CP violation in beauty with the LHCb experiment

Abstract

These proceedings will review two recent LHCb measurements of the mass difference Δ in the 0 − 0 system and present a LHCb combined Δ value. Then recent measurements of the CKM angle will be presented, followed by the correspondingly updated combination result.

Jet charge identification in the e+e− → Z → $$ \textrm{q}\overline{\textrm{q}} $$ process at Z pole

“…This study provides insights into the factors that affect the correlation between jet charge and fragmentation methods of different generators. This result has substantial implications for precise electroweak and flavor physics measurements, such as the forward-backward asymmetry A FB and the electroweak mixing angle sin 2 θ W [16][17][18], the time-dependent CP measurement [28][29][30][31], and the Higgs properties measurement at high-energy frontier [5,6]. In the future, jet charge identification is expected to be extended to multi-jet events, other center-of-mass energy frontiers, and other collision environments such as pp colliders.…”

“…Similarly, the electroweak mixing angle (sin 2 θ W ) is a fundamental parameter that characterizes the strength of the electroweak force [26,27]. Accurate measurement of jet charge is essential in determining A FB and sin 2 θ W Furthermore, in flavor physics, the time-dependent CP measurement plays a crucial role in studying the violation of CP symmetry in particle decays [28][29][30][31].…”