Impact of B physics on model building and vice versa: An example

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We motivate that the start-up of the B factories has opened a new precision flavour physics era, with an important effect on model building. Using as an example a left-right model with spontaneous CP violation, we will show how the inclusion of the new experimental data on B physics observables, together with the old observables coming from kaon physics, has significantly widened our capacity to strongly constrain the parameter space up to the point to exclude models. On the contrary, using certain hypotheses, mainly concerning isospin, we discuss how theory may help us to 'test' the data on charged, neutral and mixed B → πK decays once experimental errors will be reduced.
Original languageEnglish
Pages (from-to)197-209
JournalNuclear Physics B - Proceedings Supplements
Publication statusPublished - 1 Jan 2003


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