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Investigating the polarisation puzzle with B0(s) -> K*K* decays at LHCb

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If you have a question about this talk, please contact Dr Paul Swallow .

Charmless decays of a B meson to two vector particles offer many different avenues to explore the Standard Model. There has been a longstanding discrepancy between experimental measurements of the longitudinal polarisation fractions in charmless B->VV decays, both between the experimental measurements of different decays and with SM predictions, which has been dubbed the “polarisation puzzle”. In this talk, I will present results from a recent LHCb analysis, updating branching fraction and polarisation fraction measurements in both Bd and Bs decays to a Kstar Kstarbar final state.

This talk is part of the Cavendish HEP Seminars series.

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