Discrete Ambiguities

Gustavo Castelo Branco, L. Lavoura, João P. Silva

Type: Book-Chapter

Publication Date: 1999-07-15

Citations: 0

DOI: https://doi.org/10.1093/oso/9780198503996.003.0038

Abstract

Abstract In this chapter we follow closely the analysis of Grossman et al. (1997a), Grossman and Quinn (1997), and Wolfenstein (1997b) on the removal of the discrete ambiguities associated with the extraction of the CKM angles from the cor¬responding CP-asymmetry measurements. There has been renewed interest on this subject and further developments are likely. We neglect the phases and c1 throughout. Clean measurements of CKM phases must be unhindered by hadronic uncertainties. This is the case of CP asymmetries in B decays into CP eigenstates in which the amplitude is dominated by a single weak phase. These cases involve the ratio of an amplitude and its complex conjugate and, hence, twice the relevant CKM phase.

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