Testing the standard model and searching for new physics with B d → ππ and B s → KK decays (original) (raw)

2012, Journal of High Energy Physics

AI-generated Abstract

This paper explores a combined analysis of the B_d → ππ and B_s → KK decay modes, utilizing a global CKM fit to evaluate new physics (NP) contributions and refine constraints on penguin amplitudes and the Bs mixing phase. The significance of CP violation is assessed within the framework of the CKM paradigm, illustrating how experimental data, particularly from the LHCb collaboration, can enhance the analysis of weak phases despite complications from discrete ambiguities. The study emphasizes the necessity of a comprehensive approach to characterizing decay amplitudes in the B_s system and the advantages of incorporating U-spin symmetry relations.

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