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Recent results on CP violation at B factories

Authors :
Sandrine Emery-Schrenk
Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU)
Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay
BaBar
Belle
Source :
Hyperfine Interact., 13th International Conference on Low Energy Antiproton Physics, 13th International Conference on Low Energy Antiproton Physics, Mar 2018, Paris, France. pp.36, ⟨10.1007/s10751-018-1508-0⟩
Publication Year :
2018
Publisher :
HAL CCSD, 2018.

Abstract

We review recent results of the Beauty Factories BaBar and Belle on CP violation in the quark sector and constraints on the CKM unitarity triangle. We first present the recent measurement, using BaBar and Belle data, of cos(2β) = cos(2ϕ1) in B0 → D(∗)h0 with $D \rightarrow {K^{0}_{S}} \pi ^{+} \pi ^{-}$ decays, using a combined time-dependent Dalitz plot analysis. The BaBar Dalitz plot analysis of the $B^{+} \rightarrow {K^{0}_{S}} \pi ^{+} \pi ^{0}$ decay is also presented, and shows an evidence for direct CP violation in B+ → K∗(892)π0. A recently published BaBar measurement of the |V ub| CKM matrix element allows to contrain one side of the unitarity triangle. These analyses use the data sets of the BaBar and Belle experiments containing 471 × 106 and 772 × 106 $B\overline {B}$ pairs collected at the Υ(4S) resonance at the asymmetric-energy B factories PEP-II at SLAC and KEKB at KEK, respectively.

Details

Language :
English
Database :
OpenAIRE
Journal :
Hyperfine Interact., 13th International Conference on Low Energy Antiproton Physics, 13th International Conference on Low Energy Antiproton Physics, Mar 2018, Paris, France. pp.36, ⟨10.1007/s10751-018-1508-0⟩
Accession number :
edsair.doi.dedup.....8fa8c26aa0eda4f9ccc638b18cb2a9f0
Full Text :
https://doi.org/10.1007/s10751-018-1508-0⟩