Z. Xiao

collaborators

4 papers

hep-ex2026

Improved measurement of the branching fraction of $D_{s}^{+} \to I^¼^{+} I^½_{I^} ¼$

BESIII Collaboration, M. Ablikim, M. N. Achasov +608

Using $e^{+} e^{-}$ collision data with an integrated luminosity of $7.33 fb^{- 1}$ collected at center-of-mass energies between 4.128 and 4.226 GeV with the BESIII detector ope…

hep-ph2026

Maxwell theories along the light track: Null Formalism in extended electrodynamics

Zhi Xiao, Bing Sun, Tao Zhu

We develop a differential-form approach to systematically derive the Newman-Penrose null-tetrad equations for Lorentz-violating extensions of Maxwell electrodynamics. The coordinat…

hep-ph2026

Constraints on birefringence-free photon theory within standard-model extension

Zhi Xiao, Hanlin Song, Bo-Qiang Ma

Constraints on the birefringence-free subset of Lorentz-violating (LV) operators are derived using 14 GRB photons in the GeV-band. These constraints target the isotropic $c_{(I)00}…

hep-ph2025

The asymptotic behavior of Lorentz-violating photon fields

Zhi Xiao, Hao Wang

In this work, we derive the Newman-Penrose formalism of Maxwell's equations using two approaches: differential forms and intrinsic derivatives. Denoting $(k_{A F})^{I^} ¼$ as $k^{I^} ¼$ , wi…

Improved measurement of the branching fraction of Ds+​→I^¼+I^½I^​¼

Maxwell theories along the light track: Null Formalism in extended electrodynamics

Constraints on birefringence-free photon theory within standard-model extension

The asymptotic behavior of Lorentz-violating photon fields

Improved measurement of the branching fraction of $D_{s}^{+} \to I^¼^{+} I^½_{I^} ¼$