Theoretical uncertainty in sin 2beta: An update
Marco Ciuchini, Maurizio Pierini, Luca Silvestrini
TL;DR
This paper reviews the theoretical uncertainties in measuring sin 2beta from B meson decays, providing an updated estimate using SU(3) symmetry and recent decay measurements.
Contribution
It offers a new estimate of the theoretical uncertainty in sin 2beta extraction based on SU(3) symmetry and recent experimental data.
Findings
Updated uncertainty estimate for sin 2beta extraction
Use of SU(3) symmetry and Bd -> J/psi pi0 measurements
Refined understanding of theoretical limitations
Abstract
The source of theoretical uncertainty in the extraction of sin 2beta from the measurement of the golden channel Bd -> J/psi K0 is briefly reviewed. An updated estimate of this uncertainty based on SU(3) flavour symmetry and the measurement of the decay Bd -> J/psi pi0 is also presented.
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Taxonomy
TopicsNeutrino Physics Research · Particle physics theoretical and experimental studies · Nuclear physics research studies