Direct CP Violation in the Decay $B^{+} \rightarrow K^{+} \pi^{0}$ at LHCb

Measurements of CP asymmetries in B-meson systems can be a powerful way to probe for physics beyond the Standard Model. A new measurement, the most precise to date, of the direct CP asymmetry in the decay $B^{+} \rightarrow K^{+} \pi^{0}$ has been performed at LHCb. This direct CP asymmetry is a key input to the studies of a long-standing anomaly in B-meson decays, known as the $K\pi$ puzzle. I will present the new result, which is consistent with the previous measurements and significantly strengthens the anomaly.