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http://hdl.handle.net/2307/310
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). | URI: | http://hdl.handle.net/2307/310 | metadata.dc.identifier.url: | http://dspace-roma3.caspur.it/retrieve/1051/68_LAT2009_258.pdf |
Appears in Collections: | X_Dipartimento di Fisica 'Edoardo Amaldi' ATC - Atti di Convegno |
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