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Using U spin to extract γ from charmless BPPP decays

A preprint version of the article is available at arXiv.

Abstract

Some years ago, a method was proposed for measuring the CP-violating phase γ using pairs of two-body decays that are related by U-spin reflection (ds). In this paper we adapt this method to charmless BPPP decays. Time-dependent Dalitz-plot analyses of these three-body decays are required for the measurement of the mixing-induced CP asymmetries. However, isobar analyses of the decay amplitudes are not necessary. A potential advantage of using three-body decays is that the effects of U-spin breaking may be reduced by averaging over the Dalitz plot. This can be tested independently using the measurements of direct CP asymmetries and branching ratios in three-body charged B decays.

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Correspondence to David London.

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ArXiv ePrint: 1503.00737

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Bhattacharya, B., London, D. Using U spin to extract γ from charmless BPPP decays. J. High Energ. Phys. 2015, 154 (2015). https://doi.org/10.1007/JHEP04(2015)154

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  • DOI: https://doi.org/10.1007/JHEP04(2015)154

Keywords

  • B-Physics
  • CP violation