Measurement of Branching Fractions and direct CP Violation in B0 → K+π− and B0 → π+π− Decays at the Belle II Experiment

Sumitted to PubDB: 2025-05-06

Category: Phd Thesis

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Principal Authors	Benedikt Wach
Date	2023-10-23
Belle II Number	BELLE2-PTHESIS-2025-013
Abstract	We present measurements of branching fractions and direct CP violation in B0 → K+π- and B0 → π+π- decays. The analyzed data contains (387 ± 6) x 106 B-meson pairs collected with the Belle II detector, using e+e- collisions at the ϒ(4S) resonance provided by the SuperKEKB collider. The values are in agreement with current global averages and are combined with measurements of related B → Kπ transitions to test the Standard Model in a sum rule exploiting isospin symmetry.