Observation of B0s→ K∗±K∓and evidence for B0s→ K∗-π+decays

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Abstract

Measurements of the branching fractions of B0s→ K∗±K∓and B0sK∗±π∓decays are performed using a data sample corresponding to 1.0 fb-1of proton-proton collision data collected with the LHCb detector at a centre-of-mass energy of 7 TeV, where the K∗±mesons are reconstructed in the K0sπ±final state. The first observation of the B0s→ K∗±K∓decay and the first evidence for the B0s→ K∗-π+decay are reported with branching fractions (Equation presented), where the first uncertainties are statistical and the second are systematic. In addition, an upper limit of B(B0→ K∗±K∓) < 0.4 (0.5) × 10-6is set at 90% (95%) confidence level.

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Aaij, R., Adeva, B., Adinolfi, M., Affolder, A., Ajaltouni, Z., Akar, S., … Zvyagin, A. (2014). Observation of B0s→ K∗±K∓and evidence for B0s→ K∗-π+decays. New Journal of Physics, 16. https://doi.org/10.1088/1367-2630/16/12/123001

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