3 papers
hep-ph2026
decay and CP violating observables in the presence of new physics contributions
Xuanning Guo, Albertus Hariwangsa Panuluh, Hiroyuki Umeeda +1
In this work, a comprehensive analysis for processes related to transitions are carried out, including new physics contributions. In light of a recent ten…
hep-ph2025
mixing in the Dyson-Schwinger approach
Xiaotong Xie, Hiroyuki Umeeda, Jinglong Zhu
In view of difficulty to reproduce observables in the mixing via the operator product expansion, we discuss the Dyson-Schwinger approach to this process. Formulated…
hep-ph2025
Decay as a Probe of Complex Conjugate Poles
Jinglong Zhu, Hiroyuki Umeeda
In this work, nontrivial analytic structure of the quark propagator is discussed for -meson inclusive decays. Attributed to invalidity of the standard Källén-Lehman spectral r…