2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/127199Sensitivity studies to the CP-violating parameters of the decay Bs->phi phi with the LHCb experiment are presented. The decay proceeds via a b->s s anti-s gluonic-penguin quark transition, which is sensitive to contributions from beyond the Standard Model particles. A time-dependent angular analysis of simulated data leads to an expected statistical uncertainty of 6 degrees on any new physics induced CP-violating phase for a sample corresponding to 2 fb^{-1} of integrated luminosity. The expected precision on sin2beta from the related decay Bd->phi K0S is also discussed.Presented at the CKM2006, 4th International Workshop on the CKM Unitarity TriangleHigh Energy Physics - Phenomenologytext