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arXiv · 1911.12729

Oscillations of $B_s^0$ mesons as a probe of decays with unreconstructed particles

Anton Poluektov·Adam Morris
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Abstract

A new experimental technique to study the decays of $B^0_s$ mesons into final states involving unreconstructable particles is proposed. The method uses a characteristic feature of fast flavour oscillations of $B^0_s$ mesons. Analysis of the oscillation-frequency spectrum of partially reconstructed flavour-tagged $B^0_s$ decays provides information about the mass spectrum of unreconstructed decay products and suppresses any background that does not come from the decays of $B^0_s$ mesons.

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Anton Poluektov, Adam Morris. 2019-11-28. Oscillations of $B_s^0$ mesons as a probe of decays with unreconstructed particles. https://doi.org/10.1007/jhep02(2020)163

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