X. Hao

collaborators

8 papers

hep-ph2026

Determining the Spin Density Matrix via Its Rank and Probing the Quantum Entanglement and Bell Non-Locality at the Lepton Colliders

Liwei Liu, Xiqing Hao, Dianwei Wang +2

Considering two-fermion $F_{a} F_{b}$ productions and decays via one scalar or photon exchange at the $e^{+} e^{-}$ collider, we show that the rank $r_{ρ}$ of spin density matrix $ρ$ is equal…

hep-ph2026

Determining the Spin-Analyzing Powers via Invariants of the Spin Correlation Matrices and Probing the Bell Non-Locality at the Lepton Colliders

Dianwei Wang, Xiqing Hao, Liwei Liu +2

We consider the two-fermion $F_{a} F_{b}$ productions and decays via one mediator exchange at the $e^{+} e^{-}$ collider. With the assumption that the spin is defined via the Lorentz symmet…

hep-ex2026

Study of $ϕ \to K K ˉ$ in the amplitude analysis of $D^{+} \to K_{S}^{0} K_{L}^{0} π^{+}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +772

We present the first amplitude analysis and branching fraction measurement of $D^{+} \to K_{S}^{0} K_{L}^{0} π^{+}$ decay. The analysis uses a dataset corresponding to an int…

hep-ex2026

Measurement of branching fractions of $D_{s}^{+} \to K_{S}^{0} K_{S}^{0} π^{+} π^{0}$ and $D_{s}^{+} \to K_{S}^{0} K^{+} π^{0} π^{0}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +683

By analyzing $e^{+} e^{-}$ collision data corresponding to an integrated luminosity of 7.33~fb $^{- 1}$ collected with the BESIII detector at center-of-mass energies ranging from 4.128 to…

hep-ph2026

Unveiling a Universal Formalism for Quantum Entanglement in Arbitrary Spin Decays

Junle Pei, Lina Wu, Dianwei Wang +2

We present a comprehensive theoretical framework for probing quantum entanglement in the decay angular distributions of a spin- $S$ particle-antiparticle pair $A A ˉ$ , where each…

hep-ph2026

Excluding Local Hidden Variables in $Λ Λ ˉ$ Production: The Incompatibility with Angular-Momentum Conservation and CPT Invariance

Junle Pei, Lina Wu, Tianjun Li +1

We analyze spin entanglement in $Λ Λ ˉ$ pairs produced in the decays of spin-zero particles, contrasting predictions from quantum field theory (QFT) with those of local hidden-var…

Determining the Spin Density Matrix via Its Rank and Probing the Quantum Entanglement and Bell Non-Locality at the Lepton Colliders

Determining the Spin-Analyzing Powers via Invariants of the Spin Correlation Matrices and Probing the Bell Non-Locality at the Lepton Colliders

Study of ϕ→KKˉ in the amplitude analysis of D+→KS0​KL0​π+

Measurement of branching fractions of Ds+​→KS0​KS0​π+π0 and Ds+​→KS0​K+π0π0

Unveiling a Universal Formalism for Quantum Entanglement in Arbitrary Spin Decays

Excluding Local Hidden Variables in ΛΛˉ Production: The Incompatibility with Angular-Momentum Conservation and CPT Invariance

Study of $ϕ \to K K ˉ$ in the amplitude analysis of $D^{+} \to K_{S}^{0} K_{L}^{0} π^{+}$

Measurement of branching fractions of $D_{s}^{+} \to K_{S}^{0} K_{S}^{0} π^{+} π^{0}$ and $D_{s}^{+} \to K_{S}^{0} K^{+} π^{0} π^{0}$

Excluding Local Hidden Variables in $Λ Λ ˉ$ Production: The Incompatibility with Angular-Momentum Conservation and CPT Invariance