Measurement of sin2beta in tree-dominated B0-decays and ambiguity removal
arXiv:hep-ex/0702038 · doi:10.1016/j.nuclphysbps.2007.05.044
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.
6 pages, 3 postscript figues, contributed to the Proceedings of Beauty2006