Measurement of sin2β in Tree Dominated B0 Decays and Ambiguity Removal

2007/02/23 by H. M. Lacker, Heiko Lacker
Computer Science · Mathematics · Physics and Astronomy · #Algorithms and Data Compression #Ambiguity #Combinatorics #Computer science #Materials science #Mathematics #Neutrino Physics Research #Particle physics #Particle physics theoretical and experimental studies #Physics #Programming language #Tree (set theory) #hep-ex

paper · pdf · doi:10.1016/j.nuclphysbps.2007.05.044

6 pages, 3 postscript figues, contributed to the Proceedings of Beauty2006

arxiv created 2007/02/23 · openalex publication_date 2007/07/18 · arxiv updated 2015/06/25 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/22

Abstract

The most recent results from the B-factories on the time-dependent CP asymmetries measured in B0-decays mediated by b --> c c(bar) s quark-transitions are reviewed. The Standard Model interpretation of the results in terms of the parameter sin2beta leads to a four-fold ambiguity on the unitarity triangle beta which can be reduced to a two-fold ambiguity by measuring the sign of the parameter cos2beta. The results on cos2beta obtained so far are reviewed.

Citations

• CP violation and the CKM matrix: assessing the impact of the asymmetric B factories
• Time-integrated and time-dependent angular analyses ofB→J/ψKπ: A measurement ofcos2βwith no sign ambiguity from strong phases
• CP-Violation in the Renormalizable Theory of Weak Interaction
• Bd0(t)→DPP time-dependent Dalitz plots, CP-violating angles 2β, 2β+γ, and discrete ambiguities