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And then there were two The Belle collaboration at the KEK laboratory in Japan has reported the most accurate measurement to date of the angle ø3 in the "unitarity triangle" that describes the difference between matter and anti-matter in the Standard Model. The team used a technique known as Dalitz plot analysis to analyze the decays of charged B-mesons and their antiparticle equivalents (K Abe et al. 2005 arXiv.org/abs/hep-ex/0504013).
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