Hot Topics from Belle
Tim Gershon (for the Belle Collaboration)
TL;DR
This paper reports a precise measurement of the Unitarity Triangle angle φ₃ using B meson decays and Dalitz plot analysis, providing important insights into CP violation in the quark sector.
Contribution
It presents the most precise determination of φ₃ using B+ decays and Dalitz plot analysis, improving the understanding of CP violation.
Findings
φ₃ = 68° with uncertainties
Enhanced precision over previous measurements
Supports the Standard Model predictions
Abstract
The most precise current determination of the Unitarity Triangle angle is presented. It is obtained using the decay , with Dalitz plot analysis of the subsequent decay. The result is \phi_3 = 68^\circ ^{+14^\circ}_{-15^\circ} \stat \pm 13^\circ \syst \pm 11^\circ \model.
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Taxonomy
TopicsParticle physics theoretical and experimental studies · Quantum Chromodynamics and Particle Interactions · Particle Accelerators and Free-Electron Lasers