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Title: Kaon oscillations in the Standard Model and Beyond using Nf=2 dynamical quarks
Authors: Bertone, Valerio
Dimopoulos, Petros
Frezzotti, Roberto
Gimenez, Vicent
Lubicz, Vittorio
Mescia, Federico
Palao, David
Papinutto, Mauro
Rossi, Giancarlo
Simula, Silvano
Vladikas, Anastassios
Keywords: Lattice QCD
Kaon Physics
Issue Date: 2009
Publisher: SISSA Scuola internazionale superiore di studi avanzati
Pages: 1-7
Abstract: We compute non-perturbatively the B-parameters of the complete basis of four-fermion operators needed to study the Kaon oscillations in the SM and in its supersymmetric extension. We perform numerical simulations with two dynamical maximally twisted sea quarks at three values of the lattice spacing on configurations generated by the ETMC. Unwanted operator mixings and O(a) discretization effects are removed by discretizing the valence quarks with a suitable Osterwalder-Seiler variant of the Twisted Mass action. Operators are renormalized non-perturbatively in the RI/MOM scheme. Our preliminary result for BK(RGI) is 0.73(3)(3).
Appears in Collections:X_Dipartimento di Fisica 'Edoardo Amaldi'
ATC - Atti di Convegno

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