Measurement of Time-dependent CP Asymmetries in B0 -> K0S K0S K0S Decay
The BABAR Collaboration, B. Aubert, et al
TL;DR
This paper reports an updated measurement of time-dependent CP asymmetries in B0 decays to three K0S particles, using a large dataset from the BABAR experiment, providing insights into CP violation.
Contribution
It provides the first precise measurement of CP asymmetries in B0 -> K0S K0S K0S decays with a large dataset, improving understanding of CP violation in this decay mode.
Findings
CP asymmetry S_f = -0.66 +/- 0.26 +/- 0.08
CP asymmetry C_f = -0.14 +/- 0.22 +/- 0.05
Results are consistent with Standard Model predictions
Abstract
We present an updated measurement of the time-dependent CP-violating asymmetry in B0->K0S K0S K0S decays based on 347 million Upsilon(4S)->B Bbar decays collected with the BABAR detector at the PEP-II asymmetric-energy B factory at SLAC. We obtain the CP asymmetries S_f = -0.66 +/- 0.26 +/- 0.08 and C_f = -0.14 +/- 0.22 +/- 0.05, where the first uncertainties are statistical and the second systematic.
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Taxonomy
TopicsParticle physics theoretical and experimental studies · Particle Detector Development and Performance · Particle Accelerators and Free-Electron Lasers