analysis using perturbative qu…

The Negative-I^£I^ˉ£ Angular-Parameter Puzzle in J/I¨ and I¨(2S) Decays

Strange Quark Electric Dipole Moment withTopological Anomalies

Potential of discovering I^cc+​ in I^b​ decays

Large CP Asymmetries from Final-State Interactions in Charmful Baryonic Decays of B0→I^c+​I^c−​ and Bs0​→I^c+​I^c−​

Hidden strangeness in meson weak decays to baryon pair

The Negative- $I^£ I^ˉ £$ Angular-Parameter Puzzle in $J / I ¨ $ and $I ¨ (2 S)$ Decays

Potential of discovering $I^_{cc}^{+}$ in $I^_{b}$ decays

Large CP Asymmetries from Final-State Interactions in Charmful Baryonic Decays of $B^{0} \to I^_{c}^{+} I^_{c}^{-}$ and $B_{s}^{0} \to I^_{c}^{+} I^_{c}^{-}$