5 papers · 1 filter
Unraveling weak radiative hyperon decays with broken flavor symmetry
Kaiwen Chen, Lin Qiu, Jin Sun +2
We present a broken flavor analysis of weak radiative decays of spin-1/2 hyperons, incorporating current-current and electromagnetic-penguin contributions as well as charge…
Angular distribution of and implications for form factors
Kaiwen Chen, Zhi-Peng Xing, Xudong Yu +1
We study the cascade semileptonic decay using the helicity amplitude formalism, and derive the full four-body angular distribution. The…
Decoding spin-parity quantum numbers and decay widths of double 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…
Test of Bell Locality Violation in Flavor Entangled Neutral Meson Pair
Kaiwen Chen, Zhi-Peng Xing, Ruilin Zhu
The quasi-spin entanglement of neutral mesons to test the Bell nonlocality is systematically studied. In the case of CP violation, the concrete expression of the Bell inequality fo…
Polarization and quantum entanglement effects in process
Kaiwen Chen, Yiqi Geng, Yichao Jin +2
Motivated by the very recent observation of the decay using proton-proton collision data by the LHCb collaboration, we study the four-body angular distribut…