Ponente
Sr.
Paolo Lami
(Università degli Studi Roma Tre)
Descripción
We present a lattice QCD determination of the vector and scalar form factors of the kaon semileptonic decay, which are relevant for the extraction of the CKM matrix element |V_{us}| from experimental data. Our results are based on the gauge configurations produced by the European Twisted Mass Collaboration with N_f=2+1+1 dynamical fermions, which account for the sea quark effects of the up, down, strange and charm quarks. We simulated at three different values of the lattice spacing and with pion masses as small as 210 MeV.
Autor primario
Sr.
Paolo Lami
(Università degli Studi Roma Tre)
