We present preliminary results on the of neutral kaon oscillations in extensions of the Standard Model. Using Nf=2 maximally twisted sea quarks and Osterwalder-Seiler valence quarks, we achieve both O(a)-improvement and continuum-like renormalization pattern for the relevant four-fermion operators. We perform simulations at three values of the lattice spacing and extrapolate/interpolate our results to the continuum limit and physical light/strange quark mass. The calculation of the renormalization constants of the complete operator basis is performed non- perturbatively in the RI-MOM scheme.

Dimopoulos, P., Martinelli, G., Frezzotti, R., Rossi G., C., Vladikas, A., Gimenez, V., et al. (2010). K0-K0bar Mixing Beyond the SM from Nf=2 tmQCD. In Proceedings of the 28th International Symposium on Lattice Field Theory, Lattice 2010 (pp.302).

K0-K0bar Mixing Beyond the SM from Nf=2 tmQCD

LUBICZ, Vittorio;
2010-01-01

Abstract

We present preliminary results on the of neutral kaon oscillations in extensions of the Standard Model. Using Nf=2 maximally twisted sea quarks and Osterwalder-Seiler valence quarks, we achieve both O(a)-improvement and continuum-like renormalization pattern for the relevant four-fermion operators. We perform simulations at three values of the lattice spacing and extrapolate/interpolate our results to the continuum limit and physical light/strange quark mass. The calculation of the renormalization constants of the complete operator basis is performed non- perturbatively in the RI-MOM scheme.
Dimopoulos, P., Martinelli, G., Frezzotti, R., Rossi G., C., Vladikas, A., Gimenez, V., et al. (2010). K0-K0bar Mixing Beyond the SM from Nf=2 tmQCD. In Proceedings of the 28th International Symposium on Lattice Field Theory, Lattice 2010 (pp.302).
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11590/176949
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? ND
social impact