RT Journal Article T1 First observation of the decay B0s → K0S K ∗(892)0 at LHCb A1 LHCb Collaboration, A1 Adeva Andany, Bernardo A1 Dosil Suárez, Álvaro A1 Fernández Albor, Víctor Manuel A1 Gallas Torreira, Abraham Antonio A1 García Pardiñas, Julián A1 Hernando Morata, José Ángel A1 Lucio Martínez, Miriam A1 Plo Casasus, Máximo A1 Romero Vidal, Antonio A1 Saborido Silva, Juan José A1 Sanmartín Sedes, Brais A1 Santamarina Ríos, Cibrán A1 Vázquez Regueiro, Pablo A1 Vázquez Sierra, Carlos A1 Vieites Díaz, María K1 Hadron-Hadron scattering K1 B physics AB A search for B0(s) → K0S K ∗(892)0 decays is performed using pp collision data, corresponding to an integrated luminosity of 1.0 fb−1, collected with the LHCb detector at a centre-of-mass energy of 7 TeV. The B 0s → K0S K ∗(892)0 decay is observed for the first time, with a significance of 7.1 standard deviations. The branching fraction is measured to beB(B0s→K¯0K∗(892)0)+B(B0s→K0K¯∗(892)0)=(16.4±3.4±2.3)×10−6,where the first uncertainty is statistical and the second is systematic. No evidence is found for the decay B 0 → K 0S K ∗(892)0 and an upper limit is set on the branching fraction, B(B0→K¯0K∗(892)0)+B(B0→K0K¯∗(892)0)<0.96×10−6 , at 90 % confidence level. All results are consistent with Standard Model predictions. PB Springer SN 1029-8479 YR 2016 FD 2016 LK http://hdl.handle.net/10347/22221 UL http://hdl.handle.net/10347/22221 LA eng NO Aaij, R., Adeva, B., Adinolfi, M. et al. First observation of the decay B0s → K0S K ∗(892)0 at LHCb. J. High Energ. Phys. 2016, 12 (2016). https://doi.org/10.1007/JHEP01(2016)012 DS Minerva RD 28 abr 2026